WIP - scaffold approvals

.env.api

@@ -5,6 +5,11 @@ DATABASE_URL="mysql://platform:platform@db:3306/platform"
 CENTRAL_DATABASE_URL="mysql://root:asjdnfqTash37faggT@db:3306/central_platform"
 REDIS_URL="redis://redis:6379"
 
+# Meilisearch (optional)
+MEILI_HOST="http://meilisearch:7700"
+MEILI_API_KEY="dev-meili-master-key"
+MEILI_INDEX_PREFIX="tenant_"
+
 # JWT, multi-tenant hints, etc.
 JWT_SECRET="devsecret"
 TENANCY_STRATEGY="single-db"

.env.web

@@ -2,4 +2,4 @@ NUXT_PORT=3001
 NUXT_HOST=0.0.0.0
 
 # Point Nuxt to the API container (not localhost)
-NUXT_PUBLIC_API_BASE_URL=http://jupiter.routebox.co:3000
+NUXT_PUBLIC_API_BASE_URL=https://tenant1.routebox.co

DEBUG_INCOMING_CALL.md

@@ -0,0 +1,83 @@
+# Debugging Incoming Call Issue
+
+## Current Problem
+- Hear "Connecting to your call" message (TwiML is executing)
+- No ring on mobile after "Connecting" message
+- Click Accept button does nothing
+- Call never connects
+
+## Root Cause Hypothesis
+The Twilio Device SDK is likely **NOT receiving the incoming call event** from Twilio's Signaling Server. This could be because:
+
+1. **Identity Mismatch**: The Device's identity (from JWT token) doesn't match the `<Client>ID</Client>` in TwiML
+2. **Device Not Registered**: Device registration isn't completing before the call arrives
+3. **Twilio Signaling Issue**: Device isn't connected to Twilio Signaling Server
+
+## How to Debug
+
+### Step 1: Check Device Identity in Console
+When you open the softphone dialog, **open Browser DevTools Console (F12)**
+
+You should see logs like:
+```
+Token received, creating Device...
+Token identity: e6d45fa3-a108-4085-81e5-a8e05e85e6fb
+Token grants: {voice: {...}}
+Registering Twilio Device...
+✓ Twilio Device registered - ready to receive calls
+Device identity: e6d45fa3-a108-4085-81e5-a8e05e85e6fb
+Device state: ready
+```
+
+**Note the Device identity value** - e.g., "e6d45fa3-a108-4085-81e5-a8e05e85e6fb"
+
+### Step 2: Check Backend Logs
+When you make an inbound call, look for backend logs showing:
+
+```
+╔════════════════════════════════════════╗
+║ === INBOUND CALL RECEIVED ===
+╚════════════════════════════════════════╝
+...
+Client IDs to dial: e6d45fa3-a108-4085-81e5-a8e05e85e6fb
+First Client ID format check: "e6d45fa3-a108-4085-81e5-a8e05e85e6fb" (length: 36)
+```
+
+### Step 3: Compare Identities
+The Device identity from frontend console MUST MATCH the Client ID from backend logs.
+
+**If they match**: The issue is with Twilio Signaling or Device SDK configuration
+**If they don't match**: We found the bug - identity mismatch
+
+### Step 4: Monitor Incoming Event
+When you make the inbound call, keep watching the browser console for:
+
+```
+🔔 Twilio Device INCOMING event received: {...}
+```
+
+**If this appears**: The Device SDK IS receiving the call, so the Accept button issue is frontend
+**If this doesn't appear**: The Device SDK is NOT receiving the call, so it's an identity/registration issue
+
+## What Changed
+- Frontend now relies on **Twilio Device SDK `incoming` event** (not Socket.IO) for showing incoming call
+- Added comprehensive logging to Device initialization
+- Added logging to Accept button handler
+- Backend logs Device ID format for comparison
+
+## Next Steps
+
+1. Make an inbound call
+2. Check browser console for the 5 logs above
+3. Check backend logs for Client ID
+4. Look for "🔔 Twilio Device INCOMING event" in browser console
+5. Try clicking Accept and watch console for "📞 Accepting call" logs
+6. Report back with:
+   - Device identity from console
+   - Client ID from backend logs
+   - Whether "🔔 Twilio Device INCOMING event" appears
+   - Whether any accept logs appear
+
+## Important Files
+- Backend: `/backend/src/voice/voice.controller.ts` (lines 205-210 show Client ID logging)
+- Frontend: `/frontend/composables/useSoftphone.ts` (Device initialization and incoming handler)

SOFTPHONE_AI_ASSISTANT.md

@@ -0,0 +1,173 @@
+# Softphone AI Assistant - Complete Implementation
+
+## 🎉 Features Implemented
+
+### ✅ Real-time AI Call Assistant
+- **OpenAI Realtime API Integration** - Listens to live calls and provides suggestions
+- **Audio Streaming** - Twilio Media Streams fork audio to backend for AI processing
+- **Real-time Transcription** - Speech-to-text during calls
+- **Smart Suggestions** - AI analyzes conversation and advises the agent
+
+## 🔧 Architecture
+
+### Backend Flow
+```
+Inbound Call → TwiML (<Start><Stream> + <Dial>) 
+→ Media Stream WebSocket → OpenAI Realtime API 
+→ AI Processing → Socket.IO → Frontend
+```
+
+### Key Components
+
+1. **TwiML Structure** (`voice.controller.ts:226-234`)
+   - `<Start><Stream>` - Forks audio for AI processing
+   - `<Dial><Client>` - Connects call to agent's softphone
+
+2. **OpenAI Integration** (`voice.service.ts:431-519`)
+   - WebSocket connection to `wss://api.openai.com/v1/realtime?model=gpt-4o-realtime-preview-2024-10-01`
+   - Session config with custom instructions for agent assistance
+   - Handles transcripts and generates suggestions
+
+3. **AI Message Handler** (`voice.service.ts:609-707`)
+   - Processes OpenAI events (transcripts, suggestions, audio)
+   - Routes suggestions to frontend via Socket.IO
+   - Saves transcripts to database
+
+4. **Voice Gateway** (`voice.gateway.ts:272-289`)
+   - `notifyAiTranscript()` - Real-time transcript chunks
+   - `notifyAiSuggestion()` - AI suggestions to agent
+
+### Frontend Components
+
+1. **Softphone Dialog** (`SoftphoneDialog.vue:104-135`)
+   - AI Assistant section with badge showing suggestion count
+   - Color-coded suggestions (blue=response, green=action, purple=insight)
+   - Animated highlight for newest suggestion
+
+2. **Softphone Composable** (`useSoftphone.ts:515-535`)
+   - Socket.IO event handlers for `ai:suggestion` and `ai:transcript`
+   - Maintains history of last 10 suggestions
+   - Maintains history of last 50 transcript items
+
+## 📋 AI Prompt Configuration
+
+The AI is instructed to:
+- **Listen, not talk** - It advises the agent, not the caller
+- **Provide concise suggestions** - 1-2 sentences max
+- **Use formatted output**:
+  - `💡 Suggestion: [advice]`
+  - `⚠️ Alert: [important notice]`
+  - `📋 Action: [CRM action]`
+
+## 🎨 UI Features
+
+### Suggestion Types
+- **Response** (Blue) - Suggested replies or approaches
+- **Action** (Green) - Recommended CRM actions
+- **Insight** (Purple) - Important alerts or observations
+
+### Visual Feedback
+- Badge showing number of suggestions
+- Newest suggestion pulses for attention
+- Auto-scrolling suggestion list
+- Timestamp on each suggestion
+
+## 🔍 How to Monitor
+
+### 1. Backend Logs
+```bash
+# Watch for AI events
+docker logs -f neo-backend-1 | grep -E "AI|OpenAI|transcript|suggestion"
+```
+
+Key log markers:
+- `📝 Transcript chunk:` - Real-time speech detection
+- `✅ Final transcript:` - Complete transcript saved
+- `💡 AI Suggestion:` - AI-generated advice
+
+### 2. Database
+```sql
+-- View call transcripts
+SELECT call_sid, ai_transcript, created_at 
+FROM calls 
+ORDER BY created_at DESC 
+LIMIT 5;
+```
+
+### 3. Frontend Console
+- Open browser DevTools Console
+- Watch for: "AI suggestion:", "AI transcript:"
+
+## 🚀 Testing
+
+1. **Make a test call** to your Twilio number
+2. **Accept the call** in the softphone dialog
+3. **Talk during the call** - Say something like "I need to schedule a follow-up"
+4. **Watch the UI** - AI suggestions appear in real-time
+5. **Check logs** - See transcription and suggestion generation
+
+## 📊 Current Status
+
+✅ **Working**:
+- Inbound calls ring softphone
+- Media stream forks audio to backend
+- OpenAI processes audio (1300+ packets/call)
+- AI generates suggestions
+- Suggestions appear in frontend
+- Transcripts saved to database
+
+## 🔧 Configuration
+
+### Required Environment Variables
+```env
+# OpenAI API Key (set in tenant integrations config)
+OPENAI_API_KEY=sk-...
+
+# Optional overrides
+OPENAI_MODEL=gpt-4o-realtime-preview-2024-10-01
+OPENAI_VOICE=alloy
+```
+
+### Tenant Configuration
+Set in Settings > Integrations:
+- OpenAI API Key
+- Model (optional)
+- Voice (optional)
+
+## 🎯 Next Steps (Optional Enhancements)
+
+1. **CRM Tool Execution** - Implement actual tool calls (search contacts, create tasks)
+2. **Audio Response** - Send OpenAI audio back to caller (two-way AI interaction)
+3. **Sentiment Analysis** - Track call sentiment in real-time
+4. **Call Summary** - Generate post-call summary automatically
+5. **Custom Prompts** - Allow agents to customize AI instructions per call type
+
+## 🐛 Troubleshooting
+
+### No suggestions appearing?
+1. Check OpenAI API key is configured
+2. Verify WebSocket connection logs show "OpenAI Realtime connected"
+3. Check frontend Socket.IO connection is established
+4. Verify user ID matches between backend and frontend
+
+### Transcripts not saving?
+1. Check tenant database connection
+2. Verify `calls` table has `ai_transcript` column
+3. Check logs for "Failed to update transcript" errors
+
+### OpenAI connection fails?
+1. Verify API key is valid
+2. Check model name is correct
+3. Review WebSocket close codes in logs
+
+## 📝 Files Modified
+
+**Backend:**
+- `/backend/src/voice/voice.service.ts` - OpenAI integration & AI message handling
+- `/backend/src/voice/voice.controller.ts` - TwiML generation with stream fork
+- `/backend/src/voice/voice.gateway.ts` - Socket.IO event emission
+- `/backend/src/main.ts` - Media stream WebSocket handler
+
+**Frontend:**
+- `/frontend/components/SoftphoneDialog.vue` - AI suggestions UI
+- `/frontend/composables/useSoftphone.ts` - Socket.IO event handlers

backend/migrations/tenant/20250129000001_add_authorization_system.js

@@ -0,0 +1,103 @@
+exports.up = function (knex) {
+  return knex.schema
+    // Add orgWideDefault to object_definitions
+    .alterTable('object_definitions', (table) => {
+      table
+        .enum('orgWideDefault', ['private', 'public_read', 'public_read_write'])
+        .defaultTo('private')
+        .notNullable();
+    })
+    // Create role_object_permissions table
+    .createTable('role_object_permissions', (table) => {
+      table.uuid('id').primary().defaultTo(knex.raw('(UUID())'));
+      table.uuid('roleId').notNullable();
+      table.uuid('objectDefinitionId').notNullable();
+      table.boolean('canCreate').defaultTo(false);
+      table.boolean('canRead').defaultTo(false);
+      table.boolean('canEdit').defaultTo(false);
+      table.boolean('canDelete').defaultTo(false);
+      table.boolean('canViewAll').defaultTo(false);
+      table.boolean('canModifyAll').defaultTo(false);
+      table.timestamps(true, true);
+
+      table
+        .foreign('roleId')
+        .references('id')
+        .inTable('roles')
+        .onDelete('CASCADE');
+      table
+        .foreign('objectDefinitionId')
+        .references('id')
+        .inTable('object_definitions')
+        .onDelete('CASCADE');
+      table.unique(['roleId', 'objectDefinitionId']);
+      table.index(['roleId']);
+      table.index(['objectDefinitionId']);
+    })
+    // Create role_field_permissions table
+    .createTable('role_field_permissions', (table) => {
+      table.uuid('id').primary().defaultTo(knex.raw('(UUID())'));
+      table.uuid('roleId').notNullable();
+      table.uuid('fieldDefinitionId').notNullable();
+      table.boolean('canRead').defaultTo(true);
+      table.boolean('canEdit').defaultTo(true);
+      table.timestamps(true, true);
+
+      table
+        .foreign('roleId')
+        .references('id')
+        .inTable('roles')
+        .onDelete('CASCADE');
+      table
+        .foreign('fieldDefinitionId')
+        .references('id')
+        .inTable('field_definitions')
+        .onDelete('CASCADE');
+      table.unique(['roleId', 'fieldDefinitionId']);
+      table.index(['roleId']);
+      table.index(['fieldDefinitionId']);
+    })
+    // Create record_shares table for sharing specific records
+    .createTable('record_shares', (table) => {
+      table.uuid('id').primary().defaultTo(knex.raw('(UUID())'));
+      table.uuid('objectDefinitionId').notNullable();
+      table.uuid('recordId').notNullable();
+      table.uuid('granteeUserId').notNullable();
+      table.uuid('grantedByUserId').notNullable();
+      table.json('accessLevel').notNullable(); // { canRead, canEdit, canDelete }
+      table.timestamp('expiresAt').nullable();
+      table.timestamp('revokedAt').nullable();
+      table.timestamp('createdAt').defaultTo(knex.fn.now());
+      table.timestamp('updatedAt').defaultTo(knex.fn.now());
+
+      table
+        .foreign('objectDefinitionId')
+        .references('id')
+        .inTable('object_definitions')
+        .onDelete('CASCADE');
+      table
+        .foreign('granteeUserId')
+        .references('id')
+        .inTable('users')
+        .onDelete('CASCADE');
+      table
+        .foreign('grantedByUserId')
+        .references('id')
+        .inTable('users')
+        .onDelete('CASCADE');
+      table.index(['objectDefinitionId', 'recordId']);
+      table.index(['granteeUserId']);
+      table.index(['expiresAt']);
+      table.index(['revokedAt']);
+    });
+};
+
+exports.down = function (knex) {
+  return knex.schema
+    .dropTableIfExists('record_shares')
+    .dropTableIfExists('role_field_permissions')
+    .dropTableIfExists('role_object_permissions')
+    .alterTable('object_definitions', (table) => {
+      table.dropColumn('orgWideDefault');
+    });
+};

backend/migrations/tenant/20250203000001_create_calls_table.js

@@ -0,0 +1,55 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = async function (knex) {
+  // Create calls table for tracking voice calls
+  await knex.schema.createTable('calls', (table) => {
+    table.string('id', 36).primary();
+    table.string('call_sid', 100).unique().notNullable().comment('Twilio call SID');
+    table.enum('direction', ['inbound', 'outbound']).notNullable();
+    table.string('from_number', 20).notNullable();
+    table.string('to_number', 20).notNullable();
+    table.enum('status', [
+      'queued',
+      'ringing',
+      'in-progress',
+      'completed',
+      'busy',
+      'failed',
+      'no-answer',
+      'canceled'
+    ]).notNullable().defaultTo('queued');
+    table.integer('duration_seconds').unsigned().nullable();
+    table.string('recording_url', 500).nullable();
+    table.text('ai_transcript').nullable().comment('Full transcript from OpenAI');
+    table.text('ai_summary').nullable().comment('AI-generated summary');
+    table.json('ai_insights').nullable().comment('Structured insights from AI');
+    table.string('user_id', 36).notNullable().comment('User who handled the call');
+    table.timestamp('started_at').nullable();
+    table.timestamp('ended_at').nullable();
+    table.timestamp('created_at').defaultTo(knex.fn.now());
+    table.timestamp('updated_at').defaultTo(knex.fn.now());
+
+    // Indexes
+    table.index('call_sid');
+    table.index('user_id');
+    table.index('status');
+    table.index('direction');
+    table.index(['created_at', 'user_id']);
+
+    // Foreign key to users table
+    table.foreign('user_id').references('id').inTable('users').onDelete('CASCADE');
+  });
+
+  console.log('✅ Created calls table');
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = async function (knex) {
+  await knex.schema.dropTableIfExists('calls');
+  console.log('✅ Dropped calls table');
+};

backend/migrations/tenant/20250305000001_create_contacts_and_contact_details.js

@@ -0,0 +1,207 @@
+exports.up = async function (knex) {
+  await knex.schema.createTable('contacts', (table) => {
+    table.uuid('id').primary().defaultTo(knex.raw('(UUID())'));
+    table.string('firstName', 100).notNullable();
+    table.string('lastName', 100).notNullable();
+    table.uuid('accountId').notNullable();
+    table.timestamps(true, true);
+
+    table
+      .foreign('accountId')
+      .references('id')
+      .inTable('accounts')
+      .onDelete('CASCADE');
+    table.index(['accountId']);
+    table.index(['lastName', 'firstName']);
+  });
+
+  await knex.schema.createTable('contact_details', (table) => {
+    table.uuid('id').primary().defaultTo(knex.raw('(UUID())'));
+    table.string('relatedObjectType', 100).notNullable();
+    table.uuid('relatedObjectId').notNullable();
+    table.string('detailType', 50).notNullable();
+    table.string('label', 100);
+    table.text('value').notNullable();
+    table.boolean('isPrimary').defaultTo(false);
+    table.timestamps(true, true);
+
+    table.index(['relatedObjectType', 'relatedObjectId']);
+    table.index(['detailType']);
+  });
+
+  const [contactObjectId] = await knex('object_definitions').insert({
+    id: knex.raw('(UUID())'),
+    apiName: 'Contact',
+    label: 'Contact',
+    pluralLabel: 'Contacts',
+    description: 'Standard Contact object',
+    isSystem: true,
+    isCustom: false,
+    created_at: knex.fn.now(),
+    updated_at: knex.fn.now(),
+  });
+
+  const contactObjectDefId =
+    contactObjectId ||
+    (await knex('object_definitions').where('apiName', 'Contact').first()).id;
+
+  await knex('field_definitions').insert([
+    {
+      id: knex.raw('(UUID())'),
+      objectDefinitionId: contactObjectDefId,
+      apiName: 'firstName',
+      label: 'First Name',
+      type: 'String',
+      length: 100,
+      isRequired: true,
+      isSystem: true,
+      isCustom: false,
+      displayOrder: 1,
+      created_at: knex.fn.now(),
+      updated_at: knex.fn.now(),
+    },
+    {
+      id: knex.raw('(UUID())'),
+      objectDefinitionId: contactObjectDefId,
+      apiName: 'lastName',
+      label: 'Last Name',
+      type: 'String',
+      length: 100,
+      isRequired: true,
+      isSystem: true,
+      isCustom: false,
+      displayOrder: 2,
+      created_at: knex.fn.now(),
+      updated_at: knex.fn.now(),
+    },
+    {
+      id: knex.raw('(UUID())'),
+      objectDefinitionId: contactObjectDefId,
+      apiName: 'accountId',
+      label: 'Account',
+      type: 'Reference',
+      referenceObject: 'Account',
+      isRequired: true,
+      isSystem: true,
+      isCustom: false,
+      displayOrder: 3,
+      created_at: knex.fn.now(),
+      updated_at: knex.fn.now(),
+    },
+  ]);
+
+  const [contactDetailObjectId] = await knex('object_definitions').insert({
+    id: knex.raw('(UUID())'),
+    apiName: 'ContactDetail',
+    label: 'Contact Detail',
+    pluralLabel: 'Contact Details',
+    description: 'Polymorphic contact detail object',
+    isSystem: true,
+    isCustom: false,
+    created_at: knex.fn.now(),
+    updated_at: knex.fn.now(),
+  });
+
+  const contactDetailObjectDefId =
+    contactDetailObjectId ||
+    (await knex('object_definitions').where('apiName', 'ContactDetail').first())
+      .id;
+
+  const contactDetailRelationObjects = ['Account', 'Contact']
+
+  await knex('field_definitions').insert([
+    {
+      id: knex.raw('(UUID())'),
+      objectDefinitionId: contactDetailObjectDefId,
+      apiName: 'relatedObjectType',
+      label: 'Related Object Type',
+      type: 'PICKLIST',
+      length: 100,
+      isRequired: true,
+      isSystem: false,
+      isCustom: false,
+      displayOrder: 1,
+      ui_metadata: JSON.stringify({
+        options: contactDetailRelationObjects.map((value) => ({ label: value, value })),
+      }),
+      created_at: knex.fn.now(),
+      updated_at: knex.fn.now(),
+    },
+    {
+      id: knex.raw('(UUID())'),
+      objectDefinitionId: contactDetailObjectDefId,
+      apiName: 'relatedObjectId',
+      label: 'Related Object ID',
+      type: 'LOOKUP',
+      length: 36,
+      isRequired: true,
+      isSystem: false,
+      isCustom: false,
+      displayOrder: 2,
+      ui_metadata: JSON.stringify({
+        relationObjects: contactDetailRelationObjects,
+        relationTypeField: 'relatedObjectType',
+        relationDisplayField: 'name',
+      }),
+      created_at: knex.fn.now(),
+      updated_at: knex.fn.now(),
+    },
+    {
+      id: knex.raw('(UUID())'),
+      objectDefinitionId: contactDetailObjectDefId,
+      apiName: 'detailType',
+      label: 'Detail Type',
+      type: 'String',
+      length: 50,
+      isRequired: true,
+      isSystem: false,
+      isCustom: false,
+      displayOrder: 3,
+      created_at: knex.fn.now(),
+      updated_at: knex.fn.now(),
+    },
+    {
+      id: knex.raw('(UUID())'),
+      objectDefinitionId: contactDetailObjectDefId,
+      apiName: 'label',
+      label: 'Label',
+      type: 'String',
+      length: 100,
+      isSystem: false,
+      isCustom: false,
+      displayOrder: 4,
+      created_at: knex.fn.now(),
+      updated_at: knex.fn.now(),
+    },
+    {
+      id: knex.raw('(UUID())'),
+      objectDefinitionId: contactDetailObjectDefId,
+      apiName: 'value',
+      label: 'Value',
+      type: 'Text',
+      isRequired: true,
+      isSystem: false,
+      isCustom: false,
+      displayOrder: 5,
+      created_at: knex.fn.now(),
+      updated_at: knex.fn.now(),
+    },
+    {
+      id: knex.raw('(UUID())'),
+      objectDefinitionId: contactDetailObjectDefId,
+      apiName: 'isPrimary',
+      label: 'Primary',
+      type: 'Boolean',
+      isSystem: false,
+      isCustom: false,
+      displayOrder: 6,
+      created_at: knex.fn.now(),
+      updated_at: knex.fn.now(),
+    },
+  ]);
+};
+
+exports.down = async function (knex) {
+  await knex.schema.dropTableIfExists('contact_details');
+  await knex.schema.dropTableIfExists('contacts');
+};

backend/migrations/tenant/20250305000002_update_contact_detail_polymorphic_fields.js

@@ -0,0 +1,101 @@
+exports.up = async function (knex) {
+  const contactDetailObject = await knex('object_definitions')
+    .where({ apiName: 'ContactDetail' })
+    .first();
+
+  if (!contactDetailObject) return;
+
+  const relationObjects = ['Account', 'Contact'];
+
+  await knex('field_definitions')
+    .where({
+      objectDefinitionId: contactDetailObject.id,
+      apiName: 'relatedObjectType',
+    })
+    .update({
+      type: 'PICKLIST',
+      length: 100,
+      isSystem: false,
+      ui_metadata: JSON.stringify({
+        options: relationObjects.map((value) => ({ label: value, value })),
+      }),
+      updated_at: knex.fn.now(),
+    });
+
+  await knex('field_definitions')
+    .where({
+      objectDefinitionId: contactDetailObject.id,
+      apiName: 'relatedObjectId',
+    })
+    .update({
+      type: 'LOOKUP',
+      length: 36,
+      isSystem: false,
+      ui_metadata: JSON.stringify({
+        relationObjects,
+        relationTypeField: 'relatedObjectType',
+        relationDisplayField: 'name',
+      }),
+      updated_at: knex.fn.now(),
+    });
+
+  await knex('field_definitions')
+    .whereIn('apiName', [
+      'detailType',
+      'label',
+      'value',
+      'isPrimary',
+    ])
+    .andWhere({ objectDefinitionId: contactDetailObject.id })
+    .update({
+      isSystem: false,
+      updated_at: knex.fn.now(),
+    });
+};
+
+exports.down = async function (knex) {
+  const contactDetailObject = await knex('object_definitions')
+    .where({ apiName: 'ContactDetail' })
+    .first();
+
+  if (!contactDetailObject) return;
+
+  await knex('field_definitions')
+    .where({
+      objectDefinitionId: contactDetailObject.id,
+      apiName: 'relatedObjectType',
+    })
+    .update({
+      type: 'String',
+      length: 100,
+      isSystem: true,
+      ui_metadata: null,
+      updated_at: knex.fn.now(),
+    });
+
+  await knex('field_definitions')
+    .where({
+      objectDefinitionId: contactDetailObject.id,
+      apiName: 'relatedObjectId',
+    })
+    .update({
+      type: 'String',
+      length: 36,
+      isSystem: true,
+      ui_metadata: null,
+      updated_at: knex.fn.now(),
+    });
+
+  await knex('field_definitions')
+    .whereIn('apiName', [
+      'detailType',
+      'label',
+      'value',
+      'isPrimary',
+    ])
+    .andWhere({ objectDefinitionId: contactDetailObject.id })
+    .update({
+      isSystem: true,
+      updated_at: knex.fn.now(),
+    });
+};

backend/migrations/tenant/20250305000003_make_contact_detail_fields_editable.js

@@ -0,0 +1,45 @@
+exports.up = async function (knex) {
+  const contactDetailObject = await knex('object_definitions')
+    .where({ apiName: 'ContactDetail' })
+    .first();
+
+  if (!contactDetailObject) return;
+
+  await knex('field_definitions')
+    .where({ objectDefinitionId: contactDetailObject.id })
+    .whereIn('apiName', [
+      'relatedObjectType',
+      'relatedObjectId',
+      'detailType',
+      'label',
+      'value',
+      'isPrimary',
+    ])
+    .update({
+      isSystem: false,
+      updated_at: knex.fn.now(),
+    });
+};
+
+exports.down = async function (knex) {
+  const contactDetailObject = await knex('object_definitions')
+    .where({ apiName: 'ContactDetail' })
+    .first();
+
+  if (!contactDetailObject) return;
+
+  await knex('field_definitions')
+    .where({ objectDefinitionId: contactDetailObject.id })
+    .whereIn('apiName', [
+      'relatedObjectType',
+      'relatedObjectId',
+      'detailType',
+      'label',
+      'value',
+      'isPrimary',
+    ])
+    .update({
+      isSystem: true,
+      updated_at: knex.fn.now(),
+    });
+};

backend/migrations/tenant/20250311000002_add_owner_to_contacts.js

@@ -0,0 +1,62 @@
+exports.up = async function (knex) {
+  // Add ownerId column to contacts
+  await knex.schema.alterTable('contacts', (table) => {
+    table.uuid('ownerId');
+    table
+      .foreign('ownerId')
+      .references('id')
+      .inTable('users')
+      .onDelete('SET NULL');
+    table.index(['ownerId']);
+  });
+
+  // Add ownerId field definition metadata for Contact object
+  const contactObject = await knex('object_definitions')
+    .where('apiName', 'Contact')
+    .first();
+
+  if (contactObject) {
+    const existingField = await knex('field_definitions')
+      .where({
+        objectDefinitionId: contactObject.id,
+        apiName: 'ownerId',
+      })
+      .first();
+
+    if (!existingField) {
+      await knex('field_definitions').insert({
+        id: knex.raw('(UUID())'),
+        objectDefinitionId: contactObject.id,
+        apiName: 'ownerId',
+        label: 'Owner',
+        type: 'Reference',
+        referenceObject: 'User',
+        isSystem: true,
+        isCustom: false,
+        displayOrder: 4,
+        created_at: knex.fn.now(),
+        updated_at: knex.fn.now(),
+      });
+    }
+  }
+};
+
+exports.down = async function (knex) {
+  const contactObject = await knex('object_definitions')
+    .where('apiName', 'Contact')
+    .first();
+
+  if (contactObject) {
+    await knex('field_definitions')
+      .where({
+        objectDefinitionId: contactObject.id,
+        apiName: 'ownerId',
+      })
+      .delete();
+  }
+
+  await knex.schema.alterTable('contacts', (table) => {
+    table.dropForeign(['ownerId']);
+    table.dropColumn('ownerId');
+  });
+};

backend/migrations/tenant/20260301120000_add_approval_engine_tables.js

@@ -0,0 +1,190 @@
+exports.up = async function (knex) {
+  await knex.schema.createTable('approval_definitions', (table) => {
+    table.string('id', 191).primary().defaultTo(knex.raw('(UUID())'));
+    table.string('name', 191).notNullable();
+    table.text('description');
+    table.string('triggerType', 191).notNullable();
+    table.string('targetObjectType', 191);
+    table.json('entryCriteria');
+    table.json('steps');
+    table.json('votingPolicy');
+    table.string('rejectionRule', 191);
+    table.string('materialChangePolicy', 191);
+    table.integer('version').notNullable().defaultTo(1);
+    table.boolean('isActive').notNullable().defaultTo(true);
+    table.timestamp('createdAt').notNullable().defaultTo(knex.fn.now());
+    table.timestamp('updatedAt').notNullable().defaultTo(knex.fn.now());
+  });
+
+  await knex.schema.createTable('approval_requests', (table) => {
+    table.string('id', 191).primary().defaultTo(knex.raw('(UUID())'));
+    table.string('definitionId', 191).notNullable();
+    table.string('status', 191).notNullable().defaultTo('pending');
+    table.string('targetObjectType', 191).notNullable();
+    table.string('targetObjectId', 191).notNullable();
+    table.string('action', 191);
+    table.string('stateFrom', 191);
+    table.string('stateTo', 191);
+    table.json('fieldChanges');
+    table.json('snapshot');
+    table.string('versionHash', 191);
+    table.string('submittedById', 191);
+    table.timestamp('submittedAt');
+    table.string('currentStepKey', 191);
+    table.timestamp('createdAt').notNullable().defaultTo(knex.fn.now());
+    table.timestamp('updatedAt').notNullable().defaultTo(knex.fn.now());
+
+    table.index(['definitionId']);
+    table.index(['targetObjectType', 'targetObjectId']);
+    table.index(['submittedById']);
+    table
+      .foreign('definitionId')
+      .references('id')
+      .inTable('approval_definitions')
+      .onDelete('CASCADE')
+      .onUpdate('CASCADE');
+    table
+      .foreign('submittedById')
+      .references('id')
+      .inTable('users')
+      .onDelete('SET NULL')
+      .onUpdate('CASCADE');
+  });
+
+  await knex.schema.createTable('approval_steps', (table) => {
+    table.string('id', 191).primary().defaultTo(knex.raw('(UUID())'));
+    table.string('requestId', 191).notNullable();
+    table.string('stepKey', 191).notNullable();
+    table.string('name', 191).notNullable();
+    table.integer('stepOrder').notNullable();
+    table.string('status', 191).notNullable().defaultTo('pending');
+    table.json('routing');
+    table.json('voting');
+    table.timestamp('dueAt');
+    table.timestamp('completedAt');
+    table.timestamp('createdAt').notNullable().defaultTo(knex.fn.now());
+    table.timestamp('updatedAt').notNullable().defaultTo(knex.fn.now());
+
+    table.index(['requestId']);
+    table.index(['status']);
+    table
+      .foreign('requestId')
+      .references('id')
+      .inTable('approval_requests')
+      .onDelete('CASCADE')
+      .onUpdate('CASCADE');
+  });
+
+  await knex.schema.createTable('approval_assignments', (table) => {
+    table.string('id', 191).primary().defaultTo(knex.raw('(UUID())'));
+    table.string('stepId', 191).notNullable();
+    table.string('assigneeId', 191).notNullable();
+    table.string('status', 191).notNullable().defaultTo('pending');
+    table.text('response');
+    table.timestamp('respondedAt');
+    table.timestamp('dueAt');
+    table.string('reassignedFromId', 191);
+    table.string('delegatedById', 191);
+    table.timestamp('createdAt').notNullable().defaultTo(knex.fn.now());
+    table.timestamp('updatedAt').notNullable().defaultTo(knex.fn.now());
+
+    table.index(['stepId']);
+    table.index(['assigneeId']);
+    table.index(['status']);
+    table
+      .foreign('stepId')
+      .references('id')
+      .inTable('approval_steps')
+      .onDelete('CASCADE')
+      .onUpdate('CASCADE');
+    table
+      .foreign('assigneeId')
+      .references('id')
+      .inTable('users')
+      .onDelete('RESTRICT')
+      .onUpdate('CASCADE');
+    table
+      .foreign('reassignedFromId')
+      .references('id')
+      .inTable('users')
+      .onDelete('SET NULL')
+      .onUpdate('CASCADE');
+    table
+      .foreign('delegatedById')
+      .references('id')
+      .inTable('users')
+      .onDelete('SET NULL')
+      .onUpdate('CASCADE');
+  });
+
+  await knex.schema.createTable('approval_effect_logs', (table) => {
+    table.string('id', 191).primary().defaultTo(knex.raw('(UUID())'));
+    table.string('requestId', 191).notNullable();
+    table.string('effectKey', 191).notNullable();
+    table.string('status', 191).notNullable().defaultTo('success');
+    table.json('response');
+    table.timestamp('executedAt').notNullable().defaultTo(knex.fn.now());
+
+    table.unique(['requestId', 'effectKey']);
+    table.index(['requestId']);
+    table
+      .foreign('requestId')
+      .references('id')
+      .inTable('approval_requests')
+      .onDelete('CASCADE')
+      .onUpdate('CASCADE');
+  });
+
+  await knex.schema.createTable('tasks', (table) => {
+    table.string('id', 191).primary().defaultTo(knex.raw('(UUID())'));
+    table.string('title', 191).notNullable();
+    table.text('description');
+    table.string('status', 191).notNullable().defaultTo('open');
+    table.string('priority', 191);
+    table.timestamp('dueAt');
+    table.string('assignedToId', 191);
+    table.string('relatedObjectType', 191);
+    table.string('relatedObjectId', 191);
+    table.timestamp('createdAt').notNullable().defaultTo(knex.fn.now());
+    table.timestamp('updatedAt').notNullable().defaultTo(knex.fn.now());
+
+    table.index(['assignedToId']);
+    table.index(['relatedObjectType', 'relatedObjectId']);
+    table
+      .foreign('assignedToId')
+      .references('id')
+      .inTable('users')
+      .onDelete('SET NULL')
+      .onUpdate('CASCADE');
+  });
+
+  await knex.schema.createTable('activity_logs', (table) => {
+    table.string('id', 191).primary().defaultTo(knex.raw('(UUID())'));
+    table.string('action', 191).notNullable();
+    table.string('subjectType', 191).notNullable();
+    table.string('subjectId', 191).notNullable();
+    table.text('description');
+    table.json('properties');
+    table.string('causerId', 191);
+    table.timestamp('createdAt').notNullable().defaultTo(knex.fn.now());
+
+    table.index(['subjectType', 'subjectId']);
+    table.index(['causerId']);
+    table
+      .foreign('causerId')
+      .references('id')
+      .inTable('users')
+      .onDelete('SET NULL')
+      .onUpdate('CASCADE');
+  });
+};
+
+exports.down = async function (knex) {
+  await knex.schema.dropTableIfExists('activity_logs');
+  await knex.schema.dropTableIfExists('tasks');
+  await knex.schema.dropTableIfExists('approval_effect_logs');
+  await knex.schema.dropTableIfExists('approval_assignments');
+  await knex.schema.dropTableIfExists('approval_steps');
+  await knex.schema.dropTableIfExists('approval_requests');
+  await knex.schema.dropTableIfExists('approval_definitions');
+};

backend/package.json

@@ -26,6 +26,11 @@
     "migrate:all-tenants": "ts-node -r tsconfig-paths/register scripts/migrate-all-tenants.ts"
   },
   "dependencies": {
+    "@casl/ability": "^6.7.5",
+    "@fastify/websocket": "^10.0.1",
+    "@langchain/core": "^1.1.12",
+    "@langchain/langgraph": "^1.0.15",
+    "@langchain/openai": "^1.2.1",
     "@nestjs/bullmq": "^10.1.0",
     "@nestjs/common": "^10.3.0",
     "@nestjs/config": "^3.1.1",
@@ -33,6 +38,9 @@
     "@nestjs/jwt": "^10.2.0",
     "@nestjs/passport": "^10.0.3",
     "@nestjs/platform-fastify": "^10.3.0",
+    "@nestjs/platform-socket.io": "^10.4.20",
+    "@nestjs/serve-static": "^4.0.2",
+    "@nestjs/websockets": "^10.4.20",
     "@prisma/client": "^5.8.0",
     "bcrypt": "^5.1.1",
     "bullmq": "^5.1.0",
@@ -40,12 +48,17 @@
     "class-validator": "^0.14.1",
     "ioredis": "^5.3.2",
     "knex": "^3.1.0",
+    "langchain": "^1.2.7",
     "mysql2": "^3.15.3",
     "objection": "^3.1.5",
+    "openai": "^6.15.0",
     "passport": "^0.7.0",
     "passport-jwt": "^4.0.1",
     "reflect-metadata": "^0.2.1",
-    "rxjs": "^7.8.1"
+    "rxjs": "^7.8.1",
+    "socket.io": "^4.8.3",
+    "twilio": "^5.11.1",
+    "ws": "^8.18.3"
   },
   "devDependencies": {
     "@nestjs/cli": "^10.3.0",

backend/prisma/migrations/20260103054426_add_integrations_config/migration.sql

@@ -0,0 +1,2 @@
+-- AlterTable
+ALTER TABLE `tenants` ADD COLUMN `integrationsConfig` JSON NULL;

backend/prisma/schema-central.prisma

@@ -24,17 +24,18 @@ model User {
 }
 
 model Tenant {
-  id          String   @id @default(cuid())
-  name        String
-  slug        String   @unique // Used for identification
-  dbHost      String   // Database host
-  dbPort      Int      @default(3306)
-  dbName      String   // Database name
-  dbUsername  String   // Database username
-  dbPassword  String   // Encrypted database password
-  status      String   @default("active") // active, suspended, deleted
-  createdAt   DateTime @default(now())
-  updatedAt   DateTime @updatedAt
+  id                 String   @id @default(cuid())
+  name               String
+  slug               String   @unique // Used for identification
+  dbHost             String   // Database host
+  dbPort             Int      @default(3306)
+  dbName             String   // Database name
+  dbUsername         String   // Database username
+  dbPassword         String   // Encrypted database password
+  integrationsConfig Json?    // Encrypted JSON config for external services (Twilio, OpenAI, etc.)
+  status             String   @default("active") // active, suspended, deleted
+  createdAt          DateTime @default(now())
+  updatedAt          DateTime @updatedAt
 
   domains     Domain[]
 

backend/prisma/schema.prisma

@@ -125,6 +125,7 @@ model FieldDefinition {
   isSystem             Boolean  @default(false)
   isCustom             Boolean  @default(true)
   displayOrder         Int      @default(0)
+  uiMetadata           Json?    @map("ui_metadata")
   createdAt            DateTime @default(now()) @map("created_at")
   updatedAt            DateTime @updatedAt @map("updated_at")
 
@@ -144,12 +145,42 @@ model Account {
   createdAt DateTime @default(now())
   updatedAt DateTime @updatedAt
 
-  owner  User   @relation(fields: [ownerId], references: [id])
+  owner    User     @relation(fields: [ownerId], references: [id])
+  contacts Contact[]
 
   @@index([ownerId])
   @@map("accounts")
 }
 
+model Contact {
+  id        String   @id @default(uuid())
+  firstName String
+  lastName  String
+  accountId String
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+
+  account Account @relation(fields: [accountId], references: [id], onDelete: Cascade)
+
+  @@index([accountId])
+  @@map("contacts")
+}
+
+model ContactDetail {
+  id                String   @id @default(uuid())
+  relatedObjectType String
+  relatedObjectId   String
+  detailType        String
+  label             String?
+  value             String
+  isPrimary         Boolean  @default(false)
+  createdAt         DateTime @default(now())
+  updatedAt         DateTime @updatedAt
+
+  @@index([relatedObjectType, relatedObjectId])
+  @@map("contact_details")
+}
+
 // Application Builder
 model App {
   id          String   @id @default(uuid())

backend/scripts/seed-default-roles.ts

@@ -0,0 +1,181 @@
+import { Knex } from 'knex';
+import * as knexLib from 'knex';
+
+/**
+ * Create a Knex connection for tenant database
+ */
+function createKnexConnection(database: string): Knex {
+  return knexLib.default({
+    client: 'mysql2',
+    connection: {
+      host: process.env.DB_HOST || 'db',
+      port: parseInt(process.env.DB_PORT || '3306'),
+      user: 'root',
+      password: 'asjdnfqTash37faggT',
+      database: database,
+    },
+  });
+}
+
+interface RoleWithPermissions {
+  name: string;
+  description: string;
+  objectPermissions: {
+    [objectApiName: string]: {
+      canCreate: boolean;
+      canRead: boolean;
+      canEdit: boolean;
+      canDelete: boolean;
+      canViewAll: boolean;
+      canModifyAll: boolean;
+    };
+  };
+}
+
+const DEFAULT_ROLES: RoleWithPermissions[] = [
+  {
+    name: 'System Administrator',
+    description: 'Full access to all objects and records. Can view and modify all data.',
+    objectPermissions: {
+      '*': {
+        canCreate: true,
+        canRead: true,
+        canEdit: true,
+        canDelete: true,
+        canViewAll: true,
+        canModifyAll: true,
+      },
+    },
+  },
+  {
+    name: 'Standard User',
+    description: 'Can create, read, edit, and delete own records. Respects OWD settings.',
+    objectPermissions: {
+      '*': {
+        canCreate: true,
+        canRead: true,
+        canEdit: true,
+        canDelete: true,
+        canViewAll: false,
+        canModifyAll: false,
+      },
+    },
+  },
+  {
+    name: 'Read Only',
+    description: 'Can only read records based on OWD settings. No create, edit, or delete.',
+    objectPermissions: {
+      '*': {
+        canCreate: false,
+        canRead: true,
+        canEdit: false,
+        canDelete: false,
+        canViewAll: false,
+        canModifyAll: false,
+      },
+    },
+  },
+];
+
+async function seedRolesForTenant(knex: Knex, tenantName: string) {
+  console.log(`\n🌱 Seeding roles for tenant: ${tenantName}`);
+
+  // Get all object definitions
+  const objectDefinitions = await knex('object_definitions').select('id', 'apiName');
+
+  for (const roleData of DEFAULT_ROLES) {
+    // Check if role already exists
+    const existingRole = await knex('roles')
+      .where({ name: roleData.name })
+      .first();
+
+    let roleId: string;
+
+    if (existingRole) {
+      console.log(`   ℹ️  Role "${roleData.name}" already exists, skipping...`);
+      roleId = existingRole.id;
+    } else {
+      // Create role
+      await knex('roles').insert({
+        name: roleData.name,
+        guardName: 'api',
+        description: roleData.description,
+      });
+
+      // Get the inserted role
+      const newRole = await knex('roles')
+        .where({ name: roleData.name })
+        .first();
+
+      roleId = newRole.id;
+      console.log(`   ✅ Created role: ${roleData.name}`);
+    }
+
+    // Create object permissions for all objects
+    const wildcardPermissions = roleData.objectPermissions['*'];
+    
+    for (const objectDef of objectDefinitions) {
+      // Check if permission already exists
+      const existingPermission = await knex('role_object_permissions')
+        .where({
+          roleId: roleId,
+          objectDefinitionId: objectDef.id,
+        })
+        .first();
+
+      if (!existingPermission) {
+        await knex('role_object_permissions').insert({
+          roleId: roleId,
+          objectDefinitionId: objectDef.id,
+          canCreate: wildcardPermissions.canCreate,
+          canRead: wildcardPermissions.canRead,
+          canEdit: wildcardPermissions.canEdit,
+          canDelete: wildcardPermissions.canDelete,
+          canViewAll: wildcardPermissions.canViewAll,
+          canModifyAll: wildcardPermissions.canModifyAll,
+        });
+      }
+    }
+
+    console.log(`   📋 Set permissions for ${objectDefinitions.length} objects`);
+  }
+}
+
+async function seedAllTenants() {
+  console.log('🚀 Starting role seeding for all tenants...\n');
+
+  // For now, seed the main tenant database
+  const databases = ['tenant_tenant1'];
+
+  let successCount = 0;
+  let errorCount = 0;
+
+  for (const database of databases) {
+    try {
+      const knex = createKnexConnection(database);
+      await seedRolesForTenant(knex, database);
+      await knex.destroy();
+      successCount++;
+    } catch (error) {
+      console.error(`❌ ${database}: Seeding failed:`, error.message);
+      errorCount++;
+    }
+  }
+
+  console.log('\n============================================================');
+  console.log('📊 Seeding Summary');
+  console.log('============================================================');
+  console.log(`✅ Successful: ${successCount}`);
+  console.log(`❌ Failed: ${errorCount}`);
+
+  if (errorCount === 0) {
+    console.log('\n🎉 All tenant roles seeded successfully!');
+  }
+}
+
+seedAllTenants()
+  .then(() => process.exit(0))
+  .catch((error) => {
+    console.error('Unhandled error:', error);
+    process.exit(1);
+  });

backend/src/activity-log/activity-log.controller.ts

@@ -0,0 +1,42 @@
+import { Controller, Get, Post, Body, Query, UseGuards } from '@nestjs/common';
+import { ActivityLogService } from './activity-log.service';
+import { JwtAuthGuard } from '../auth/jwt-auth.guard';
+import { TenantId } from '../tenant/tenant.decorator';
+
+@Controller('activity-log')
+@UseGuards(JwtAuthGuard)
+export class ActivityLogController {
+  constructor(private activityLogService: ActivityLogService) {}
+
+  @Get()
+  async listActivities(
+    @TenantId() tenantId: string,
+    @Query('subjectType') subjectType?: string,
+    @Query('subjectId') subjectId?: string,
+    @Query('causerId') causerId?: string,
+    @Query('action') action?: string,
+  ) {
+    return this.activityLogService.listActivities(tenantId, {
+      subjectType,
+      subjectId,
+      causerId,
+      action,
+    });
+  }
+
+  @Post()
+  async createActivity(
+    @TenantId() tenantId: string,
+    @Body()
+    body: {
+      action: string;
+      subjectType: string;
+      subjectId: string;
+      description?: string;
+      properties?: Record<string, any>;
+      causerId?: string;
+    },
+  ) {
+    return this.activityLogService.logActivity(tenantId, body);
+  }
+}

backend/src/activity-log/activity-log.module.ts

@@ -0,0 +1,12 @@
+import { Module } from '@nestjs/common';
+import { ActivityLogController } from './activity-log.controller';
+import { ActivityLogService } from './activity-log.service';
+import { TenantModule } from '../tenant/tenant.module';
+
+@Module({
+  imports: [TenantModule],
+  controllers: [ActivityLogController],
+  providers: [ActivityLogService],
+  exports: [ActivityLogService],
+})
+export class ActivityLogModule {}

backend/src/activity-log/activity-log.service.ts

@@ -0,0 +1,54 @@
+import { Injectable } from '@nestjs/common';
+import { TenantDatabaseService } from '../tenant/tenant-database.service';
+import { ActivityLog } from '../models/activity-log.model';
+
+export interface ActivityLogInput {
+  action: string;
+  subjectType: string;
+  subjectId: string;
+  description?: string;
+  properties?: Record<string, any>;
+  causerId?: string | null;
+}
+
+@Injectable()
+export class ActivityLogService {
+  constructor(private tenantDbService: TenantDatabaseService) {}
+
+  private async getKnex(tenantId: string) {
+    const resolved = await this.tenantDbService.resolveTenantId(tenantId);
+    return this.tenantDbService.getTenantKnexById(resolved);
+  }
+
+  async logActivity(tenantId: string, input: ActivityLogInput) {
+    const knex = await this.getKnex(tenantId);
+    return ActivityLog.query(knex).insert({
+      action: input.action,
+      subjectType: input.subjectType,
+      subjectId: input.subjectId,
+      description: input.description,
+      properties: input.properties ?? null,
+      causerId: input.causerId ?? null,
+    });
+  }
+
+  async listActivities(
+    tenantId: string,
+    filters: {
+    subjectType?: string;
+    subjectId?: string;
+    causerId?: string;
+    action?: string;
+  },
+  ) {
+    const knex = await this.getKnex(tenantId);
+    return ActivityLog.query(knex)
+      .modify((qb) => {
+        if (filters.subjectType) qb.where('subjectType', filters.subjectType);
+        if (filters.subjectId) qb.where('subjectId', filters.subjectId);
+        if (filters.causerId) qb.where('causerId', filters.causerId);
+        if (filters.action) qb.where('action', filters.action);
+      })
+      .orderBy('createdAt', 'desc');
+  }
+}

backend/src/ai-assistant/ai-assistant.controller.ts

@@ -0,0 +1,41 @@
+import { Body, Controller, Post, UseGuards } from '@nestjs/common';
+import { JwtAuthGuard } from '../auth/jwt-auth.guard';
+import { CurrentUser } from '../auth/current-user.decorator';
+import { TenantId } from '../tenant/tenant.decorator';
+import { AiAssistantService } from './ai-assistant.service';
+import { AiChatRequestDto } from './dto/ai-chat.dto';
+import { AiSearchRequestDto } from './dto/ai-search.dto';
+
+@Controller('ai')
+@UseGuards(JwtAuthGuard)
+export class AiAssistantController {
+  constructor(private readonly aiAssistantService: AiAssistantService) {}
+
+  @Post('chat')
+  async chat(
+    @TenantId() tenantId: string,
+    @CurrentUser() user: any,
+    @Body() payload: AiChatRequestDto,
+  ) {
+    return this.aiAssistantService.handleChat(
+      tenantId,
+      user.userId,
+      payload.message,
+      payload.history,
+      payload.context,
+    );
+  }
+
+  @Post('search')
+  async search(
+    @TenantId() tenantId: string,
+    @CurrentUser() user: any,
+    @Body() payload: AiSearchRequestDto,
+  ) {
+    return this.aiAssistantService.searchRecords(
+      tenantId,
+      user.userId,
+      payload,
+    );
+  }
+}

backend/src/ai-assistant/ai-assistant.module.ts

@@ -0,0 +1,14 @@
+import { Module } from '@nestjs/common';
+import { AiAssistantController } from './ai-assistant.controller';
+import { AiAssistantService } from './ai-assistant.service';
+import { ObjectModule } from '../object/object.module';
+import { PageLayoutModule } from '../page-layout/page-layout.module';
+import { TenantModule } from '../tenant/tenant.module';
+import { MeilisearchModule } from '../search/meilisearch.module';
+
+@Module({
+  imports: [ObjectModule, PageLayoutModule, TenantModule, MeilisearchModule],
+  controllers: [AiAssistantController],
+  providers: [AiAssistantService],
+})
+export class AiAssistantModule {}

backend/src/ai-assistant/ai-assistant.types.ts

@@ -0,0 +1,32 @@
+export interface AiChatMessage {
+  role: 'user' | 'assistant';
+  text: string;
+}
+
+export interface AiChatContext {
+  objectApiName?: string;
+  view?: string;
+  recordId?: string;
+  route?: string;
+}
+
+export interface AiAssistantReply {
+  reply: string;
+  action?: 'create_record' | 'collect_fields' | 'clarify';
+  missingFields?: string[];
+  record?: any;
+}
+
+export interface AiAssistantState {
+  message: string;
+  history?: AiChatMessage[];
+  context: AiChatContext;
+  objectDefinition?: any;
+  pageLayout?: any;
+  extractedFields?: Record<string, any>;
+  requiredFields?: string[];
+  missingFields?: string[];
+  action?: AiAssistantReply['action'];
+  record?: any;
+  reply?: string;
+}

backend/src/ai-assistant/dto/ai-chat.dto.ts

@@ -0,0 +1,36 @@
+import { Type } from 'class-transformer';
+import { IsNotEmpty, IsObject, IsOptional, IsString, ValidateNested } from 'class-validator';
+import { AiChatMessageDto } from './ai-chat.message.dto';
+
+export class AiChatContextDto {
+  @IsOptional()
+  @IsString()
+  objectApiName?: string;
+
+  @IsOptional()
+  @IsString()
+  view?: string;
+
+  @IsOptional()
+  @IsString()
+  recordId?: string;
+
+  @IsOptional()
+  @IsString()
+  route?: string;
+}
+
+export class AiChatRequestDto {
+  @IsString()
+  @IsNotEmpty()
+  message: string;
+
+  @IsOptional()
+  @IsObject()
+  context?: AiChatContextDto;
+
+  @IsOptional()
+  @ValidateNested({ each: true })
+  @Type(() => AiChatMessageDto)
+  history?: AiChatMessageDto[];
+}

backend/src/ai-assistant/dto/ai-chat.message.dto.ts

@@ -0,0 +1,10 @@
+import { IsIn, IsNotEmpty, IsString } from 'class-validator';
+
+export class AiChatMessageDto {
+  @IsIn(['user', 'assistant'])
+  role: 'user' | 'assistant';
+
+  @IsString()
+  @IsNotEmpty()
+  text: string;
+}

backend/src/ai-assistant/dto/ai-search.dto.ts

@@ -0,0 +1,22 @@
+import { Type } from 'class-transformer';
+import { IsNotEmpty, IsOptional, IsString, IsNumber } from 'class-validator';
+
+export class AiSearchRequestDto {
+  @IsString()
+  @IsNotEmpty()
+  objectApiName: string;
+
+  @IsString()
+  @IsNotEmpty()
+  query: string;
+
+  @IsOptional()
+  @Type(() => Number)
+  @IsNumber()
+  page?: number;
+
+  @IsOptional()
+  @Type(() => Number)
+  @IsNumber()
+  pageSize?: number;
+}

backend/src/app.module.ts

@@ -7,6 +7,11 @@ import { RbacModule } from './rbac/rbac.module';
 import { ObjectModule } from './object/object.module';
 import { AppBuilderModule } from './app-builder/app-builder.module';
 import { PageLayoutModule } from './page-layout/page-layout.module';
+import { VoiceModule } from './voice/voice.module';
+import { AiAssistantModule } from './ai-assistant/ai-assistant.module';
+import { ActivityLogModule } from './activity-log/activity-log.module';
+import { TaskModule } from './task/task.module';
+import { ApprovalModule } from './approval/approval.module';
 
 @Module({
   imports: [
@@ -20,6 +25,11 @@ import { PageLayoutModule } from './page-layout/page-layout.module';
     ObjectModule,
     AppBuilderModule,
     PageLayoutModule,
+    VoiceModule,
+    AiAssistantModule,
+    ActivityLogModule,
+    TaskModule,
+    ApprovalModule,
   ],
 })
 export class AppModule {}

backend/src/approval/approval-request.controller.ts

@@ -0,0 +1,54 @@
+import { Body, Controller, Get, Patch, Param, Post, UseGuards } from '@nestjs/common';
+import { ApprovalService } from './approval.service';
+import { JwtAuthGuard } from '../auth/jwt-auth.guard';
+import { TenantId } from '../tenant/tenant.decorator';
+
+@Controller('approvals')
+@UseGuards(JwtAuthGuard)
+export class ApprovalRequestController {
+  constructor(private approvalService: ApprovalService) {}
+
+  @Get()
+  async listRequests(@TenantId() tenantId: string) {
+    return this.approvalService.listRequests(tenantId);
+  }
+
+  @Post()
+  async createRequest(
+    @TenantId() tenantId: string,
+    @Body()
+    body: {
+      definitionId: string;
+      targetObjectType: string;
+      targetObjectId: string;
+      action?: string;
+      stateFrom?: string;
+      stateTo?: string;
+      fieldChanges?: Record<string, any>;
+      snapshot?: Record<string, any>;
+      submittedById?: string;
+    },
+  ) {
+    return this.approvalService.createRequest(tenantId, body);
+  }
+
+  @Patch('assignments/:assignmentId')
+  async updateAssignmentStatus(
+    @TenantId() tenantId: string,
+    @Param('assignmentId') assignmentId: string,
+    @Body()
+    body: {
+      status: 'approved' | 'rejected';
+      response?: string;
+      actedById?: string;
+    },
+  ) {
+    return this.approvalService.updateAssignmentStatus(
+      tenantId,
+      assignmentId,
+      body.status,
+      body.response,
+      body.actedById,
+    );
+  }
+}

backend/src/approval/approval-setup.controller.ts

@@ -0,0 +1,56 @@
+import { Body, Controller, Get, Param, Patch, Post, UseGuards } from '@nestjs/common';
+import { ApprovalService } from './approval.service';
+import { JwtAuthGuard } from '../auth/jwt-auth.guard';
+import { TenantId } from '../tenant/tenant.decorator';
+
+@Controller('setup/approvals')
+@UseGuards(JwtAuthGuard)
+export class ApprovalSetupController {
+  constructor(private approvalService: ApprovalService) {}
+
+  @Get()
+  async listDefinitions(@TenantId() tenantId: string) {
+    return this.approvalService.listDefinitions(tenantId);
+  }
+
+  @Post()
+  async createDefinition(
+    @TenantId() tenantId: string,
+    @Body()
+    body: {
+      name: string;
+      description?: string;
+      triggerType: string;
+      targetObjectType?: string;
+      entryCriteria?: Record<string, any>;
+      steps?: Array<Record<string, any>>;
+      votingPolicy?: Record<string, any>;
+      rejectionRule?: string;
+      materialChangePolicy?: string;
+      isActive?: boolean;
+    },
+  ) {
+    return this.approvalService.createDefinition(tenantId, body);
+  }
+
+  @Patch(':definitionId')
+  async updateDefinition(
+    @TenantId() tenantId: string,
+    @Param('definitionId') definitionId: string,
+    @Body()
+    body: {
+      name?: string;
+      description?: string;
+      triggerType?: string;
+      targetObjectType?: string;
+      entryCriteria?: Record<string, any>;
+      steps?: Array<Record<string, any>>;
+      votingPolicy?: Record<string, any>;
+      rejectionRule?: string;
+      materialChangePolicy?: string;
+      isActive?: boolean;
+    },
+  ) {
+    return this.approvalService.updateDefinition(tenantId, definitionId, body);
+  }
+}

backend/src/approval/approval.module.ts

@@ -0,0 +1,14 @@
+import { Module } from '@nestjs/common';
+import { ApprovalService } from './approval.service';
+import { ApprovalSetupController } from './approval-setup.controller';
+import { ApprovalRequestController } from './approval-request.controller';
+import { ActivityLogModule } from '../activity-log/activity-log.module';
+import { TaskModule } from '../task/task.module';
+import { TenantModule } from '../tenant/tenant.module';
+
+@Module({
+  imports: [TenantModule, ActivityLogModule, TaskModule],
+  controllers: [ApprovalSetupController, ApprovalRequestController],
+  providers: [ApprovalService],
+})
+export class ApprovalModule {}

backend/src/approval/approval.service.ts

@@ -0,0 +1,402 @@
+import { Injectable, NotFoundException } from '@nestjs/common';
+import { createHash } from 'crypto';
+import { ActivityLogService } from '../activity-log/activity-log.service';
+import { TaskService } from '../task/task.service';
+import { TenantDatabaseService } from '../tenant/tenant-database.service';
+import { ApprovalDefinition } from '../models/approval-definition.model';
+import { ApprovalRequest } from '../models/approval-request.model';
+import { ApprovalStep } from '../models/approval-step.model';
+import { ApprovalAssignment } from '../models/approval-assignment.model';
+import { ApprovalEffectLog } from '../models/approval-effect-log.model';
+
+interface ApprovalDefinitionInput {
+  name: string;
+  description?: string;
+  triggerType: string;
+  targetObjectType?: string;
+  entryCriteria?: Record<string, any> | null;
+  steps?: Array<Record<string, any>> | null;
+  votingPolicy?: Record<string, any> | null;
+  rejectionRule?: string | null;
+  materialChangePolicy?: string | null;
+  isActive?: boolean;
+}
+
+interface ApprovalRequestInput {
+  definitionId: string;
+  targetObjectType: string;
+  targetObjectId: string;
+  action?: string;
+  stateFrom?: string;
+  stateTo?: string;
+  fieldChanges?: Record<string, any> | null;
+  snapshot?: Record<string, any> | null;
+  submittedById?: string | null;
+}
+
+@Injectable()
+export class ApprovalService {
+  constructor(
+    private tenantDbService: TenantDatabaseService,
+    private activityLogService: ActivityLogService,
+    private taskService: TaskService,
+  ) {}
+
+  private async getKnex(tenantId: string) {
+    const resolved = await this.tenantDbService.resolveTenantId(tenantId);
+    return this.tenantDbService.getTenantKnexById(resolved);
+  }
+
+  async listDefinitions(tenantId: string) {
+    const knex = await this.getKnex(tenantId);
+    return ApprovalDefinition.query(knex).orderBy('createdAt', 'desc');
+  }
+
+  async createDefinition(tenantId: string, input: ApprovalDefinitionInput) {
+    const knex = await this.getKnex(tenantId);
+    const definition = await ApprovalDefinition.query(knex).insert({
+      name: input.name,
+      description: input.description,
+      triggerType: input.triggerType,
+      targetObjectType: input.targetObjectType,
+      entryCriteria: input.entryCriteria ?? null,
+      steps: input.steps ?? null,
+      votingPolicy: input.votingPolicy ?? null,
+      rejectionRule: input.rejectionRule ?? null,
+      materialChangePolicy: input.materialChangePolicy ?? null,
+      isActive: input.isActive ?? true,
+      version: 1,
+    });
+
+    await this.activityLogService.logActivity(tenantId, {
+      action: 'approval_definition.created',
+      subjectType: 'ApprovalDefinition',
+      subjectId: definition.id,
+      description: `Created approval definition ${definition.name}`,
+    });
+
+    return definition;
+  }
+
+  async updateDefinition(
+    tenantId: string,
+    definitionId: string,
+    input: Partial<ApprovalDefinitionInput>,
+  ) {
+    const knex = await this.getKnex(tenantId);
+    const existing = await ApprovalDefinition.query(knex).findById(definitionId);
+
+    if (!existing) {
+      throw new NotFoundException('Approval definition not found');
+    }
+
+    const needsVersionBump =
+      input.entryCriteria !== undefined ||
+      input.steps !== undefined ||
+      input.votingPolicy !== undefined ||
+      input.rejectionRule !== undefined ||
+      input.materialChangePolicy !== undefined;
+
+    const definition = await ApprovalDefinition.query(knex).patchAndFetchById(definitionId, {
+      name: input.name,
+      description: input.description,
+      triggerType: input.triggerType,
+      targetObjectType: input.targetObjectType,
+      entryCriteria: input.entryCriteria ?? undefined,
+      steps: input.steps ?? undefined,
+      votingPolicy: input.votingPolicy ?? undefined,
+      rejectionRule: input.rejectionRule ?? undefined,
+      materialChangePolicy: input.materialChangePolicy ?? undefined,
+      isActive: input.isActive,
+      version: needsVersionBump ? existing.version + 1 : existing.version,
+    });
+
+    await this.activityLogService.logActivity(tenantId, {
+      action: 'approval_definition.updated',
+      subjectType: 'ApprovalDefinition',
+      subjectId: definition.id,
+      description: `Updated approval definition ${definition.name}`,
+    });
+
+    return definition;
+  }
+
+  async listRequests(tenantId: string) {
+    const knex = await this.getKnex(tenantId);
+    return ApprovalRequest.query(knex)
+      .withGraphFetched('[steps.assignments,definition]')
+      .orderBy('createdAt', 'desc');
+  }
+
+  async createRequest(tenantId: string, input: ApprovalRequestInput) {
+    const knex = await this.getKnex(tenantId);
+    const definition = await ApprovalDefinition.query(knex).findById(input.definitionId);
+
+    if (!definition) {
+      throw new NotFoundException('Approval definition not found');
+    }
+
+    const versionHash = this.createVersionHash({
+      snapshot: input.snapshot ?? {},
+      fieldChanges: input.fieldChanges ?? {},
+      definitionVersion: definition.version,
+    });
+
+    const request = await ApprovalRequest.query(knex).insertAndFetch({
+      definitionId: definition.id,
+      status: 'pending',
+      targetObjectType: input.targetObjectType,
+      targetObjectId: input.targetObjectId,
+      action: input.action,
+      stateFrom: input.stateFrom,
+      stateTo: input.stateTo,
+      fieldChanges: input.fieldChanges ?? null,
+      snapshot: input.snapshot ?? null,
+      versionHash,
+      submittedById: input.submittedById ?? null,
+      submittedAt: new Date(),
+    });
+
+    const stepConfigs = Array.isArray(definition.steps) ? definition.steps : [];
+    for (const [index, stepConfig] of stepConfigs.entries()) {
+      const stepKey = stepConfig.key || `step-${index + 1}`;
+      const step = await ApprovalStep.query(knex).insertAndFetch({
+        requestId: request.id,
+        stepKey,
+        name: stepConfig.name || `Step ${index + 1}`,
+        stepOrder: stepConfig.order ?? index + 1,
+        status: 'pending',
+        routing: stepConfig.routing ?? null,
+        voting: stepConfig.voting ?? null,
+        dueAt: stepConfig.dueAt ? new Date(stepConfig.dueAt) : null,
+      });
+
+      const assignees: string[] = Array.isArray(stepConfig.assignees)
+        ? stepConfig.assignees
+        : [];
+
+      for (const assigneeId of assignees) {
+        const assignment = await ApprovalAssignment.query(knex).insertAndFetch({
+          stepId: step.id,
+          assigneeId,
+          status: 'pending',
+          dueAt: stepConfig.dueAt ? new Date(stepConfig.dueAt) : null,
+        });
+
+        await this.taskService.createTask(tenantId, {
+          title: `Approval needed: ${definition.name}`,
+          description: `Approval step ${step.name} requires your review.`,
+          dueAt: stepConfig.dueAt ?? undefined,
+          assignedToId: assigneeId,
+          relatedObjectType: 'ApprovalAssignment',
+          relatedObjectId: assignment.id,
+        });
+
+        await this.activityLogService.logActivity(tenantId, {
+          action: 'approval_assignment.created',
+          subjectType: 'ApprovalAssignment',
+          subjectId: assignment.id,
+          description: `Assignment created for approval step ${step.name}`,
+          causerId: input.submittedById ?? undefined,
+          properties: {
+            requestId: request.id,
+            stepId: step.id,
+          },
+        });
+      }
+    }
+
+    await this.activityLogService.logActivity(tenantId, {
+      action: 'approval_request.created',
+      subjectType: 'ApprovalRequest',
+      subjectId: request.id,
+      description: `Created approval request for ${input.targetObjectType}`,
+      causerId: input.submittedById ?? undefined,
+      properties: {
+        definitionId: definition.id,
+        targetObjectId: input.targetObjectId,
+      },
+    });
+
+    return request;
+  }
+
+  async updateAssignmentStatus(
+    tenantId: string,
+    assignmentId: string,
+    status: 'approved' | 'rejected',
+    response?: string,
+    actedById?: string,
+  ) {
+    const knex = await this.getKnex(tenantId);
+    const assignment = await ApprovalAssignment.query(knex)
+      .findById(assignmentId)
+      .withGraphFetched('step.request');
+
+    if (!assignment) {
+      throw new NotFoundException('Approval assignment not found');
+    }
+
+    const updatedAssignment = await ApprovalAssignment.query(knex).patchAndFetchById(
+      assignmentId,
+      {
+        status,
+        response,
+        respondedAt: new Date(),
+      },
+    );
+
+    await this.taskService.updateTaskByRelated(
+      tenantId,
+      'ApprovalAssignment',
+      assignmentId,
+      {
+        status: 'completed',
+      },
+    );
+
+    await this.activityLogService.logActivity(tenantId, {
+      action: `approval_assignment.${status}`,
+      subjectType: 'ApprovalAssignment',
+      subjectId: assignmentId,
+      description: `Assignment ${status}`,
+      causerId: actedById ?? assignment.assigneeId,
+      properties: {
+        stepId: assignment.stepId,
+        requestId: assignment.step?.requestId,
+      },
+    });
+
+    await this.evaluateStepCompletion(
+      tenantId,
+      assignment.stepId,
+      actedById ?? assignment.assigneeId,
+    );
+
+    return updatedAssignment;
+  }
+
+  private async evaluateStepCompletion(tenantId: string, stepId: string, actedById?: string) {
+    const knex = await this.getKnex(tenantId);
+    const step = await ApprovalStep.query(knex)
+      .findById(stepId)
+      .withGraphFetched('[assignments, request.[definition,steps]]');
+
+    if (!step) {
+      return;
+    }
+
+    const voting = (step.voting as Record<string, any>) || {};
+    const rule = voting.type || 'unanimous';
+    const rejectionRule = voting.rejectionRule || step.request?.definition?.rejectionRule || 'any';
+
+    const approvals = (step.assignments || []).filter((assignment) => assignment.status === 'approved');
+    const rejections = (step.assignments || []).filter((assignment) => assignment.status === 'rejected');
+    const totalAssignments = step.assignments?.length || 1;
+
+    if (rejections.length > 0 && rejectionRule === 'any') {
+      await this.completeStep(tenantId, step, 'rejected', actedById);
+      await this.completeRequestIfNeeded(tenantId, step.requestId, 'rejected', actedById);
+      return;
+    }
+
+    const approved = this.checkApprovalRule(rule, approvals.length, totalAssignments, voting.threshold);
+
+    if (approved) {
+      await this.completeStep(tenantId, step, 'approved', actedById);
+      await this.completeRequestIfNeeded(tenantId, step.requestId, 'approved', actedById);
+    }
+  }
+
+  private checkApprovalRule(rule: string, approvals: number, total: number, threshold?: number) {
+    if (rule === 'majority') {
+      return approvals > total / 2;
+    }
+    if (rule === 'k-of-n') {
+      const required = threshold ?? total;
+      return approvals >= required;
+    }
+    return approvals === total;
+  }
+
+  private async completeStep(
+    tenantId: string,
+    step: { id: string; status: string; requestId: string; name: string },
+    status: string,
+    actedById?: string,
+  ) {
+    const knex = await this.getKnex(tenantId);
+    if (step.status === status) {
+      return;
+    }
+
+    await ApprovalStep.query(knex).patchAndFetchById(step.id, {
+      status,
+      completedAt: new Date(),
+    });
+
+    await this.activityLogService.logActivity(tenantId, {
+      action: `approval_step.${status}`,
+      subjectType: 'ApprovalStep',
+      subjectId: step.id,
+      description: `Step ${step.name} marked ${status}`,
+      causerId: actedById,
+      properties: { requestId: step.requestId },
+    });
+  }
+
+  private async completeRequestIfNeeded(
+    tenantId: string,
+    requestId: string,
+    status: 'approved' | 'rejected',
+    actedById?: string,
+  ) {
+    const knex = await this.getKnex(tenantId);
+    const request = await ApprovalRequest.query(knex)
+      .findById(requestId)
+      .withGraphFetched('steps');
+
+    if (!request) {
+      return;
+    }
+
+    const allApproved = (request.steps || []).every((step) => step.status === 'approved');
+    if (status === 'rejected' || allApproved) {
+      const finalStatus = status === 'rejected' ? 'rejected' : 'approved';
+      await ApprovalRequest.query(knex).patchAndFetchById(requestId, {
+        status: finalStatus,
+      });
+
+      await this.activityLogService.logActivity(tenantId, {
+        action: `approval_request.${finalStatus}`,
+        subjectType: 'ApprovalRequest',
+        subjectId: requestId,
+        description: `Request ${finalStatus}`,
+        causerId: actedById,
+      });
+
+      await this.logEffectExecution(tenantId, requestId, `on_${finalStatus}`);
+    }
+  }
+
+  private async logEffectExecution(tenantId: string, requestId: string, effectKey: string) {
+    const knex = await this.getKnex(tenantId);
+    const existing = await ApprovalEffectLog.query(knex)
+      .where({ requestId, effectKey })
+      .first();
+
+    if (existing) {
+      return existing;
+    }
+
+    return ApprovalEffectLog.query(knex).insert({
+      requestId,
+      effectKey,
+      status: 'success',
+    });
+  }
+
+  private createVersionHash(payload: Record<string, any>) {
+    return createHash('sha256').update(JSON.stringify(payload)).digest('hex');
+  }
+}

backend/src/main.ts

@@ -3,13 +3,15 @@ import {
   FastifyAdapter,
   NestFastifyApplication,
 } from '@nestjs/platform-fastify';
-import { ValidationPipe } from '@nestjs/common';
+import { ValidationPipe, Logger } from '@nestjs/common';
 import { AppModule } from './app.module';
+import { VoiceService } from './voice/voice.service';
+import { AudioConverterService } from './voice/audio-converter.service';
 
 async function bootstrap() {
   const app = await NestFactory.create<NestFastifyApplication>(
     AppModule,
-    new FastifyAdapter(),
+    new FastifyAdapter({ logger: true }),
   );
 
   // Global validation pipe
@@ -33,6 +35,145 @@ async function bootstrap() {
   const port = process.env.PORT || 3000;
   await app.listen(port, '0.0.0.0');
 
+  // After app is listening, register WebSocket handler
+  const fastifyInstance = app.getHttpAdapter().getInstance();
+  const logger = new Logger('MediaStreamWS');
+  const voiceService = app.get(VoiceService);
+  const audioConverter = app.get(AudioConverterService);
+  
+  const WebSocketServer = require('ws').Server;
+  const wss = new WebSocketServer({ noServer: true });
+
+  // Handle WebSocket upgrades at the server level
+  const server = (fastifyInstance.server as any);
+  
+  // Track active Media Streams connections: streamSid -> WebSocket
+  const mediaStreams: Map<string, any> = new Map();
+  
+  server.on('upgrade', (request: any, socket: any, head: any) => {
+    if (request.url === '/api/voice/media-stream') {
+      logger.log('=== MEDIA STREAM WEBSOCKET UPGRADE REQUEST ===');
+      logger.log(`Path: ${request.url}`);
+      
+      wss.handleUpgrade(request, socket, head, (ws: any) => {
+        logger.log('=== MEDIA STREAM WEBSOCKET UPGRADED SUCCESSFULLY ===');
+        handleMediaStreamSocket(ws);
+      });
+    }
+  });
+  
+  async function handleMediaStreamSocket(ws: any) {
+    let streamSid: string | null = null;
+    let callSid: string | null = null;
+    let tenantDomain: string | null = null;
+    let mediaPacketCount = 0;
+
+    ws.on('message', async (message: Buffer) => {
+      try {
+        const msg = JSON.parse(message.toString());
+
+        switch (msg.event) {
+          case 'connected':
+            logger.log('=== MEDIA STREAM EVENT: CONNECTED ===');
+            logger.log(`Protocol: ${msg.protocol}`);
+            logger.log(`Version: ${msg.version}`);
+            break;
+
+          case 'start':
+            streamSid = msg.streamSid;
+            callSid = msg.start.callSid;
+            tenantDomain = msg.start.customParameters?.tenantId || 'tenant1';
+
+            logger.log(`=== MEDIA STREAM EVENT: START ===`);
+            logger.log(`StreamSid: ${streamSid}`);
+            logger.log(`CallSid: ${callSid}`);
+            logger.log(`Tenant: ${tenantDomain}`);
+            logger.log(`MediaFormat: ${JSON.stringify(msg.start.mediaFormat)}`);
+
+            mediaStreams.set(streamSid, ws);
+            logger.log(`Stored WebSocket for streamSid: ${streamSid}. Total active streams: ${mediaStreams.size}`);
+
+            // Initialize OpenAI Realtime connection
+            logger.log(`Initializing OpenAI Realtime for call ${callSid}...`);
+            try {
+              await voiceService.initializeOpenAIRealtime({
+                callSid,
+                tenantId: tenantDomain,
+                userId: msg.start.customParameters?.userId || 'system',
+              });
+              logger.log(`✓ OpenAI Realtime initialized for call ${callSid}`);
+            } catch (error: any) {
+              logger.error(`Failed to initialize OpenAI: ${error.message}`);
+            }
+            break;
+
+          case 'media':
+            mediaPacketCount++;
+            // Only log every 500 packets to reduce noise
+            if (mediaPacketCount % 500 === 0) {
+              logger.log(`Received media packet #${mediaPacketCount} for StreamSid: ${streamSid}`);
+            }
+
+            if (!callSid || !tenantDomain) {
+              logger.warn('Received media before start event');
+              break;
+            }
+
+            try {
+              // Convert Twilio audio (μ-law 8kHz) to OpenAI format (PCM16 24kHz)
+              const twilioAudio = msg.media.payload;
+              const openaiAudio = audioConverter.twilioToOpenAI(twilioAudio);
+
+              // Send audio to OpenAI Realtime API
+              await voiceService.sendAudioToOpenAI(callSid, openaiAudio);
+            } catch (error: any) {
+              logger.error(`Error processing media: ${error.message}`);
+            }
+            break;
+
+          case 'stop':
+            logger.log(`=== MEDIA STREAM EVENT: STOP ===`);
+            logger.log(`StreamSid: ${streamSid}`);
+            logger.log(`Total media packets received: ${mediaPacketCount}`);
+
+            if (streamSid) {
+              mediaStreams.delete(streamSid);
+              logger.log(`Removed WebSocket for streamSid: ${streamSid}`);
+            }
+
+            // Clean up OpenAI connection
+            if (callSid) {
+              try {
+                logger.log(`Cleaning up OpenAI connection for call ${callSid}...`);
+                await voiceService.cleanupOpenAIConnection(callSid);
+                logger.log(`✓ OpenAI connection cleaned up`);
+              } catch (error: any) {
+                logger.error(`Failed to cleanup OpenAI: ${error.message}`);
+              }
+            }
+            break;
+
+          default:
+            logger.debug(`Unknown media stream event: ${msg.event}`);
+        }
+      } catch (error: any) {
+        logger.error(`Error processing media stream message: ${error.message}`);
+      }
+    });
+
+    ws.on('close', () => {
+      logger.log(`=== MEDIA STREAM WEBSOCKET CLOSED ===`);
+      if (streamSid) {
+        mediaStreams.delete(streamSid);
+      }
+    });
+
+    ws.on('error', (error: Error) => {
+      logger.error(`=== MEDIA STREAM WEBSOCKET ERROR ===`);
+      logger.error(`Error message: ${error.message}`);
+    });
+  }
+
   console.log(`🚀 Application is running on: http://localhost:${port}/api`);
 }
 

backend/src/models/activity-log.model.ts

@@ -0,0 +1,14 @@
+import { BaseModel } from './base.model';
+
+export class ActivityLog extends BaseModel {
+  static tableName = 'activity_logs';
+
+  id!: string;
+  action!: string;
+  subjectType!: string;
+  subjectId!: string;
+  description?: string;
+  properties?: Record<string, any>;
+  causerId?: string | null;
+  createdAt!: Date;
+}

backend/src/models/approval-assignment.model.ts

@@ -0,0 +1,30 @@
+import { BaseModel } from './base.model';
+import { ApprovalStep } from './approval-step.model';
+
+export class ApprovalAssignment extends BaseModel {
+  static tableName = 'approval_assignments';
+
+  id!: string;
+  stepId!: string;
+  assigneeId!: string;
+  status!: string;
+  response?: string | null;
+  respondedAt?: Date | null;
+  dueAt?: Date | null;
+  reassignedFromId?: string | null;
+  delegatedById?: string | null;
+  createdAt!: Date;
+  updatedAt!: Date;
+  step?: ApprovalStep;
+
+  static relationMappings = () => ({
+    step: {
+      relation: BaseModel.BelongsToOneRelation,
+      modelClass: 'approval-step.model',
+      join: {
+        from: 'approval_assignments.stepId',
+        to: 'approval_steps.id',
+      },
+    },
+  });
+}

backend/src/models/approval-definition.model.ts

@@ -0,0 +1,31 @@
+import { BaseModel } from './base.model';
+
+export class ApprovalDefinition extends BaseModel {
+  static tableName = 'approval_definitions';
+
+  id!: string;
+  name!: string;
+  description?: string;
+  triggerType!: string;
+  targetObjectType?: string;
+  entryCriteria?: Record<string, any> | null;
+  steps?: any[] | null;
+  votingPolicy?: Record<string, any> | null;
+  rejectionRule?: string | null;
+  materialChangePolicy?: string | null;
+  version!: number;
+  isActive!: boolean;
+  createdAt!: Date;
+  updatedAt!: Date;
+
+  static relationMappings = () => ({
+    requests: {
+      relation: BaseModel.HasManyRelation,
+      modelClass: 'approval-request.model',
+      join: {
+        from: 'approval_definitions.id',
+        to: 'approval_requests.definitionId',
+      },
+    },
+  });
+}

backend/src/models/approval-effect-log.model.ts

@@ -0,0 +1,23 @@
+import { BaseModel } from './base.model';
+
+export class ApprovalEffectLog extends BaseModel {
+  static tableName = 'approval_effect_logs';
+
+  id!: string;
+  requestId!: string;
+  effectKey!: string;
+  status!: string;
+  response?: Record<string, any> | null;
+  executedAt!: Date;
+
+  static relationMappings = () => ({
+    request: {
+      relation: BaseModel.BelongsToOneRelation,
+      modelClass: 'approval-request.model',
+      join: {
+        from: 'approval_effect_logs.requestId',
+        to: 'approval_requests.id',
+      },
+    },
+  });
+}

backend/src/models/approval-request.model.ts

@@ -0,0 +1,55 @@
+import { BaseModel } from './base.model';
+import { ApprovalDefinition } from './approval-definition.model';
+import { ApprovalStep } from './approval-step.model';
+import { ApprovalEffectLog } from './approval-effect-log.model';
+
+export class ApprovalRequest extends BaseModel {
+  static tableName = 'approval_requests';
+
+  id!: string;
+  definitionId!: string;
+  status!: string;
+  targetObjectType!: string;
+  targetObjectId!: string;
+  action?: string;
+  stateFrom?: string;
+  stateTo?: string;
+  fieldChanges?: Record<string, any> | null;
+  snapshot?: Record<string, any> | null;
+  versionHash?: string | null;
+  submittedById?: string | null;
+  submittedAt?: Date | null;
+  currentStepKey?: string | null;
+  createdAt!: Date;
+  updatedAt!: Date;
+  definition?: ApprovalDefinition;
+  steps?: ApprovalStep[];
+  effectLogs?: ApprovalEffectLog[];
+
+  static relationMappings = () => ({
+    definition: {
+      relation: BaseModel.BelongsToOneRelation,
+      modelClass: 'approval-definition.model',
+      join: {
+        from: 'approval_requests.definitionId',
+        to: 'approval_definitions.id',
+      },
+    },
+    steps: {
+      relation: BaseModel.HasManyRelation,
+      modelClass: 'approval-step.model',
+      join: {
+        from: 'approval_requests.id',
+        to: 'approval_steps.requestId',
+      },
+    },
+    effectLogs: {
+      relation: BaseModel.HasManyRelation,
+      modelClass: 'approval-effect-log.model',
+      join: {
+        from: 'approval_requests.id',
+        to: 'approval_effect_logs.requestId',
+      },
+    },
+  });
+}

backend/src/models/approval-step.model.ts

@@ -0,0 +1,41 @@
+import { BaseModel } from './base.model';
+import { ApprovalRequest } from './approval-request.model';
+import { ApprovalAssignment } from './approval-assignment.model';
+
+export class ApprovalStep extends BaseModel {
+  static tableName = 'approval_steps';
+
+  id!: string;
+  requestId!: string;
+  stepKey!: string;
+  name!: string;
+  stepOrder!: number;
+  status!: string;
+  routing?: Record<string, any> | null;
+  voting?: Record<string, any> | null;
+  dueAt?: Date | null;
+  completedAt?: Date | null;
+  createdAt!: Date;
+  updatedAt!: Date;
+  request?: ApprovalRequest;
+  assignments?: ApprovalAssignment[];
+
+  static relationMappings = () => ({
+    request: {
+      relation: BaseModel.BelongsToOneRelation,
+      modelClass: 'approval-request.model',
+      join: {
+        from: 'approval_steps.requestId',
+        to: 'approval_requests.id',
+      },
+    },
+    assignments: {
+      relation: BaseModel.HasManyRelation,
+      modelClass: 'approval-assignment.model',
+      join: {
+        from: 'approval_steps.id',
+        to: 'approval_assignments.stepId',
+      },
+    },
+  });
+}

backend/src/models/base.model.ts

@@ -1,7 +1,38 @@
-import { Model, ModelOptions, QueryContext, snakeCaseMappers } from 'objection';
+import { Model, ModelOptions, QueryContext } from 'objection';
 
 export class BaseModel extends Model {
-  static columnNameMappers = snakeCaseMappers();
+  /**
+   * Use a minimal column mapper: keep property names as-is, but handle
+   * timestamp fields that are stored as created_at/updated_at in the DB.
+   */
+  static columnNameMappers = {
+    parse(dbRow: Record<string, any>) {
+      const mapped: Record<string, any> = {};
+      for (const [key, value] of Object.entries(dbRow || {})) {
+        if (key === 'created_at') {
+          mapped.createdAt = value;
+        } else if (key === 'updated_at') {
+          mapped.updatedAt = value;
+        } else {
+          mapped[key] = value;
+        }
+      }
+      return mapped;
+    },
+    format(model: Record<string, any>) {
+      const mapped: Record<string, any> = {};
+      for (const [key, value] of Object.entries(model || {})) {
+        if (key === 'createdAt') {
+          mapped.created_at = value;
+        } else if (key === 'updatedAt') {
+          mapped.updated_at = value;
+        } else {
+          mapped[key] = value;
+        }
+      }
+      return mapped;
+    },
+  };
 
   id: string;
   createdAt: Date;

backend/src/models/contact-detail.model.ts

@@ -0,0 +1,33 @@
+import { BaseModel } from './base.model';
+
+export class ContactDetail extends BaseModel {
+  static tableName = 'contact_details';
+
+  id!: string;
+  relatedObjectType!: 'Account' | 'Contact';
+  relatedObjectId!: string;
+  detailType!: string;
+  label?: string;
+  value!: string;
+  isPrimary!: boolean;
+
+  // Provide optional relations for each supported parent type.
+  static relationMappings = {
+    account: {
+      relation: BaseModel.BelongsToOneRelation,
+      modelClass: 'account.model',
+      join: {
+        from: 'contact_details.relatedObjectId',
+        to: 'accounts.id',
+      },
+    },
+    contact: {
+      relation: BaseModel.BelongsToOneRelation,
+      modelClass: 'contact.model',
+      join: {
+        from: 'contact_details.relatedObjectId',
+        to: 'contacts.id',
+      },
+    },
+  };
+}

backend/src/models/contact.model.ts

@@ -0,0 +1,30 @@
+import { BaseModel } from './base.model';
+
+export class Contact extends BaseModel {
+  static tableName = 'contacts';
+
+  id!: string;
+  firstName!: string;
+  lastName!: string;
+  accountId!: string;
+  ownerId?: string;
+
+  static relationMappings = {
+    account: {
+      relation: BaseModel.BelongsToOneRelation,
+      modelClass: 'account.model',
+      join: {
+        from: 'contacts.accountId',
+        to: 'accounts.id',
+      },
+    },
+    owner: {
+      relation: BaseModel.BelongsToOneRelation,
+      modelClass: 'user.model',
+      join: {
+        from: 'contacts.ownerId',
+        to: 'users.id',
+      },
+    },
+  };
+}

backend/src/models/field-definition.model.ts

@@ -30,6 +30,8 @@ export interface UIMetadata {
   step?: number; // For number
   accept?: string; // For file/image
   relationDisplayField?: string; // Which field to display for relations
+  relationObjects?: string[]; // For polymorphic relations
+  relationTypeField?: string; // Field API name storing the selected relation type
   
   // Formatting
   format?: string; // Date format, number format, etc.
@@ -74,5 +76,13 @@ export class FieldDefinition extends BaseModel {
         to: 'object_definitions.id',
       },
     },
+    rolePermissions: {
+      relation: BaseModel.HasManyRelation,
+      modelClass: () => require('./role-field-permission.model').RoleFieldPermission,
+      join: {
+        from: 'field_definitions.id',
+        to: 'role_field_permissions.fieldDefinitionId',
+      },
+    },
   };
 }

backend/src/models/object-definition.model.ts

@@ -10,8 +10,11 @@ export class ObjectDefinition extends BaseModel {
   description?: string;
   isSystem: boolean;
   isCustom: boolean;
+  orgWideDefault: 'private' | 'public_read' | 'public_read_write';
   createdAt: Date;
   updatedAt: Date;
+  fields?: any[];
+  rolePermissions?: any[];
 
   static get jsonSchema() {
     return {
@@ -25,12 +28,14 @@ export class ObjectDefinition extends BaseModel {
         description: { type: 'string' },
         isSystem: { type: 'boolean' },
         isCustom: { type: 'boolean' },
+        orgWideDefault: { type: 'string', enum: ['private', 'public_read', 'public_read_write'] },
       },
     };
   }
 
   static get relationMappings() {
     const { FieldDefinition } = require('./field-definition.model');
+    const { RoleObjectPermission } = require('./role-object-permission.model');
 
     return {
       fields: {
@@ -41,6 +46,14 @@ export class ObjectDefinition extends BaseModel {
           to: 'field_definitions.objectDefinitionId',
         },
       },
+      rolePermissions: {
+        relation: BaseModel.HasManyRelation,
+        modelClass: RoleObjectPermission,
+        join: {
+          from: 'object_definitions.id',
+          to: 'role_object_permissions.objectDefinitionId',
+        },
+      },
     };
   }
 }

backend/src/models/record-share.model.ts

@@ -0,0 +1,113 @@
+import { BaseModel } from './base.model';
+
+export interface RecordShareAccessLevel {
+  canRead: boolean;
+  canEdit: boolean;
+  canDelete: boolean;
+}
+
+export class RecordShare extends BaseModel {
+  static tableName = 'record_shares';
+
+  // Don't use snake_case mapping since DB columns are already camelCase
+  static get columnNameMappers() {
+    return {
+      parse(obj: any) {
+        return obj;
+      },
+      format(obj: any) {
+        return obj;
+      },
+    };
+  }
+
+  // Don't auto-set timestamps - let DB defaults handle them
+  $beforeInsert() {
+    // Don't call super - skip BaseModel's timestamp logic
+  }
+
+  $beforeUpdate() {
+    // Don't call super - skip BaseModel's timestamp logic
+  }
+
+  id!: string;
+  objectDefinitionId!: string;
+  recordId!: string;
+  granteeUserId!: string;
+  grantedByUserId!: string;
+  accessLevel!: RecordShareAccessLevel;
+  expiresAt?: Date;
+  revokedAt?: Date;
+  createdAt!: Date;
+  updatedAt!: Date;
+
+  static get jsonSchema() {
+    return {
+      type: 'object',
+      required: ['objectDefinitionId', 'recordId', 'granteeUserId', 'grantedByUserId', 'accessLevel'],
+      properties: {
+        id: { type: 'string' },
+        objectDefinitionId: { type: 'string' },
+        recordId: { type: 'string' },
+        granteeUserId: { type: 'string' },
+        grantedByUserId: { type: 'string' },
+        accessLevel: {
+          type: 'object',
+          properties: {
+            canRead: { type: 'boolean' },
+            canEdit: { type: 'boolean' },
+            canDelete: { type: 'boolean' },
+          },
+        },
+        expiresAt: {
+          anyOf: [
+            { type: 'string', format: 'date-time' },
+            { type: 'null' },
+            { type: 'object' } // Allow Date objects
+          ]
+        },
+        revokedAt: {
+          anyOf: [
+            { type: 'string', format: 'date-time' },
+            { type: 'null' },
+            { type: 'object' } // Allow Date objects
+          ]
+        },
+        createdAt: { type: ['string', 'object'], format: 'date-time' },
+        updatedAt: { type: ['string', 'object'], format: 'date-time' },
+      },
+    };
+  }
+
+  static get relationMappings() {
+    const { ObjectDefinition } = require('./object-definition.model');
+    const { User } = require('./user.model');
+
+    return {
+      objectDefinition: {
+        relation: BaseModel.BelongsToOneRelation,
+        modelClass: ObjectDefinition,
+        join: {
+          from: 'record_shares.objectDefinitionId',
+          to: 'object_definitions.id',
+        },
+      },
+      granteeUser: {
+        relation: BaseModel.BelongsToOneRelation,
+        modelClass: User,
+        join: {
+          from: 'record_shares.granteeUserId',
+          to: 'users.id',
+        },
+      },
+      grantedByUser: {
+        relation: BaseModel.BelongsToOneRelation,
+        modelClass: User,
+        join: {
+          from: 'record_shares.grantedByUserId',
+          to: 'users.id',
+        },
+      },
+    };
+  }
+}

backend/src/models/role-field-permission.model.ts

@@ -0,0 +1,51 @@
+import { BaseModel } from './base.model';
+
+export class RoleFieldPermission extends BaseModel {
+  static tableName = 'role_field_permissions';
+
+  id!: string;
+  roleId!: string;
+  fieldDefinitionId!: string;
+  canRead!: boolean;
+  canEdit!: boolean;
+  createdAt!: Date;
+  updatedAt!: Date;
+
+  static get jsonSchema() {
+    return {
+      type: 'object',
+      required: ['roleId', 'fieldDefinitionId'],
+      properties: {
+        id: { type: 'string' },
+        roleId: { type: 'string' },
+        fieldDefinitionId: { type: 'string' },
+        canRead: { type: 'boolean' },
+        canEdit: { type: 'boolean' },
+      },
+    };
+  }
+
+  static get relationMappings() {
+    const { Role } = require('./role.model');
+    const { FieldDefinition } = require('./field-definition.model');
+
+    return {
+      role: {
+        relation: BaseModel.BelongsToOneRelation,
+        modelClass: Role,
+        join: {
+          from: 'role_field_permissions.roleId',
+          to: 'roles.id',
+        },
+      },
+      fieldDefinition: {
+        relation: BaseModel.BelongsToOneRelation,
+        modelClass: FieldDefinition,
+        join: {
+          from: 'role_field_permissions.fieldDefinitionId',
+          to: 'field_definitions.id',
+        },
+      },
+    };
+  }
+}

backend/src/models/role-object-permission.model.ts

@@ -0,0 +1,59 @@
+import { BaseModel } from './base.model';
+
+export class RoleObjectPermission extends BaseModel {
+  static tableName = 'role_object_permissions';
+
+  id!: string;
+  roleId!: string;
+  objectDefinitionId!: string;
+  canCreate!: boolean;
+  canRead!: boolean;
+  canEdit!: boolean;
+  canDelete!: boolean;
+  canViewAll!: boolean;
+  canModifyAll!: boolean;
+  createdAt!: Date;
+  updatedAt!: Date;
+
+  static get jsonSchema() {
+    return {
+      type: 'object',
+      required: ['roleId', 'objectDefinitionId'],
+      properties: {
+        id: { type: 'string' },
+        roleId: { type: 'string' },
+        objectDefinitionId: { type: 'string' },
+        canCreate: { type: 'boolean' },
+        canRead: { type: 'boolean' },
+        canEdit: { type: 'boolean' },
+        canDelete: { type: 'boolean' },
+        canViewAll: { type: 'boolean' },
+        canModifyAll: { type: 'boolean' },
+      },
+    };
+  }
+
+  static get relationMappings() {
+    const { Role } = require('./role.model');
+    const { ObjectDefinition } = require('./object-definition.model');
+
+    return {
+      role: {
+        relation: BaseModel.BelongsToOneRelation,
+        modelClass: Role,
+        join: {
+          from: 'role_object_permissions.roleId',
+          to: 'roles.id',
+        },
+      },
+      objectDefinition: {
+        relation: BaseModel.BelongsToOneRelation,
+        modelClass: ObjectDefinition,
+        join: {
+          from: 'role_object_permissions.objectDefinitionId',
+          to: 'object_definitions.id',
+        },
+      },
+    };
+  }
+}

backend/src/models/role.model.ts

@@ -27,6 +27,8 @@ export class Role extends BaseModel {
     const { RolePermission } = require('./role-permission.model');
     const { Permission } = require('./permission.model');
     const { User } = require('./user.model');
+    const { RoleObjectPermission } = require('./role-object-permission.model');
+    const { RoleFieldPermission } = require('./role-field-permission.model');
 
     return {
       rolePermissions: {
@@ -61,6 +63,22 @@ export class Role extends BaseModel {
           to: 'users.id',
         },
       },
+      objectPermissions: {
+        relation: BaseModel.HasManyRelation,
+        modelClass: RoleObjectPermission,
+        join: {
+          from: 'roles.id',
+          to: 'role_object_permissions.roleId',
+        },
+      },
+      fieldPermissions: {
+        relation: BaseModel.HasManyRelation,
+        modelClass: RoleFieldPermission,
+        join: {
+          from: 'roles.id',
+          to: 'role_field_permissions.roleId',
+        },
+      },
     };
   }
 }

backend/src/models/task.model.ts

@@ -0,0 +1,15 @@
+import { BaseModel } from './base.model';
+
+export class Task extends BaseModel {
+  static tableName = 'tasks';
+
+  id!: string;
+  title!: string;
+  description?: string;
+  status!: string;
+  priority?: string;
+  dueAt?: Date;
+  assignedToId?: string | null;
+  relatedObjectType?: string | null;
+  relatedObjectId?: string | null;
+}

backend/src/object/field-mapper.service.ts

@@ -22,7 +22,9 @@ export interface FieldConfigDTO {
   step?: number;
   accept?: string;
   relationObject?: string;
+  relationObjects?: string[];
   relationDisplayField?: string;
+  relationTypeField?: string;
   format?: string;
   prefix?: string;
   suffix?: string;
@@ -43,6 +45,14 @@ export interface ObjectDefinitionDTO {
   description?: string;
   isSystem: boolean;
   fields: FieldConfigDTO[];
+  relatedLists?: Array<{
+    title: string;
+    relationName: string;
+    objectApiName: string;
+    fields: FieldConfigDTO[];
+    canCreate?: boolean;
+    createRoute?: string;
+  }>;
 }
 
 @Injectable()
@@ -51,13 +61,29 @@ export class FieldMapperService {
    * Convert a field definition from the database to a frontend-friendly FieldConfig
    */
   mapFieldToDTO(field: any): FieldConfigDTO {
-    const uiMetadata = field.uiMetadata || {};
+    // Parse ui_metadata if it's a JSON string or object
+    let uiMetadata: any = {};
+    const metadataField = field.ui_metadata || field.uiMetadata;
+    if (metadataField) {
+      if (typeof metadataField === 'string') {
+        try {
+          uiMetadata = JSON.parse(metadataField);
+        } catch (e) {
+          uiMetadata = {};
+        }
+      } else {
+        uiMetadata = metadataField;
+      }
+    }
+    
+    const frontendType = this.mapFieldType(field.type);
+    const isLookupField = frontendType === 'belongsTo' || field.type.toLowerCase().includes('lookup');
     
     return {
       id: field.id,
       apiName: field.apiName,
       label: field.label,
-      type: this.mapFieldType(field.type),
+      type: frontendType,
       
       // Display properties
       placeholder: uiMetadata.placeholder || field.description,
@@ -82,7 +108,12 @@ export class FieldMapperService {
       step: uiMetadata.step,
       accept: uiMetadata.accept,
       relationObject: field.referenceObject,
-      relationDisplayField: uiMetadata.relationDisplayField,
+      relationObjects: uiMetadata.relationObjects,
+      // For lookup fields, provide default display field if not specified
+      relationDisplayField: isLookupField 
+        ? (uiMetadata.relationDisplayField || 'name')
+        : uiMetadata.relationDisplayField,
+      relationTypeField: uiMetadata.relationTypeField,
       
       // Formatting
       format: uiMetadata.format,
@@ -187,6 +218,17 @@ export class FieldMapperService {
         .filter((f: any) => f.isActive !== false)
         .sort((a: any, b: any) => (a.displayOrder || 0) - (b.displayOrder || 0))
         .map((f: any) => this.mapFieldToDTO(f)),
+      relatedLists: (objectDef.relatedLists || []).map((list: any) => ({
+        title: list.title,
+        relationName: list.relationName,
+        objectApiName: list.objectApiName,
+        fields: (list.fields || [])
+          .filter((f: any) => f.isActive !== false)
+          .map((f: any) => this.mapFieldToDTO(f))
+          .filter((f: any) => f.showOnList !== false),
+        canCreate: list.canCreate,
+        createRoute: list.createRoute,
+      })),
     };
   }
 

backend/src/object/models/base.model.ts

@@ -1,4 +1,5 @@
 import { Model } from 'objection';
+import { randomUUID } from 'crypto';
 
 /**
  * Base model for all dynamic and system models
@@ -10,26 +11,23 @@ export class BaseModel extends Model {
   tenantId?: string;
   ownerId?: string;
   name?: string;
-  created_at?: Date;
-  updated_at?: Date;
+  created_at?: string;
+  updated_at?: string;
 
   // Hook to set system-managed fields
-  $beforeInsert() {
-    // created_at and updated_at are handled by the database
-    // ownerId should be set by the controller/service
+  async $beforeInsert() {
+    if (!this.id) {
+      this.id = randomUUID();
+    }
+    if (!this.created_at) {
+      this.created_at = new Date().toISOString().slice(0, 19).replace('T', ' ');
+    }
+    if (!this.updated_at) {
+      this.updated_at = new Date().toISOString().slice(0, 19).replace('T', ' ');
+    }
   }
 
-  $beforeUpdate() {
-    // updated_at is handled by the database
-  }
-
-
-
-  /**
-   * Get the API name for this object
-   * Override in subclasses
-   */
-  static get objectApiName(): string {
-    return 'BaseModel';
+  async $beforeUpdate() {
+    this.updated_at = new Date().toISOString().slice(0, 19).replace('T', ' ');
   }
 }

backend/src/object/models/dynamic-model.factory.ts

@@ -1,4 +1,3 @@
-import { randomUUID } from 'crypto';
 import { ModelClass, JSONSchema, RelationMappings, Model } from 'objection';
 import { BaseModel } from './base.model';
 
@@ -29,9 +28,22 @@ export interface ObjectMetadata {
 
 export class DynamicModelFactory {
   /**
-   * Create a dynamic model class from object metadata
+   * Get relation name from lookup field API name
+   * Converts "ownerId" -> "owner", "customFieldId" -> "customfield"
    */
-  static createModel(meta: ObjectMetadata): ModelClass<any> {
+  static getRelationName(lookupFieldApiName: string): string {
+    return lookupFieldApiName.replace(/Id$/, '').toLowerCase();
+  }
+
+  /**
+   * Create a dynamic model class from object metadata
+   * @param meta Object metadata
+   * @param getModel Function to retrieve model classes from registry
+   */
+  static createModel(
+    meta: ObjectMetadata,
+    getModel?: (apiName: string) => ModelClass<any>,
+  ): ModelClass<any> {
     const { tableName, fields, apiName, relations = [] } = meta;
 
     // Build JSON schema properties
@@ -44,7 +56,8 @@ export class DynamicModelFactory {
       updated_at: { type: 'string', format: 'date-time' },
     };
 
-    const required: string[] = ['id', 'tenantId'];
+    // Don't require id or tenantId - they'll be set automatically
+    const required: string[] = [];
 
     // Add custom fields
     for (const field of fields) {
@@ -57,27 +70,98 @@ export class DynamicModelFactory {
       }
     }
 
-    // Build relation mappings
-    const relationMappings: RelationMappings = {};
-    for (const rel of relations) {
-      // Relations are resolved dynamically, skipping for now
-      // Will be handled by ModelRegistry.getModel()
-    }
+    // Build relation mappings from lookup fields
+    const lookupFields = fields.filter(f => f.type === 'LOOKUP' && f.referenceObject);
 
-    // Create the dynamic model class extending Model directly
-    class DynamicModel extends Model {
-      id?: string;
-      tenantId?: string;
-      ownerId?: string;
-      name?: string;
-      created_at?: string;
-      updated_at?: string;
+    // Store lookup fields metadata for later use
+    const lookupFieldsInfo = lookupFields.map(f => ({
+      apiName: f.apiName,
+      relationName: DynamicModelFactory.getRelationName(f.apiName),
+      referenceObject: f.referenceObject,
+      targetTable: this.getTableName(f.referenceObject),
+    }));
 
+    // Create the dynamic model class extending BaseModel
+    class DynamicModel extends BaseModel {
       static tableName = tableName;
 
       static objectApiName = apiName;
+      
+      static lookupFields = lookupFieldsInfo;
 
-      static relationMappings = relationMappings;
+      static get relationMappings(): RelationMappings {
+        const mappings: RelationMappings = {};
+
+        // Build relation mappings from lookup fields
+        for (const lookupInfo of lookupFieldsInfo) {
+          // Use getModel function if provided, otherwise use string reference
+          let modelClass: any = lookupInfo.referenceObject;
+          
+          if (getModel) {
+            const resolvedModel = getModel(lookupInfo.referenceObject);
+            // Only use resolved model if it exists, otherwise skip this relation
+            // It will be resolved later when the model is registered
+            if (resolvedModel) {
+              modelClass = resolvedModel;
+            } else {
+              // Skip this relation if model not found yet
+              continue;
+            }
+          }
+
+          mappings[lookupInfo.relationName] = {
+            relation: Model.BelongsToOneRelation,
+            modelClass,
+            join: {
+              from: `${tableName}.${lookupInfo.apiName}`,
+              to: `${lookupInfo.targetTable}.id`,
+            },
+          };
+        }
+
+        // Add additional relation mappings (e.g., hasMany)
+        for (const relation of relations) {
+          if (mappings[relation.name]) {
+            continue;
+          }
+
+          let modelClass: any = relation.targetObjectApiName;
+          if (getModel) {
+            const resolvedModel = getModel(relation.targetObjectApiName);
+            if (resolvedModel) {
+              modelClass = resolvedModel;
+            } else {
+              continue;
+            }
+          }
+
+          const targetTable = DynamicModelFactory.getTableName(relation.targetObjectApiName);
+
+          if (relation.type === 'belongsTo') {
+            mappings[relation.name] = {
+              relation: Model.BelongsToOneRelation,
+              modelClass,
+              join: {
+                from: `${tableName}.${relation.fromColumn}`,
+                to: `${targetTable}.${relation.toColumn}`,
+              },
+            };
+          }
+
+          if (relation.type === 'hasMany') {
+            mappings[relation.name] = {
+              relation: Model.HasManyRelation,
+              modelClass,
+              join: {
+                from: `${tableName}.${relation.fromColumn}`,
+                to: `${targetTable}.${relation.toColumn}`,
+              },
+            };
+          }
+        }
+
+        return mappings;
+      }
 
       static get jsonSchema() {
         return {
@@ -86,22 +170,6 @@ export class DynamicModelFactory {
           properties,
         };
       }
-
-      async $beforeInsert() {
-        if (!this.id) {
-          this.id = randomUUID();
-        }
-        if (!this.created_at) {
-          this.created_at = new Date().toISOString();
-        }
-        if (!this.updated_at) {
-          this.updated_at = new Date().toISOString();
-        }
-      }
-
-      async $beforeUpdate() {
-        this.updated_at = new Date().toISOString();
-      }
     }
 
     return DynamicModel as any;
@@ -111,7 +179,8 @@ export class DynamicModelFactory {
    * Convert a field definition to JSON schema property
    */
   private static fieldToJsonSchema(field: FieldDefinition): Record<string, any> {
-    switch (field.type.toUpperCase()) {
+    const baseSchema = () => {
+      switch (field.type.toUpperCase()) {
       case 'TEXT':
       case 'STRING':
       case 'EMAIL':
@@ -119,44 +188,71 @@ export class DynamicModelFactory {
       case 'PHONE':
       case 'PICKLIST':
       case 'MULTI_PICKLIST':
-        return {
-          type: 'string',
-          ...(field.isUnique && { uniqueItems: true }),
-        };
+          return {
+            type: 'string',
+            ...(field.isUnique && { uniqueItems: true }),
+          };
 
       case 'LONG_TEXT':
-        return { type: 'string' };
+          return { type: 'string' };
 
       case 'NUMBER':
       case 'DECIMAL':
       case 'CURRENCY':
       case 'PERCENT':
-        return {
-          type: 'number',
-          ...(field.isUnique && { uniqueItems: true }),
-        };
+          return {
+            type: 'number',
+            ...(field.isUnique && { uniqueItems: true }),
+          };
 
       case 'INTEGER':
-        return {
-          type: 'integer',
-          ...(field.isUnique && { uniqueItems: true }),
-        };
+          return {
+            type: 'integer',
+            ...(field.isUnique && { uniqueItems: true }),
+          };
 
       case 'BOOLEAN':
-        return { type: 'boolean', default: false };
+          return { type: 'boolean', default: false };
 
       case 'DATE':
-        return { type: 'string', format: 'date' };
+          return { type: 'string', format: 'date' };
 
       case 'DATE_TIME':
-        return { type: 'string', format: 'date-time' };
+          return { type: 'string', format: 'date-time' };
 
       case 'LOOKUP':
       case 'BELONGS_TO':
-        return { type: 'string' };
+          return { type: 'string' };
 
       default:
-        return { type: 'string' };
+          return { type: 'string' };
+      }
+    };
+
+    const schema = baseSchema();
+
+    // Allow null for non-required fields so optional strings/numbers don't fail validation
+    if (!field.isRequired) {
+      return {
+        anyOf: [schema, { type: 'null' }],
+      };
     }
+
+    return schema;
+  }
+
+  /**
+   * Get table name from object API name
+   */
+  private static getTableName(objectApiName: string): string {
+    // Convert PascalCase/camelCase to snake_case and pluralize
+    const snakeCase = objectApiName
+      .replace(/([A-Z])/g, '_$1')
+      .toLowerCase()
+      .replace(/^_/, '');
+    if (snakeCase.endsWith('y')) {
+      return `${snakeCase.slice(0, -1)}ies`;
+    }
+    return snakeCase.endsWith('s') ? snakeCase : `${snakeCase}s`;
   }
 }

backend/src/object/models/model.registry.ts

@@ -16,13 +16,17 @@ export class ModelRegistry {
    */
   registerModel(apiName: string, modelClass: ModelClass<BaseModel>): void {
     this.registry.set(apiName, modelClass);
+    const lowerKey = apiName.toLowerCase();
+    if (lowerKey !== apiName && !this.registry.has(lowerKey)) {
+      this.registry.set(lowerKey, modelClass);
+    }
   }
 
   /**
    * Get a model from the registry
    */
   getModel(apiName: string): ModelClass<BaseModel> {
-    const model = this.registry.get(apiName);
+    const model = this.registry.get(apiName) || this.registry.get(apiName.toLowerCase());
     if (!model) {
       throw new Error(`Model for ${apiName} not found in registry`);
     }
@@ -33,7 +37,7 @@ export class ModelRegistry {
    * Check if a model exists in the registry
    */
   hasModel(apiName: string): boolean {
-    return this.registry.has(apiName);
+    return this.registry.has(apiName) || this.registry.has(apiName.toLowerCase());
   }
 
   /**
@@ -42,7 +46,13 @@ export class ModelRegistry {
   createAndRegisterModel(
     metadata: ObjectMetadata,
   ): ModelClass<BaseModel> {
-    const model = DynamicModelFactory.createModel(metadata);
+    // Create model with a getModel function that resolves from this registry
+    // Returns undefined if model not found (for models not yet registered)
+    const model = DynamicModelFactory.createModel(
+      metadata,
+      (apiName: string) =>
+        this.registry.get(apiName) || this.registry.get(apiName.toLowerCase()),
+    );
     this.registerModel(metadata.apiName, model);
     return model;
   }

backend/src/object/models/model.service.ts

@@ -5,6 +5,7 @@ import { BaseModel } from './base.model';
 import { ModelRegistry } from './model.registry';
 import { ObjectMetadata } from './dynamic-model.factory';
 import { TenantDatabaseService } from '../../tenant/tenant-database.service';
+import { UserModel, RoleModel, PermissionModel } from './system-models';
 
 /**
  * Service to manage dynamic models for a specific tenant
@@ -21,11 +22,30 @@ export class ModelService {
    */
   getTenantRegistry(tenantId: string): ModelRegistry {
     if (!this.tenantRegistries.has(tenantId)) {
-      this.tenantRegistries.set(tenantId, new ModelRegistry());
+      const registry = new ModelRegistry();
+      
+      // Register system models that are defined as static Objection models
+      this.registerSystemModels(registry);
+      
+      this.tenantRegistries.set(tenantId, registry);
     }
     return this.tenantRegistries.get(tenantId)!;
   }
 
+  /**
+   * Register static system models in the registry
+   * Uses simplified models without complex relationMappings to avoid modelPath issues
+   */
+  private registerSystemModels(registry: ModelRegistry): void {
+    // Register system models by their API name (used in referenceObject fields)
+    // These are simplified versions without relationMappings to avoid dependency issues
+    registry.registerModel('User', UserModel as any);
+    registry.registerModel('Role', RoleModel as any);
+    registry.registerModel('Permission', PermissionModel as any);
+    
+    this.logger.debug('Registered system models: User, Role, Permission');
+  }
+
   /**
    * Create and register a model for a tenant
    */
@@ -60,6 +80,24 @@ export class ModelService {
   ): Promise<ModelClass<BaseModel>> {
     const knex = await this.tenantDbService.getTenantKnexById(tenantId);
     const model = this.getModel(tenantId, objectApiName);
+    
+    // Bind knex to the model and also to all models in the registry
+    // This ensures system models also have knex bound when they're used in relations
+    const registry = this.getTenantRegistry(tenantId);
+    const allModels = registry.getAllModelNames();
+    
+    // Bind knex to all models to ensure relations work
+    for (const modelName of allModels) {
+      try {
+        const m = registry.getModel(modelName);
+        if (m && !m.knex()) {
+          m.knex(knex);
+        }
+      } catch (error) {
+        // Ignore errors for models that don't need binding
+      }
+    }
+    
     return model.bindKnex(knex);
   }
 
@@ -78,4 +116,88 @@ export class ModelService {
     const registry = this.getTenantRegistry(tenantId);
     return registry.getAllModelNames();
   }
+
+  /**
+   * Ensure a model is registered with all its dependencies.
+   * This method handles recursive model creation for related objects.
+   * 
+   * @param tenantId - The tenant ID
+   * @param objectApiName - The object API name to ensure registration for
+   * @param fetchMetadata - Callback function to fetch object metadata (provided by ObjectService)
+   * @param visited - Set to track visited models and prevent infinite loops
+   */
+  async ensureModelWithDependencies(
+    tenantId: string,
+    objectApiName: string,
+    fetchMetadata: (apiName: string) => Promise<ObjectMetadata>,
+    visited: Set<string> = new Set(),
+  ): Promise<void> {
+    // Prevent infinite recursion
+    if (visited.has(objectApiName)) {
+      return;
+    }
+    visited.add(objectApiName);
+
+    // Check if model already exists
+    if (this.hasModel(tenantId, objectApiName)) {
+      return;
+    }
+
+    try {
+      // Fetch the object metadata
+      const objectMetadata = await fetchMetadata(objectApiName);
+
+      // Extract lookup fields to find dependencies
+      const lookupFields = objectMetadata.fields.filter(
+        f => f.type === 'LOOKUP' && f.referenceObject
+      );
+
+      // Recursively ensure all dependent models are registered first
+      for (const field of lookupFields) {
+        if (field.referenceObject) {
+          try {
+            await this.ensureModelWithDependencies(
+              tenantId,
+              field.referenceObject,
+              fetchMetadata,
+              visited,
+            );
+          } catch (error) {
+            // If related object doesn't exist (e.g., system tables), skip it
+            this.logger.debug(
+              `Skipping registration of related model ${field.referenceObject}: ${error.message}`
+            );
+          }
+        }
+      }
+
+      if (objectMetadata.relations) {
+        for (const relation of objectMetadata.relations) {
+          if (relation.targetObjectApiName) {
+            try {
+              await this.ensureModelWithDependencies(
+                tenantId,
+                relation.targetObjectApiName,
+                fetchMetadata,
+                visited,
+              );
+            } catch (error) {
+              this.logger.debug(
+                `Skipping registration of related model ${relation.targetObjectApiName}: ${error.message}`
+              );
+            }
+          }
+        }
+      }
+
+      // Now create and register this model (all dependencies are ready)
+      await this.createModelForObject(tenantId, objectMetadata);
+      this.logger.log(`Registered model for ${objectApiName} in tenant ${tenantId}`);
+    } catch (error) {
+      this.logger.warn(
+        `Failed to ensure model for ${objectApiName}: ${error.message}`
+      );
+      throw error;
+    }
+  }
 }

backend/src/object/models/system-models.ts

@@ -0,0 +1,85 @@
+import { Model } from 'objection';
+
+/**
+ * Simplified User model for use in dynamic object relations
+ * This version doesn't include complex relationMappings to avoid modelPath issues
+ */
+export class UserModel extends Model {
+  static tableName = 'users';
+  static objectApiName = 'User';
+
+  id!: string;
+  email!: string;
+  firstName?: string;
+  lastName?: string;
+  name?: string;
+  isActive!: boolean;
+  createdAt!: Date;
+  updatedAt!: Date;
+
+  static get jsonSchema() {
+    return {
+      type: 'object',
+      required: ['email'],
+      properties: {
+        id: { type: 'string' },
+        email: { type: 'string', format: 'email' },
+        firstName: { type: 'string' },
+        lastName: { type: 'string' },
+        name: { type: 'string' },
+        isActive: { type: 'boolean' },
+      },
+    };
+  }
+
+  // No relationMappings to avoid modelPath resolution issues
+  // These simplified models are only used for lookup relations from dynamic models
+}
+
+/**
+ * Simplified Role model for use in dynamic object relations
+ */
+export class RoleModel extends Model {
+  static tableName = 'roles';
+  static objectApiName = 'Role';
+
+  id!: string;
+  name!: string;
+  description?: string;
+
+  static get jsonSchema() {
+    return {
+      type: 'object',
+      required: ['name'],
+      properties: {
+        id: { type: 'string' },
+        name: { type: 'string' },
+        description: { type: 'string' },
+      },
+    };
+  }
+}
+
+/**
+ * Simplified Permission model for use in dynamic object relations
+ */
+export class PermissionModel extends Model {
+  static tableName = 'permissions';
+  static objectApiName = 'Permission';
+
+  id!: string;
+  name!: string;
+  description?: string;
+
+  static get jsonSchema() {
+    return {
+      type: 'object',
+      required: ['name'],
+      properties: {
+        id: { type: 'string' },
+        name: { type: 'string' },
+        description: { type: 'string' },
+      },
+    };
+  }
+}

backend/src/object/object.module.ts

@@ -6,11 +6,13 @@ import { SchemaManagementService } from './schema-management.service';
 import { FieldMapperService } from './field-mapper.service';
 import { TenantModule } from '../tenant/tenant.module';
 import { MigrationModule } from '../migration/migration.module';
+import { RbacModule } from '../rbac/rbac.module';
 import { ModelRegistry } from './models/model.registry';
 import { ModelService } from './models/model.service';
+import { MeilisearchModule } from '../search/meilisearch.module';
 
 @Module({
-  imports: [TenantModule, MigrationModule],
+  imports: [TenantModule, MigrationModule, RbacModule, MeilisearchModule],
   providers: [
     ObjectService,
     SchemaManagementService,

backend/src/object/runtime-object.controller.ts

@@ -95,4 +95,20 @@ export class RuntimeObjectController {
       user.userId,
     );
   }
+
+  @Post(':objectApiName/records/bulk-delete')
+  async deleteRecords(
+    @TenantId() tenantId: string,
+    @Param('objectApiName') objectApiName: string,
+    @Body() body: { recordIds?: string[]; ids?: string[] },
+    @CurrentUser() user: any,
+  ) {
+    const recordIds: string[] = body?.recordIds || body?.ids || [];
+    return this.objectService.deleteRecords(
+      tenantId,
+      objectApiName,
+      recordIds,
+      user.userId,
+    );
+  }
 }

backend/src/object/schema-management.service.ts

@@ -15,7 +15,11 @@ export class SchemaManagementService {
     objectDefinition: ObjectDefinition,
     fields: FieldDefinition[],
   ) {
-    const tableName = this.getTableName(objectDefinition.apiName);
+    const tableName = this.getTableName(
+      objectDefinition.apiName,
+      objectDefinition.label,
+      objectDefinition.pluralLabel,
+    );
 
     // Check if table already exists
     const exists = await knex.schema.hasTable(tableName);
@@ -44,8 +48,10 @@ export class SchemaManagementService {
     knex: Knex,
     objectApiName: string,
     field: FieldDefinition,
+    objectLabel?: string,
+    pluralLabel?: string,
   ) {
-    const tableName = this.getTableName(objectApiName);
+    const tableName = this.getTableName(objectApiName, objectLabel, pluralLabel);
 
     await knex.schema.alterTable(tableName, (table) => {
       this.addFieldColumn(table, field);
@@ -61,8 +67,10 @@ export class SchemaManagementService {
     knex: Knex,
     objectApiName: string,
     fieldApiName: string,
+    objectLabel?: string,
+    pluralLabel?: string,
   ) {
-    const tableName = this.getTableName(objectApiName);
+    const tableName = this.getTableName(objectApiName, objectLabel, pluralLabel);
 
     await knex.schema.alterTable(tableName, (table) => {
       table.dropColumn(fieldApiName);
@@ -71,11 +79,44 @@ export class SchemaManagementService {
     this.logger.log(`Removed field ${fieldApiName} from table ${tableName}`);
   }
 
+  /**
+   * Alter a field in an existing object table
+   * Handles safe updates like changing NOT NULL or constraints
+   * Warns about potentially destructive operations
+   */
+  async alterFieldInTable(
+    knex: Knex,
+    objectApiName: string,
+    fieldApiName: string,
+    field: FieldDefinition,
+    objectLabel?: string,
+    pluralLabel?: string,
+    options?: {
+      skipTypeChange?: boolean; // Skip if type change would lose data
+    },
+  ) {
+    const tableName = this.getTableName(objectApiName, objectLabel, pluralLabel);
+    const skipTypeChange = options?.skipTypeChange ?? true;
+
+    await knex.schema.alterTable(tableName, (table) => {
+      // Drop the existing column and recreate with new definition
+      // Note: This approach works for metadata changes, but type changes may need data migration
+      table.dropColumn(fieldApiName);
+    });
+
+    // Recreate the column with new definition
+    await knex.schema.alterTable(tableName, (table) => {
+      this.addFieldColumn(table, field);
+    });
+
+    this.logger.log(`Altered field ${fieldApiName} in table ${tableName}`);
+  }
+
   /**
    * Drop an object table
    */
-  async dropObjectTable(knex: Knex, objectApiName: string) {
-    const tableName = this.getTableName(objectApiName);
+  async dropObjectTable(knex: Knex, objectApiName: string, objectLabel?: string, pluralLabel?: string) {
+    const tableName = this.getTableName(objectApiName, objectLabel, pluralLabel);
 
     await knex.schema.dropTableIfExists(tableName);
 
@@ -94,15 +135,30 @@ export class SchemaManagementService {
     let column: Knex.ColumnBuilder;
 
     switch (field.type) {
+      // Text types
       case 'String':
+      case 'TEXT':
+      case 'EMAIL':
+      case 'PHONE':
+      case 'URL':
         column = table.string(columnName, field.length || 255);
         break;
 
       case 'Text':
+      case 'LONG_TEXT':
         column = table.text(columnName);
         break;
 
+      case 'PICKLIST':
+      case 'MULTI_PICKLIST':
+        column = table.string(columnName, 255);
+        break;
+
+      // Numeric types
       case 'Number':
+      case 'NUMBER':
+      case 'CURRENCY':
+      case 'PERCENT':
         if (field.scale && field.scale > 0) {
           column = table.decimal(
             columnName,
@@ -115,18 +171,28 @@ export class SchemaManagementService {
         break;
 
       case 'Boolean':
+      case 'BOOLEAN':
         column = table.boolean(columnName).defaultTo(false);
         break;
 
+      // Date types
       case 'Date':
+      case 'DATE':
         column = table.date(columnName);
         break;
 
       case 'DateTime':
+      case 'DATE_TIME':
         column = table.datetime(columnName);
         break;
 
+      case 'TIME':
+        column = table.time(columnName);
+        break;
+
+      // Relationship types
       case 'Reference':
+      case 'LOOKUP':
         column = table.uuid(columnName);
         if (field.referenceObject) {
           const refTableName = this.getTableName(field.referenceObject);
@@ -134,19 +200,30 @@ export class SchemaManagementService {
         }
         break;
 
+      // Email (legacy)
       case 'Email':
         column = table.string(columnName, 255);
         break;
 
+      // Phone (legacy)
       case 'Phone':
         column = table.string(columnName, 50);
         break;
 
+      // Url (legacy)
       case 'Url':
         column = table.string(columnName, 255);
         break;
 
+      // File types
+      case 'FILE':
+      case 'IMAGE':
+        column = table.text(columnName); // Store file path or URL
+        break;
+
+      // JSON
       case 'Json':
+      case 'JSON':
         column = table.json(columnName);
         break;
 
@@ -174,16 +251,35 @@ export class SchemaManagementService {
   /**
    * Convert object API name to table name (convert to snake_case, pluralize)
    */
-  private getTableName(apiName: string): string {
-    // Convert PascalCase to snake_case
-    const snakeCase = apiName
-      .replace(/([A-Z])/g, '_$1')
-      .toLowerCase()
-      .replace(/^_/, '');
+  private getTableName(apiName: string, objectLabel?: string, pluralLabel?: string): string {
+    const toSnakePlural = (source: string): string => {
+      const cleaned = source.replace(/[\s-]+/g, '_');
+      const snake = cleaned
+        .replace(/([a-z0-9])([A-Z])/g, '$1_$2')
+        .replace(/__+/g, '_')
+        .toLowerCase()
+        .replace(/^_/, '');
 
-    // Simple pluralization (append 's' if not already plural)
-    // In production, use a proper pluralization library
-    return snakeCase.endsWith('s') ? snakeCase : `${snakeCase}s`;
+      if (snake.endsWith('y')) return `${snake.slice(0, -1)}ies`;
+      if (snake.endsWith('s')) return snake;
+      return `${snake}s`;
+    };
+
+    const fromApi = toSnakePlural(apiName);
+    const fromLabel = objectLabel ? toSnakePlural(objectLabel) : null;
+    const fromPlural = pluralLabel ? toSnakePlural(pluralLabel) : null;
+
+    if (fromLabel && fromLabel.includes('_') && !fromApi.includes('_')) {
+      return fromLabel;
+    }
+    if (fromPlural && fromPlural.includes('_') && !fromApi.includes('_')) {
+      return fromPlural;
+    }
+
+    if (fromLabel && fromLabel !== fromApi) return fromLabel;
+    if (fromPlural && fromPlural !== fromApi) return fromPlural;
+
+    return fromApi;
   }
 
   /**

backend/src/object/setup-object.controller.ts

@@ -2,6 +2,9 @@ import {
   Controller,
   Get,
   Post,
+  Patch,
+  Put,
+  Delete,
   Param,
   Body,
   UseGuards,
@@ -10,6 +13,7 @@ import { ObjectService } from './object.service';
 import { FieldMapperService } from './field-mapper.service';
 import { JwtAuthGuard } from '../auth/jwt-auth.guard';
 import { TenantId } from '../tenant/tenant.decorator';
+import { TenantDatabaseService } from '../tenant/tenant-database.service';
 
 @Controller('setup/objects')
 @UseGuards(JwtAuthGuard)
@@ -17,6 +21,7 @@ export class SetupObjectController {
   constructor(
     private objectService: ObjectService,
     private fieldMapperService: FieldMapperService,
+    private tenantDbService: TenantDatabaseService,
   ) {}
 
   @Get()
@@ -29,7 +34,8 @@ export class SetupObjectController {
     @TenantId() tenantId: string,
     @Param('objectApiName') objectApiName: string,
   ) {
-    return this.objectService.getObjectDefinition(tenantId, objectApiName);
+    const objectDef = await this.objectService.getObjectDefinition(tenantId, objectApiName);
+    return this.fieldMapperService.mapObjectDefinitionToDTO(objectDef);
   }
 
   @Get(':objectApiName/ui-config')
@@ -58,10 +64,93 @@ export class SetupObjectController {
     @Param('objectApiName') objectApiName: string,
     @Body() data: any,
   ) {
-    return this.objectService.createFieldDefinition(
+    const field = await this.objectService.createFieldDefinition(
       tenantId,
       objectApiName,
       data,
     );
+    // Map the created field to frontend format
+    return this.fieldMapperService.mapFieldToDTO(field);
+  }
+
+  @Put(':objectApiName/fields/:fieldApiName')
+  async updateFieldDefinition(
+    @TenantId() tenantId: string,
+    @Param('objectApiName') objectApiName: string,
+    @Param('fieldApiName') fieldApiName: string,
+    @Body() data: any,
+  ) {
+    const field = await this.objectService.updateFieldDefinition(
+      tenantId,
+      objectApiName,
+      fieldApiName,
+      data,
+    );
+    return this.fieldMapperService.mapFieldToDTO(field);
+  }
+
+  @Delete(':objectApiName/fields/:fieldApiName')
+  async deleteFieldDefinition(
+    @TenantId() tenantId: string,
+    @Param('objectApiName') objectApiName: string,
+    @Param('fieldApiName') fieldApiName: string,
+  ) {
+    return this.objectService.deleteFieldDefinition(
+      tenantId,
+      objectApiName,
+      fieldApiName,
+    );
+  }
+
+  @Patch(':objectApiName')
+  async updateObjectDefinition(
+    @TenantId() tenantId: string,
+    @Param('objectApiName') objectApiName: string,
+    @Body() data: any,
+  ) {
+    return this.objectService.updateObjectDefinition(tenantId, objectApiName, data);
+  }
+
+  @Get(':objectId/field-permissions')
+  async getFieldPermissions(
+    @TenantId() tenantId: string,
+    @Param('objectId') objectId: string,
+  ) {
+    return this.objectService.getFieldPermissions(tenantId, objectId);
+  }
+
+  @Put(':objectId/field-permissions')
+  async updateFieldPermission(
+    @TenantId() tenantId: string,
+    @Param('objectId') objectId: string,
+    @Body() data: { roleId: string; fieldDefinitionId: string; canRead: boolean; canEdit: boolean },
+  ) {
+    return this.objectService.updateFieldPermission(tenantId, data.roleId, data.fieldDefinitionId, data.canRead, data.canEdit);
+  }
+
+  @Get(':objectApiName/permissions/:roleId')
+  async getObjectPermissions(
+    @TenantId() tenantId: string,
+    @Param('objectApiName') objectApiName: string,
+    @Param('roleId') roleId: string,
+  ) {
+    return this.objectService.getObjectPermissions(tenantId, objectApiName, roleId);
+  }
+
+  @Put(':objectApiName/permissions')
+  async updateObjectPermissions(
+    @TenantId() tenantId: string,
+    @Param('objectApiName') objectApiName: string,
+    @Body() data: { 
+      roleId: string;
+      canCreate: boolean;
+      canRead: boolean;
+      canEdit: boolean;
+      canDelete: boolean;
+      canViewAll: boolean;
+      canModifyAll: boolean;
+    },
+  ) {
+    return this.objectService.updateObjectPermissions(tenantId, objectApiName, data);
   }
 }

backend/src/page-layout/dto/page-layout.dto.ts

@@ -20,6 +20,7 @@ export class CreatePageLayoutDto {
       w: number;
       h: number;
     }>;
+    relatedLists?: string[];
   };
 
   @IsString()
@@ -46,6 +47,7 @@ export class UpdatePageLayoutDto {
       w: number;
       h: number;
     }>;
+    relatedLists?: string[];
   };
 
   @IsString()

backend/src/rbac/ability.factory.ts

@@ -0,0 +1,199 @@
+import { AbilityBuilder, PureAbility, AbilityClass } from '@casl/ability';
+import { Injectable } from '@nestjs/common';
+import { User } from '../models/user.model';
+import { RoleObjectPermission } from '../models/role-object-permission.model';
+import { RoleFieldPermission } from '../models/role-field-permission.model';
+import { RecordShare } from '../models/record-share.model';
+
+// Define action types
+export type Action = 'create' | 'read' | 'update' | 'delete' | 'view_all' | 'modify_all';
+
+// Define subject types - can be string (object API name) or actual object with fields
+export type Subject = string | { objectApiName: string; ownerId?: string; id?: string; [key: string]: any };
+
+// Define field actions
+export type FieldAction = 'read' | 'edit';
+
+export type AppAbility = PureAbility<[Action, Subject], { field?: string }>;
+
+@Injectable()
+export class AbilityFactory {
+  /**
+   * Build CASL ability for a user based on their roles and permissions
+   * This aggregates permissions from all roles the user has
+   */
+  async defineAbilityFor(
+    user: User & { roles?: Array<{ objectPermissions?: RoleObjectPermission[]; fieldPermissions?: RoleFieldPermission[] }> },
+    recordShares?: RecordShare[],
+  ): Promise<AppAbility> {
+    const { can, cannot, build } = new AbilityBuilder<AppAbility>(PureAbility as AbilityClass<AppAbility>);
+
+    if (!user.roles || user.roles.length === 0) {
+      // No roles = no permissions
+      return build();
+    }
+
+    // Aggregate object permissions from all roles
+    const objectPermissionsMap = new Map<string, {
+      canCreate: boolean;
+      canRead: boolean;
+      canEdit: boolean;
+      canDelete: boolean;
+      canViewAll: boolean;
+      canModifyAll: boolean;
+    }>();
+
+    // Aggregate field permissions from all roles
+    const fieldPermissionsMap = new Map<string, {
+      canRead: boolean;
+      canEdit: boolean;
+    }>();
+
+    // Process all roles
+    for (const role of user.roles) {
+      // Aggregate object permissions
+      if (role.objectPermissions) {
+        for (const perm of role.objectPermissions) {
+          const existing = objectPermissionsMap.get(perm.objectDefinitionId) || {
+            canCreate: false,
+            canRead: false,
+            canEdit: false,
+            canDelete: false,
+            canViewAll: false,
+            canModifyAll: false,
+          };
+
+          // Union of permissions (if any role grants it, user has it)
+          objectPermissionsMap.set(perm.objectDefinitionId, {
+            canCreate: existing.canCreate || perm.canCreate,
+            canRead: existing.canRead || perm.canRead,
+            canEdit: existing.canEdit || perm.canEdit,
+            canDelete: existing.canDelete || perm.canDelete,
+            canViewAll: existing.canViewAll || perm.canViewAll,
+            canModifyAll: existing.canModifyAll || perm.canModifyAll,
+          });
+        }
+      }
+
+      // Aggregate field permissions
+      if (role.fieldPermissions) {
+        for (const perm of role.fieldPermissions) {
+          const existing = fieldPermissionsMap.get(perm.fieldDefinitionId) || {
+            canRead: false,
+            canEdit: false,
+          };
+
+          fieldPermissionsMap.set(perm.fieldDefinitionId, {
+            canRead: existing.canRead || perm.canRead,
+            canEdit: existing.canEdit || perm.canEdit,
+          });
+        }
+      }
+    }
+
+    // Convert aggregated permissions to CASL rules
+    for (const [objectId, perms] of objectPermissionsMap) {
+      // Create permission
+      if (perms.canCreate) {
+        can('create', objectId);
+      }
+
+      // Read permission
+      if (perms.canRead) {
+        can('read', objectId);
+      }
+
+      // View all permission (can see all records regardless of ownership)
+      if (perms.canViewAll) {
+        can('view_all', objectId);
+      }
+
+      // Edit permission
+      if (perms.canEdit) {
+        can('update', objectId);
+      }
+
+      // Modify all permission (can edit all records regardless of ownership)
+      if (perms.canModifyAll) {
+        can('modify_all', objectId);
+      }
+
+      // Delete permission
+      if (perms.canDelete) {
+        can('delete', objectId);
+      }
+    }
+
+    // Add record sharing permissions
+    if (recordShares) {
+      for (const share of recordShares) {
+        // Only add if share is active (not expired, not revoked)
+        const now = new Date();
+        const isExpired = share.expiresAt && share.expiresAt < now;
+        const isRevoked = share.revokedAt !== null;
+
+        if (!isExpired && !isRevoked) {
+          // Note: Record-level sharing will be checked in authorization service
+          // CASL abilities are primarily for object-level permissions
+          // Individual record access is validated in applyScopeToQuery
+        }
+      }
+    }
+
+    return build();
+  }
+
+  /**
+   * Check if user can access a specific field
+   * Returns true if user has permission or if no restriction exists
+   */
+  canAccessField(
+    fieldDefinitionId: string,
+    action: FieldAction,
+    user: User & { roles?: Array<{ fieldPermissions?: RoleFieldPermission[] }> },
+  ): boolean {
+    if (!user.roles || user.roles.length === 0) {
+      return false;
+    }
+
+    // Collect all field permissions from all roles
+    const allFieldPermissions: RoleFieldPermission[] = [];
+    for (const role of user.roles) {
+      if (role.fieldPermissions) {
+        allFieldPermissions.push(...role.fieldPermissions);
+      }
+    }
+
+    // If there are NO field permissions configured at all, allow by default
+    if (allFieldPermissions.length === 0) {
+      return true;
+    }
+
+    // If field permissions exist, check for explicit grants (union of all roles)
+    for (const role of user.roles) {
+      if (role.fieldPermissions) {
+        const fieldPerm = role.fieldPermissions.find(fp => fp.fieldDefinitionId === fieldDefinitionId);
+        if (fieldPerm) {
+          if (action === 'read' && fieldPerm.canRead) return true;
+          if (action === 'edit' && fieldPerm.canEdit) return true;
+        }
+      }
+    }
+
+    // No explicit rule for this field but other field permissions exist.
+    // Default to allow so new fields don't get silently stripped and fail validation.
+    return true;
+  }
+
+  /**
+   * Filter fields based on user permissions
+   * Returns array of field IDs the user can access with the specified action
+   */
+  filterFields(
+    fieldDefinitionIds: string[],
+    action: FieldAction,
+    user: User & { roles?: Array<{ fieldPermissions?: RoleFieldPermission[] }> },
+  ): string[] {
+    return fieldDefinitionIds.filter(fieldId => this.canAccessField(fieldId, action, user));
+  }
+}

backend/src/rbac/authorization.service.ts

@@ -0,0 +1,282 @@
+import { Injectable, ForbiddenException } from '@nestjs/common';
+import { Knex } from 'knex';
+import { User } from '../models/user.model';
+import { ObjectDefinition } from '../models/object-definition.model';
+import { FieldDefinition } from '../models/field-definition.model';
+import { RecordShare } from '../models/record-share.model';
+import { AbilityFactory, AppAbility, Action } from './ability.factory';
+import { DynamicModelFactory } from '../object/models/dynamic-model.factory';
+import { subject } from '@casl/ability';
+
+@Injectable()
+export class AuthorizationService {
+  constructor(private abilityFactory: AbilityFactory) {}
+
+  /**
+   * Apply authorization scope to a query based on OWD and user permissions
+   * This determines which records the user can see
+   * Modifies the query in place and returns void
+   */
+  async applyScopeToQuery<T = any>(
+    query: any, // Accept both Knex and Objection query builders
+    objectDef: ObjectDefinition,
+    user: User & { roles?: any[] },
+    action: Action,
+    knex: Knex,
+  ): Promise<void> {
+    // Get user's ability
+    const recordShares = await this.getActiveRecordShares(objectDef.id, user.id, knex);
+    const ability = await this.abilityFactory.defineAbilityFor(user, recordShares);
+
+    // Check if user has the base permission for this action
+    // Use object ID, not API name, since permissions are stored by object ID
+    if (!ability.can(action, objectDef.id)) {
+      // No permission at all - return empty result
+      query.where(knex.raw('1 = 0'));
+      return;
+    }
+
+    // Check special permissions
+    const hasViewAll = ability.can('view_all', objectDef.id);
+    const hasModifyAll = ability.can('modify_all', objectDef.id);
+
+    // If user has view_all or modify_all, they can see all records
+    if (hasViewAll || hasModifyAll) {
+      // No filtering needed
+      return;
+    }
+
+    // Apply OWD (Org-Wide Default) restrictions
+    switch (objectDef.orgWideDefault) {
+      case 'public_read_write':
+        // Everyone can see all records
+        return;
+
+      case 'public_read':
+        // Everyone can see all records (write operations checked separately)
+        return;
+
+      case 'private':
+      default:
+        // Only owner and explicitly shared records
+        await this.applyPrivateScope(query, objectDef, user, recordShares, knex);
+        return;
+    }
+  }
+
+  /**
+   * Apply private scope: owner + shared records
+   */
+  private async applyPrivateScope<T = any>(
+    query: any, // Accept both Knex and Objection query builders
+    objectDef: ObjectDefinition,
+    user: User,
+    recordShares: RecordShare[],
+    knex: Knex,
+  ): Promise<void> {
+    const tableName = this.getTableName(objectDef.apiName);
+    
+    // Check if table has ownerId column
+    const hasOwner = await knex.schema.hasColumn(tableName, 'ownerId');
+
+    if (!hasOwner && recordShares.length === 0) {
+      // No ownership and no shares - user can't see anything
+      query.where(knex.raw('1 = 0'));
+      return;
+    }
+
+    // Build conditions: ownerId = user OR record shared with user
+    query.where((builder) => {
+      if (hasOwner) {
+        builder.orWhere(`${tableName}.ownerId`, user.id);
+      }
+
+      if (recordShares.length > 0) {
+        const sharedRecordIds = recordShares.map(share => share.recordId);
+        builder.orWhereIn(`${tableName}.id`, sharedRecordIds);
+      }
+    });
+  }
+
+  /**
+   * Check if user can perform action on a specific record
+   */
+  async canPerformAction(
+    action: Action,
+    objectDef: ObjectDefinition,
+    record: any,
+    user: User & { roles?: any[] },
+    knex: Knex,
+  ): Promise<boolean> {
+    const recordShares = await this.getActiveRecordShares(objectDef.id, user.id, knex);
+    const ability = await this.abilityFactory.defineAbilityFor(user, recordShares);
+
+    // Check base permission - use object ID not API name
+    if (!ability.can(action, objectDef.id)) {
+      return false;
+    }
+
+    // Check special permissions - use object ID not API name
+    const hasViewAll = ability.can('view_all', objectDef.id);
+    const hasModifyAll = ability.can('modify_all', objectDef.id);
+
+    // canViewAll only grants read access to all records
+    if (action === 'read' && hasViewAll) {
+      return true;
+    }
+
+    // canModifyAll grants edit/delete access to all records
+    if ((action === 'update' || action === 'delete') && hasModifyAll) {
+      return true;
+    }
+
+    // Check OWD
+    switch (objectDef.orgWideDefault) {
+      case 'public_read_write':
+        return true;
+
+      case 'public_read':
+        if (action === 'read') return true;
+        // For write actions, check ownership
+        return record.ownerId === user.id;
+
+      case 'private':
+      default:
+        // Check ownership
+        if (record.ownerId === user.id) return true;
+
+        // Check if record is shared with user
+        const share = recordShares.find(s => s.recordId === record.id);
+        if (share) {
+          if (action === 'read' && share.accessLevel.canRead) return true;
+          if (action === 'update' && share.accessLevel.canEdit) return true;
+          if (action === 'delete' && share.accessLevel.canDelete) return true;
+        }
+
+        return false;
+    }
+  }
+
+  /**
+   * Filter data based on field-level permissions
+   * Removes fields the user cannot read
+   */
+  async filterReadableFields(
+    data: any,
+    fields: FieldDefinition[],
+    user: User & { roles?: any[] },
+  ): Promise<any> {
+    const filtered: any = {};
+
+    // Always include id - it's required for navigation and record identification
+    if (data.id !== undefined) {
+      filtered.id = data.id;
+    }
+
+    for (const field of fields) {
+      if (this.abilityFactory.canAccessField(field.id, 'read', user)) {
+        if (data[field.apiName] !== undefined) {
+          filtered[field.apiName] = data[field.apiName];
+        }
+        
+        // For lookup fields, also include the related object (e.g., ownerId -> owner)
+        if (field.type === 'LOOKUP') {
+          const relationName = DynamicModelFactory.getRelationName(field.apiName);
+          if (data[relationName] !== undefined) {
+            filtered[relationName] = data[relationName];
+          }
+        }
+      }
+    }
+
+    return filtered;
+  }
+
+  /**
+   * Filter data based on field-level permissions
+   * Removes fields the user cannot edit
+   */
+  async filterEditableFields(
+    data: any,
+    fields: FieldDefinition[],
+    user: User & { roles?: any[] },
+  ): Promise<any> {
+    const filtered: any = {};
+
+    for (const field of fields) {
+      if (this.abilityFactory.canAccessField(field.id, 'edit', user)) {
+        if (data[field.apiName] !== undefined) {
+          filtered[field.apiName] = data[field.apiName];
+        }
+      }
+    }
+
+    return filtered;
+  }
+
+  /**
+   * Get active record shares for a user on an object
+   */
+  private async getActiveRecordShares(
+    objectDefinitionId: string,
+    userId: string,
+    knex: Knex,
+  ): Promise<RecordShare[]> {
+    const now = new Date();
+
+    return await RecordShare.query(knex)
+      .where('objectDefinitionId', objectDefinitionId)
+      .where('granteeUserId', userId)
+      .whereNull('revokedAt')
+      .where((builder) => {
+        builder.whereNull('expiresAt').orWhere('expiresAt', '>', now);
+      });
+  }
+
+  /**
+   * Check if user has permission to create records
+   */
+  async canCreate(
+    objectDef: ObjectDefinition,
+    user: User & { roles?: any[] },
+  ): Promise<boolean> {
+    const ability = await this.abilityFactory.defineAbilityFor(user, []);
+    return ability.can('create', objectDef.id);
+  }
+
+  /**
+   * Throw exception if user cannot perform action
+   */
+  async assertCanPerformAction(
+    action: Action,
+    objectDef: ObjectDefinition,
+    record: any,
+    user: User & { roles?: any[] },
+    knex: Knex,
+  ): Promise<void> {
+    const can = await this.canPerformAction(action, objectDef, record, user, knex);
+    if (!can) {
+      throw new ForbiddenException(`You do not have permission to ${action} this record`);
+    }
+  }
+
+  /**
+   * Get table name from API name
+   */
+  private getTableName(apiName: string): string {
+    // Convert CamelCase to snake_case and pluralize
+    const snakeCase = apiName
+      .replace(/([A-Z])/g, '_$1')
+      .toLowerCase()
+      .replace(/^_/, '');
+    
+    // Simple pluralization
+    if (snakeCase.endsWith('y')) {
+      return snakeCase.slice(0, -1) + 'ies';
+    } else if (snakeCase.endsWith('s')) {
+      return snakeCase;
+    } else {
+      return snakeCase + 's';
+    }
+  }
+}

backend/src/rbac/dto/create-record-share.dto.ts

@@ -0,0 +1,19 @@
+import { IsString, IsBoolean, IsOptional, IsDateString } from 'class-validator';
+
+export class CreateRecordShareDto {
+  @IsString()
+  granteeUserId: string;
+
+  @IsBoolean()
+  canRead: boolean;
+
+  @IsBoolean()
+  canEdit: boolean;
+
+  @IsBoolean()
+  canDelete: boolean;
+
+  @IsOptional()
+  @IsDateString()
+  expiresAt?: string;
+}

backend/src/rbac/rbac.module.ts

@@ -1,8 +1,16 @@
 import { Module } from '@nestjs/common';
 import { RbacService } from './rbac.service';
+import { AbilityFactory } from './ability.factory';
+import { AuthorizationService } from './authorization.service';
+import { SetupRolesController } from './setup-roles.controller';
+import { SetupUsersController } from './setup-users.controller';
+import { RecordSharingController } from './record-sharing.controller';
+import { TenantModule } from '../tenant/tenant.module';
 
 @Module({
-  providers: [RbacService],
-  exports: [RbacService],
+  imports: [TenantModule],
+  controllers: [SetupRolesController, SetupUsersController, RecordSharingController],
+  providers: [RbacService, AbilityFactory, AuthorizationService],
+  exports: [RbacService, AbilityFactory, AuthorizationService],
 })
 export class RbacModule {}

backend/src/rbac/record-sharing.controller.ts

@@ -0,0 +1,350 @@
+import {
+  Controller,
+  Get,
+  Post,
+  Delete,
+  Param,
+  Body,
+  UseGuards,
+  ForbiddenException,
+} from '@nestjs/common';
+import { JwtAuthGuard } from '../auth/jwt-auth.guard';
+import { TenantId } from '../tenant/tenant.decorator';
+import { CurrentUser } from '../auth/current-user.decorator';
+import { TenantDatabaseService } from '../tenant/tenant-database.service';
+import { RecordShare } from '../models/record-share.model';
+import { ObjectDefinition } from '../models/object-definition.model';
+import { User } from '../models/user.model';
+import { AuthorizationService } from './authorization.service';
+import { CreateRecordShareDto } from './dto/create-record-share.dto';
+
+@Controller('runtime/objects/:objectApiName/records/:recordId/shares')
+@UseGuards(JwtAuthGuard)
+export class RecordSharingController {
+  constructor(
+    private tenantDbService: TenantDatabaseService,
+    private authService: AuthorizationService,
+  ) {}
+
+  @Get()
+  async getRecordShares(
+    @TenantId() tenantId: string,
+    @Param('objectApiName') objectApiName: string,
+    @Param('recordId') recordId: string,
+    @CurrentUser() currentUser: any,
+  ) {
+    const resolvedTenantId = await this.tenantDbService.resolveTenantId(tenantId);
+    const knex = await this.tenantDbService.getTenantKnexById(resolvedTenantId);
+
+    // Get object definition
+    const objectDef = await ObjectDefinition.query(knex)
+      .findOne({ apiName: objectApiName });
+
+    if (!objectDef) {
+      throw new Error('Object not found');
+    }
+
+    // Get the record to check ownership
+    const tableName = this.getTableName(
+      objectDef.apiName,
+      objectDef.label,
+      objectDef.pluralLabel,
+    );
+    const record = await knex(tableName)
+      .where({ id: recordId })
+      .first();
+
+    if (!record) {
+      throw new Error('Record not found');
+    }
+
+    // Only owner can view shares
+    if (record.ownerId !== currentUser.userId) {
+      // Check if user has modify all permission
+      const user: any = await User.query(knex)
+        .findById(currentUser.userId)
+        .withGraphFetched('roles.objectPermissions');
+
+      if (!user) {
+        throw new ForbiddenException('User not found');
+      }
+
+      const hasModifyAll = user.roles?.some(role =>
+        role.objectPermissions?.some(
+          perm => perm.objectDefinitionId === objectDef.id && perm.canModifyAll
+        )
+      );
+
+      if (!hasModifyAll) {
+        throw new ForbiddenException('Only the record owner or users with Modify All permission can view shares');
+      }
+    }
+
+    // Get all active shares for this record
+    const shares = await RecordShare.query(knex)
+      .where({ objectDefinitionId: objectDef.id, recordId })
+      .whereNull('revokedAt')
+      .where(builder => {
+        builder.whereNull('expiresAt').orWhere('expiresAt', '>', new Date());
+      })
+      .withGraphFetched('[granteeUser]')
+      .orderBy('createdAt', 'desc');
+
+    return shares;
+  }
+
+  @Post()
+  async createRecordShare(
+    @TenantId() tenantId: string,
+    @Param('objectApiName') objectApiName: string,
+    @Param('recordId') recordId: string,
+    @CurrentUser() currentUser: any,
+    @Body() data: CreateRecordShareDto,
+  ) {
+    const resolvedTenantId = await this.tenantDbService.resolveTenantId(tenantId);
+    const knex = await this.tenantDbService.getTenantKnexById(resolvedTenantId);
+
+    // Get object definition
+    const objectDef = await ObjectDefinition.query(knex)
+      .findOne({ apiName: objectApiName });
+
+    if (!objectDef) {
+      throw new Error('Object not found');
+    }
+
+    // Get the record to check ownership
+    const tableName = this.getTableName(
+      objectDef.apiName,
+      objectDef.label,
+      objectDef.pluralLabel,
+    );
+    const record = await knex(tableName)
+      .where({ id: recordId })
+      .first();
+
+    if (!record) {
+      throw new Error('Record not found');
+    }
+
+    // Check if user can share - either owner or has modify permissions
+    const canShare = await this.canUserShareRecord(
+      currentUser.userId,
+      record,
+      objectDef,
+      knex,
+    );
+
+    if (!canShare) {
+      throw new ForbiddenException('You do not have permission to share this record');
+    }
+
+    // Cannot share with self
+    if (data.granteeUserId === currentUser.userId) {
+      throw new Error('Cannot share record with yourself');
+    }
+
+    // Check if share already exists
+    const existingShare = await RecordShare.query(knex)
+      .where({
+        objectDefinitionId: objectDef.id,
+        recordId,
+        granteeUserId: data.granteeUserId,
+      })
+      .whereNull('revokedAt')
+      .first();
+
+    if (existingShare) {
+      // Update existing share
+      const updated = await RecordShare.query(knex)
+        .patchAndFetchById(existingShare.id, {
+          accessLevel: {
+            canRead: data.canRead,
+            canEdit: data.canEdit,
+            canDelete: data.canDelete,
+          },
+          // Convert ISO string to MySQL datetime format
+          expiresAt: data.expiresAt 
+            ? knex.raw('?', [new Date(data.expiresAt).toISOString().slice(0, 19).replace('T', ' ')]) 
+            : null,
+        } as any);
+
+      return RecordShare.query(knex)
+        .findById(updated.id)
+        .withGraphFetched('[granteeUser]');
+    }
+
+    // Create new share
+    const share = await RecordShare.query(knex).insertAndFetch({
+      objectDefinitionId: objectDef.id,
+      recordId,
+      granteeUserId: data.granteeUserId,
+      grantedByUserId: currentUser.userId,
+      accessLevel: {
+        canRead: data.canRead,
+        canEdit: data.canEdit,
+        canDelete: data.canDelete,
+      },
+      // Convert ISO string to MySQL datetime format: YYYY-MM-DD HH:MM:SS
+      expiresAt: data.expiresAt 
+        ? knex.raw('?', [new Date(data.expiresAt).toISOString().slice(0, 19).replace('T', ' ')]) 
+        : null,
+    } as any);
+
+    return RecordShare.query(knex)
+      .findById(share.id)
+      .withGraphFetched('[granteeUser]');
+  }
+
+  @Delete(':shareId')
+  async deleteRecordShare(
+    @TenantId() tenantId: string,
+    @Param('objectApiName') objectApiName: string,
+    @Param('recordId') recordId: string,
+    @Param('shareId') shareId: string,
+    @CurrentUser() currentUser: any,
+  ) {
+    const resolvedTenantId = await this.tenantDbService.resolveTenantId(tenantId);
+    const knex = await this.tenantDbService.getTenantKnexById(resolvedTenantId);
+
+    // Get object definition
+    const objectDef = await ObjectDefinition.query(knex)
+      .findOne({ apiName: objectApiName });
+
+    if (!objectDef) {
+      throw new Error('Object not found');
+    }
+
+    // Get the record to check ownership
+    const tableName = this.getTableName(
+      objectDef.apiName,
+      objectDef.label,
+      objectDef.pluralLabel,
+    );
+    const record = await knex(tableName)
+      .where({ id: recordId })
+      .first();
+
+    if (!record) {
+      throw new Error('Record not found');
+    }
+
+    // Only owner can revoke shares
+    if (record.ownerId !== currentUser.userId) {
+      // Check if user has modify all permission
+      const user: any = await User.query(knex)
+        .findById(currentUser.userId)
+        .withGraphFetched('roles.objectPermissions');
+
+      if (!user) {
+        throw new ForbiddenException('User not found');
+      }
+
+      const hasModifyAll = user.roles?.some(role =>
+        role.objectPermissions?.some(
+          perm => perm.objectDefinitionId === objectDef.id && perm.canModifyAll
+        )
+      );
+
+      if (!hasModifyAll) {
+        throw new ForbiddenException('Only the record owner or users with Modify All permission can revoke shares');
+      }
+    }
+
+    // Revoke the share (soft delete)
+    await RecordShare.query(knex)
+      .patchAndFetchById(shareId, {
+        revokedAt: knex.fn.now() as any,
+      });
+
+    return { success: true };
+  }
+
+  private async canUserShareRecord(
+    userId: string,
+    record: any,
+    objectDef: ObjectDefinition,
+    knex: any,
+  ): Promise<boolean> {
+    // Owner can always share
+    if (record.ownerId === userId) {
+      return true;
+    }
+
+    // Check if user has modify all or edit permissions
+    const user: any = await User.query(knex)
+      .findById(userId)
+      .withGraphFetched('roles.objectPermissions');
+
+    if (!user) {
+      return false;
+    }
+
+    // Check for canModifyAll permission
+    const hasModifyAll = user.roles?.some(role =>
+      role.objectPermissions?.some(
+        perm => perm.objectDefinitionId === objectDef.id && perm.canModifyAll
+      )
+    );
+
+    if (hasModifyAll) {
+      return true;
+    }
+
+    // Check for canEdit permission (user needs edit to share)
+    const hasEdit = user.roles?.some(role =>
+      role.objectPermissions?.some(
+        perm => perm.objectDefinitionId === objectDef.id && perm.canEdit
+      )
+    );
+
+    // If user has edit permission, check if they can actually edit this record
+    // by using the authorization service
+    if (hasEdit) {
+      try {
+        await this.authService.assertCanPerformAction(
+          'update',
+          objectDef,
+          record,
+          user,
+          knex,
+        );
+        return true;
+      } catch {
+        return false;
+      }
+    }
+
+    return false;
+  }
+
+  private getTableName(apiName: string, objectLabel?: string, pluralLabel?: string): string {
+    const toSnakePlural = (source: string): string => {
+      const cleaned = source.replace(/[\s-]+/g, '_');
+      const snake = cleaned
+        .replace(/([a-z0-9])([A-Z])/g, '$1_$2')
+        .replace(/__+/g, '_')
+        .toLowerCase()
+        .replace(/^_/, '');
+
+      if (snake.endsWith('y')) return `${snake.slice(0, -1)}ies`;
+      if (snake.endsWith('s')) return snake;
+      return `${snake}s`;
+    };
+
+    const fromApi = toSnakePlural(apiName);
+    const fromLabel = objectLabel ? toSnakePlural(objectLabel) : null;
+    const fromPlural = pluralLabel ? toSnakePlural(pluralLabel) : null;
+
+    if (fromLabel && fromLabel.includes('_') && !fromApi.includes('_')) {
+      return fromLabel;
+    }
+    if (fromPlural && fromPlural.includes('_') && !fromApi.includes('_')) {
+      return fromPlural;
+    }
+
+    if (fromLabel && fromLabel !== fromApi) return fromLabel;
+    if (fromPlural && fromPlural !== fromApi) return fromPlural;
+
+    return fromApi;
+  }
+}

backend/src/rbac/setup-roles.controller.ts

@@ -0,0 +1,141 @@
+import {
+  Controller,
+  Get,
+  Post,
+  Patch,
+  Delete,
+  Param,
+  Body,
+  UseGuards,
+} from '@nestjs/common';
+import { JwtAuthGuard } from '../auth/jwt-auth.guard';
+import { TenantId } from '../tenant/tenant.decorator';
+import { TenantDatabaseService } from '../tenant/tenant-database.service';
+import { Role } from '../models/role.model';
+
+@Controller('setup/roles')
+@UseGuards(JwtAuthGuard)
+export class SetupRolesController {
+  constructor(private tenantDbService: TenantDatabaseService) {}
+
+  @Get()
+  async getRoles(@TenantId() tenantId: string) {
+    const resolvedTenantId = await this.tenantDbService.resolveTenantId(tenantId);
+    const knex = await this.tenantDbService.getTenantKnexById(resolvedTenantId);
+    
+    return await Role.query(knex).select('*').orderBy('name', 'asc');
+  }
+
+  @Get(':id')
+  async getRole(
+    @TenantId() tenantId: string,
+    @Param('id') id: string,
+  ) {
+    const resolvedTenantId = await this.tenantDbService.resolveTenantId(tenantId);
+    const knex = await this.tenantDbService.getTenantKnexById(resolvedTenantId);
+    
+    return await Role.query(knex).findById(id).withGraphFetched('users');
+  }
+
+  @Post()
+  async createRole(
+    @TenantId() tenantId: string,
+    @Body() data: { name: string; description?: string; guardName?: string },
+  ) {
+    const resolvedTenantId = await this.tenantDbService.resolveTenantId(tenantId);
+    const knex = await this.tenantDbService.getTenantKnexById(resolvedTenantId);
+    
+    const role = await Role.query(knex).insert({
+      name: data.name,
+      description: data.description,
+      guardName: data.guardName || 'tenant',
+    });
+    
+    return role;
+  }
+
+  @Patch(':id')
+  async updateRole(
+    @TenantId() tenantId: string,
+    @Param('id') id: string,
+    @Body() data: { name?: string; description?: string; guardName?: string },
+  ) {
+    const resolvedTenantId = await this.tenantDbService.resolveTenantId(tenantId);
+    const knex = await this.tenantDbService.getTenantKnexById(resolvedTenantId);
+    
+    const updateData: any = {};
+    
+    if (data.name) updateData.name = data.name;
+    if (data.description !== undefined) updateData.description = data.description;
+    if (data.guardName) updateData.guardName = data.guardName;
+    
+    const role = await Role.query(knex).patchAndFetchById(id, updateData);
+    return role;
+  }
+
+  @Delete(':id')
+  async deleteRole(
+    @TenantId() tenantId: string,
+    @Param('id') id: string,
+  ) {
+    const resolvedTenantId = await this.tenantDbService.resolveTenantId(tenantId);
+    const knex = await this.tenantDbService.getTenantKnexById(resolvedTenantId);
+    
+    // Delete role user assignments first
+    await knex('user_roles').where({ roleId: id }).delete();
+    
+    // Delete role permissions
+    await knex('role_permissions').where({ roleId: id }).delete();
+    await knex('role_object_permissions').where({ roleId: id }).delete();
+    
+    // Delete the role
+    await Role.query(knex).deleteById(id);
+    
+    return { success: true };
+  }
+
+  @Post(':roleId/users')
+  async addUserToRole(
+    @TenantId() tenantId: string,
+    @Param('roleId') roleId: string,
+    @Body() data: { userId: string },
+  ) {
+    const resolvedTenantId = await this.tenantDbService.resolveTenantId(tenantId);
+    const knex = await this.tenantDbService.getTenantKnexById(resolvedTenantId);
+    
+    // Check if assignment already exists
+    const existing = await knex('user_roles')
+      .where({ userId: data.userId, roleId })
+      .first();
+    
+    if (existing) {
+      return { success: true, message: 'User already assigned' };
+    }
+    
+    await knex('user_roles').insert({
+      id: knex.raw('(UUID())'),
+      userId: data.userId,
+      roleId,
+      created_at: knex.fn.now(),
+      updated_at: knex.fn.now(),
+    });
+    
+    return { success: true };
+  }
+
+  @Delete(':roleId/users/:userId')
+  async removeUserFromRole(
+    @TenantId() tenantId: string,
+    @Param('roleId') roleId: string,
+    @Param('userId') userId: string,
+  ) {
+    const resolvedTenantId = await this.tenantDbService.resolveTenantId(tenantId);
+    const knex = await this.tenantDbService.getTenantKnexById(resolvedTenantId);
+    
+    await knex('user_roles')
+      .where({ userId, roleId })
+      .delete();
+    
+    return { success: true };
+  }
+}

backend/src/rbac/setup-users.controller.ts

@@ -0,0 +1,146 @@
+import {
+  Controller,
+  Get,
+  Post,
+  Patch,
+  Delete,
+  Param,
+  Body,
+  UseGuards,
+} from '@nestjs/common';
+import { JwtAuthGuard } from '../auth/jwt-auth.guard';
+import { TenantId } from '../tenant/tenant.decorator';
+import { TenantDatabaseService } from '../tenant/tenant-database.service';
+import { User } from '../models/user.model';
+import * as bcrypt from 'bcrypt';
+
+@Controller('setup/users')
+@UseGuards(JwtAuthGuard)
+export class SetupUsersController {
+  constructor(private tenantDbService: TenantDatabaseService) {}
+
+  @Get()
+  async getUsers(@TenantId() tenantId: string) {
+    const resolvedTenantId = await this.tenantDbService.resolveTenantId(tenantId);
+    const knex = await this.tenantDbService.getTenantKnexById(resolvedTenantId);
+    return await User.query(knex).withGraphFetched('roles');
+  }
+
+  @Get(':id')
+  async getUser(
+    @TenantId() tenantId: string,
+    @Param('id') id: string,
+  ) {
+    const resolvedTenantId = await this.tenantDbService.resolveTenantId(tenantId);
+    const knex = await this.tenantDbService.getTenantKnexById(resolvedTenantId);
+    return await User.query(knex).findById(id).withGraphFetched('roles');
+  }
+
+  @Post()
+  async createUser(
+    @TenantId() tenantId: string,
+    @Body() data: { email: string; password: string; firstName?: string; lastName?: string },
+  ) {
+    const resolvedTenantId = await this.tenantDbService.resolveTenantId(tenantId);
+    const knex = await this.tenantDbService.getTenantKnexById(resolvedTenantId);
+    
+    // Hash password
+    const hashedPassword = await bcrypt.hash(data.password, 10);
+    
+    const user = await User.query(knex).insert({
+      email: data.email,
+      password: hashedPassword,
+      firstName: data.firstName,
+      lastName: data.lastName,
+      isActive: true,
+    });
+    
+    return user;
+  }
+
+  @Patch(':id')
+  async updateUser(
+    @TenantId() tenantId: string,
+    @Param('id') id: string,
+    @Body() data: { email?: string; password?: string; firstName?: string; lastName?: string },
+  ) {
+    const resolvedTenantId = await this.tenantDbService.resolveTenantId(tenantId);
+    const knex = await this.tenantDbService.getTenantKnexById(resolvedTenantId);
+    
+    const updateData: any = {};
+    
+    if (data.email) updateData.email = data.email;
+    if (data.firstName !== undefined) updateData.firstName = data.firstName;
+    if (data.lastName !== undefined) updateData.lastName = data.lastName;
+    
+    // Hash password if provided
+    if (data.password) {
+      updateData.password = await bcrypt.hash(data.password, 10);
+    }
+    
+    const user = await User.query(knex).patchAndFetchById(id, updateData);
+    return user;
+  }
+
+  @Delete(':id')
+  async deleteUser(
+    @TenantId() tenantId: string,
+    @Param('id') id: string,
+  ) {
+    const resolvedTenantId = await this.tenantDbService.resolveTenantId(tenantId);
+    const knex = await this.tenantDbService.getTenantKnexById(resolvedTenantId);
+    
+    // Delete user role assignments first
+    await knex('user_roles').where({ userId: id }).delete();
+    
+    // Delete the user
+    await User.query(knex).deleteById(id);
+    
+    return { success: true };
+  }
+
+  @Post(':userId/roles')
+  async addRoleToUser(
+    @TenantId() tenantId: string,
+    @Param('userId') userId: string,
+    @Body() data: { roleId: string },
+  ) {
+    const resolvedTenantId = await this.tenantDbService.resolveTenantId(tenantId);
+    const knex = await this.tenantDbService.getTenantKnexById(resolvedTenantId);
+    
+    // Check if assignment already exists
+    const existing = await knex('user_roles')
+      .where({ userId, roleId: data.roleId })
+      .first();
+    
+    if (existing) {
+      return { success: true, message: 'Role already assigned' };
+    }
+    
+    await knex('user_roles').insert({
+      id: knex.raw('(UUID())'),
+      userId,
+      roleId: data.roleId,
+      created_at: knex.fn.now(),
+      updated_at: knex.fn.now(),
+    });
+    
+    return { success: true };
+  }
+
+  @Delete(':userId/roles/:roleId')
+  async removeRoleFromUser(
+    @TenantId() tenantId: string,
+    @Param('userId') userId: string,
+    @Param('roleId') roleId: string,
+  ) {
+    const resolvedTenantId = await this.tenantDbService.resolveTenantId(tenantId);
+    const knex = await this.tenantDbService.getTenantKnexById(resolvedTenantId);
+    
+    await knex('user_roles')
+      .where({ userId, roleId })
+      .delete();
+    
+    return { success: true };
+  }
+}

backend/src/search/meilisearch.module.ts

@@ -0,0 +1,8 @@
+import { Module } from '@nestjs/common';
+import { MeilisearchService } from './meilisearch.service';
+
+@Module({
+  providers: [MeilisearchService],
+  exports: [MeilisearchService],
+})
+export class MeilisearchModule {}

backend/src/search/meilisearch.service.ts

@@ -0,0 +1,244 @@
+import { Injectable, Logger } from '@nestjs/common';
+import * as http from 'http';
+import * as https from 'https';
+
+type MeiliConfig = {
+  host: string;
+  apiKey?: string;
+  indexPrefix: string;
+};
+
+@Injectable()
+export class MeilisearchService {
+  private readonly logger = new Logger(MeilisearchService.name);
+
+  isEnabled(): boolean {
+    return Boolean(this.getConfig());
+  }
+
+  async searchRecord(
+    tenantId: string,
+    objectApiName: string,
+    query: string,
+    displayField?: string,
+  ): Promise<{ id: string; hit: any } | null> {
+    const config = this.getConfig();
+    if (!config) return null;
+
+    const indexName = this.buildIndexName(config, tenantId, objectApiName);
+    const url = `${config.host}/indexes/${encodeURIComponent(indexName)}/search`;
+
+    console.log('querying Meilisearch index:', { indexName, query, displayField });
+
+    try {
+      const response = await this.requestJson('POST', url, {
+        q: query,
+        limit: 5,
+      }, this.buildHeaders(config));
+
+      if (!this.isSuccessStatus(response.status)) {
+        this.logger.warn(
+          `Meilisearch query failed for index ${indexName}: ${response.status}`,
+        );
+        return null;
+      }
+
+      const hits = Array.isArray(response.body?.hits) ? response.body.hits : [];
+      if (hits.length === 0) return null;
+
+      if (displayField) {
+        const loweredQuery = query.toLowerCase();
+        const exactMatch = hits.find((hit: any) => {
+          const value = hit?.[displayField];
+          return value && String(value).toLowerCase() === loweredQuery;
+        });
+        if (exactMatch?.id) {
+          return { id: exactMatch.id, hit: exactMatch };
+        }
+      }
+
+      const match = hits[0];
+      if (match?.id) {
+        return { id: match.id, hit: match };
+      }
+    } catch (error) {
+      this.logger.warn(`Meilisearch lookup failed: ${error.message}`);
+    }
+
+    return null;
+  }
+
+  async searchRecords(
+    tenantId: string,
+    objectApiName: string,
+    query: string,
+    options?: { limit?: number; offset?: number },
+  ): Promise<{ hits: any[]; total: number }> {
+    const config = this.getConfig();
+    if (!config) return { hits: [], total: 0 };
+
+    const indexName = this.buildIndexName(config, tenantId, objectApiName);
+    const url = `${config.host}/indexes/${encodeURIComponent(indexName)}/search`;
+    const limit = Number.isFinite(Number(options?.limit)) ? Number(options?.limit) : 20;
+    const offset = Number.isFinite(Number(options?.offset)) ? Number(options?.offset) : 0;
+
+    try {
+      const response = await this.requestJson('POST', url, {
+        q: query,
+        limit,
+        offset,
+      }, this.buildHeaders(config));
+
+      console.log('Meilisearch response body:', response.body);
+
+      if (!this.isSuccessStatus(response.status)) {
+        this.logger.warn(
+          `Meilisearch query failed for index ${indexName}: ${response.status}`,
+        );
+        return { hits: [], total: 0 };
+      }
+
+      const hits = Array.isArray(response.body?.hits) ? response.body.hits : [];
+      const total =
+        response.body?.estimatedTotalHits ??
+        response.body?.nbHits ??
+        hits.length;
+      return { hits, total };
+    } catch (error) {
+      this.logger.warn(`Meilisearch query failed: ${error.message}`);
+      return { hits: [], total: 0 };
+    }
+  }
+
+  async upsertRecord(
+    tenantId: string,
+    objectApiName: string,
+    record: Record<string, any>,
+    fieldsToIndex: string[],
+  ): Promise<void> {
+    const config = this.getConfig();
+    if (!config || !record?.id) return;
+
+    const indexName = this.buildIndexName(config, tenantId, objectApiName);
+    const url = `${config.host}/indexes/${encodeURIComponent(indexName)}/documents?primaryKey=id`;
+    const document = this.pickRecordFields(record, fieldsToIndex);
+
+    try {
+      const response = await this.requestJson('POST', url, [document], this.buildHeaders(config));
+      if (!this.isSuccessStatus(response.status)) {
+        this.logger.warn(
+          `Meilisearch upsert failed for index ${indexName}: ${response.status}`,
+        );
+      }
+    } catch (error) {
+      this.logger.warn(`Meilisearch upsert failed: ${error.message}`);
+    }
+  }
+
+  async deleteRecord(
+    tenantId: string,
+    objectApiName: string,
+    recordId: string,
+  ): Promise<void> {
+    const config = this.getConfig();
+    if (!config || !recordId) return;
+
+    const indexName = this.buildIndexName(config, tenantId, objectApiName);
+    const url = `${config.host}/indexes/${encodeURIComponent(indexName)}/documents/${encodeURIComponent(recordId)}`;
+
+    try {
+      const response = await this.requestJson('DELETE', url, undefined, this.buildHeaders(config));
+      if (!this.isSuccessStatus(response.status)) {
+        this.logger.warn(
+          `Meilisearch delete failed for index ${indexName}: ${response.status}`,
+        );
+      }
+    } catch (error) {
+      this.logger.warn(`Meilisearch delete failed: ${error.message}`);
+    }
+  }
+
+  private getConfig(): MeiliConfig | null {
+    const host = process.env.MEILI_HOST || process.env.MEILISEARCH_HOST;
+    if (!host) return null;
+    const trimmedHost = host.replace(/\/+$/, '');
+    const apiKey = process.env.MEILI_API_KEY || process.env.MEILISEARCH_API_KEY;
+    const indexPrefix = process.env.MEILI_INDEX_PREFIX || 'tenant_';
+    return { host: trimmedHost, apiKey, indexPrefix };
+  }
+
+  private buildIndexName(config: MeiliConfig, tenantId: string, objectApiName: string): string {
+    return `${config.indexPrefix}${tenantId}_${objectApiName}`.toLowerCase();
+  }
+
+  private buildHeaders(config: MeiliConfig): Record<string, string> {
+    const headers: Record<string, string> = {
+      'Content-Type': 'application/json',
+      Accept: 'application/json',
+    };
+    if (config.apiKey) {
+      headers['X-Meili-API-Key'] = config.apiKey;
+      headers.Authorization = `Bearer ${config.apiKey}`;
+    }
+    return headers;
+  }
+
+  private pickRecordFields(record: Record<string, any>, fields: string[]): Record<string, any> {
+    const document: Record<string, any> = { id: record.id };
+    for (const field of fields) {
+      if (record[field] !== undefined) {
+        document[field] = record[field];
+      }
+    }
+    return document;
+  }
+
+  private isSuccessStatus(status: number): boolean {
+    return status >= 200 && status < 300;
+  }
+
+  private requestJson(
+    method: 'POST' | 'DELETE',
+    url: string,
+    payload: any,
+    headers: Record<string, string>,
+  ): Promise<{ status: number; body: any }> {
+    return new Promise((resolve, reject) => {
+      const parsedUrl = new URL(url);
+      const client = parsedUrl.protocol === 'https:' ? https : http;
+      const request = client.request(
+        {
+          method,
+          hostname: parsedUrl.hostname,
+          port: parsedUrl.port,
+          path: `${parsedUrl.pathname}${parsedUrl.search}`,
+          headers,
+        },
+        (response) => {
+          let data = '';
+          response.on('data', (chunk) => {
+            data += chunk;
+          });
+          response.on('end', () => {
+            if (!data) {
+              resolve({ status: response.statusCode || 0, body: null });
+              return;
+            }
+            try {
+              const body = JSON.parse(data);
+              resolve({ status: response.statusCode || 0, body });
+            } catch (error) {
+              reject(error);
+            }
+          });
+        },
+      );
+
+      request.on('error', reject);
+      if (payload !== undefined) {
+        request.write(JSON.stringify(payload));
+      }
+      request.end();
+    });
+  }
+}

backend/src/task/task.controller.ts

@@ -0,0 +1,63 @@
+import { Controller, Get, Post, Patch, Body, Param, Query, UseGuards } from '@nestjs/common';
+import { TaskService } from './task.service';
+import { JwtAuthGuard } from '../auth/jwt-auth.guard';
+import { TenantId } from '../tenant/tenant.decorator';
+
+@Controller('tasks')
+@UseGuards(JwtAuthGuard)
+export class TaskController {
+  constructor(private taskService: TaskService) {}
+
+  @Get()
+  async listTasks(
+    @TenantId() tenantId: string,
+    @Query('status') status?: string,
+    @Query('assignedToId') assignedToId?: string,
+    @Query('relatedObjectType') relatedObjectType?: string,
+    @Query('relatedObjectId') relatedObjectId?: string,
+  ) {
+    return this.taskService.listTasks(tenantId, {
+      status,
+      assignedToId,
+      relatedObjectType,
+      relatedObjectId,
+    });
+  }
+
+  @Post()
+  async createTask(
+    @TenantId() tenantId: string,
+    @Body()
+    body: {
+      title: string;
+      description?: string;
+      status?: string;
+      priority?: string;
+      dueAt?: string;
+      assignedToId?: string;
+      relatedObjectType?: string;
+      relatedObjectId?: string;
+    },
+  ) {
+    return this.taskService.createTask(tenantId, body);
+  }
+
+  @Patch(':taskId')
+  async updateTask(
+    @TenantId() tenantId: string,
+    @Param('taskId') taskId: string,
+    @Body()
+    body: {
+      title?: string;
+      description?: string;
+      status?: string;
+      priority?: string;
+      dueAt?: string;
+      assignedToId?: string;
+      relatedObjectType?: string;
+      relatedObjectId?: string;
+    },
+  ) {
+    return this.taskService.updateTask(tenantId, taskId, body);
+  }
+}

backend/src/task/task.module.ts

@@ -0,0 +1,12 @@
+import { Module } from '@nestjs/common';
+import { TaskController } from './task.controller';
+import { TaskService } from './task.service';
+import { TenantModule } from '../tenant/tenant.module';
+
+@Module({
+  imports: [TenantModule],
+  controllers: [TaskController],
+  providers: [TaskService],
+  exports: [TaskService],
+})
+export class TaskModule {}

backend/src/task/task.service.ts

@@ -0,0 +1,91 @@
+import { Injectable } from '@nestjs/common';
+import { TenantDatabaseService } from '../tenant/tenant-database.service';
+import { Task } from '../models/task.model';
+
+export interface TaskInput {
+  title: string;
+  description?: string;
+  status?: string;
+  priority?: string;
+  dueAt?: string | Date | null;
+  assignedToId?: string | null;
+  relatedObjectType?: string | null;
+  relatedObjectId?: string | null;
+}
+
+@Injectable()
+export class TaskService {
+  constructor(private tenantDbService: TenantDatabaseService) {}
+
+  private async getKnex(tenantId: string) {
+    const resolved = await this.tenantDbService.resolveTenantId(tenantId);
+    return this.tenantDbService.getTenantKnexById(resolved);
+  }
+
+  async listTasks(
+    tenantId: string,
+    filters: {
+      status?: string;
+      assignedToId?: string;
+      relatedObjectType?: string;
+      relatedObjectId?: string;
+    },
+  ) {
+    const knex = await this.getKnex(tenantId);
+    return Task.query(knex)
+      .modify((qb) => {
+        if (filters.status) qb.where('status', filters.status);
+        if (filters.assignedToId) qb.where('assignedToId', filters.assignedToId);
+        if (filters.relatedObjectType)
+          qb.where('relatedObjectType', filters.relatedObjectType);
+        if (filters.relatedObjectId) qb.where('relatedObjectId', filters.relatedObjectId);
+      })
+      .orderBy('createdAt', 'desc');
+  }
+
+  async createTask(tenantId: string, input: TaskInput) {
+    const knex = await this.getKnex(tenantId);
+    return Task.query(knex).insert({
+      title: input.title,
+      description: input.description,
+      status: input.status ?? 'open',
+      priority: input.priority,
+      dueAt: input.dueAt ? new Date(input.dueAt) : null,
+      assignedToId: input.assignedToId ?? null,
+      relatedObjectType: input.relatedObjectType ?? null,
+      relatedObjectId: input.relatedObjectId ?? null,
+    });
+  }
+
+  async updateTask(tenantId: string, taskId: string, input: Partial<TaskInput>) {
+    const knex = await this.getKnex(tenantId);
+    return Task.query(knex).patchAndFetchById(taskId, {
+      title: input.title,
+      description: input.description,
+      status: input.status,
+      priority: input.priority,
+      dueAt: input.dueAt ? new Date(input.dueAt) : undefined,
+      assignedToId: input.assignedToId ?? undefined,
+      relatedObjectType: input.relatedObjectType ?? undefined,
+      relatedObjectId: input.relatedObjectId ?? undefined,
+    });
+  }
+
+  async updateTaskByRelated(
+    tenantId: string,
+    relatedObjectType: string,
+    relatedObjectId: string,
+    input: Partial<TaskInput>,
+  ) {
+    const knex = await this.getKnex(tenantId);
+    return Task.query(knex)
+      .patch({
+        status: input.status,
+        dueAt: input.dueAt ? new Date(input.dueAt) : undefined,
+      })
+      .where({
+        relatedObjectType,
+        relatedObjectId,
+      });
+  }
+}

backend/src/tenant/tenant-database.service.ts

@@ -242,4 +242,26 @@ export class TenantDatabaseService {
     decrypted += decipher.final('utf8');
     return decrypted;
   }
+
+  /**
+   * Encrypt integrations config JSON object
+   * @param config - Plain object containing integration credentials
+   * @returns Encrypted JSON string
+   */
+  encryptIntegrationsConfig(config: any): string {
+    if (!config) return null;
+    const jsonString = JSON.stringify(config);
+    return this.encryptPassword(jsonString);
+  }
+
+  /**
+   * Decrypt integrations config JSON string
+   * @param encryptedConfig - Encrypted JSON string
+   * @returns Plain object with integration credentials
+   */
+  decryptIntegrationsConfig(encryptedConfig: string): any {
+    if (!encryptedConfig) return null;
+    const decrypted = this.decryptPassword(encryptedConfig);
+    return JSON.parse(decrypted);
+  }
 }

backend/src/tenant/tenant-provisioning.service.ts

@@ -176,7 +176,7 @@ export class TenantProvisioningService {
    * Seed default data for new tenant
    */
   private async seedDefaultData(tenantId: string) {
-    const tenantKnex = await this.tenantDbService.getTenantKnex(tenantId);
+    const tenantKnex = await this.tenantDbService.getTenantKnexById(tenantId);
 
     try {
       // Create default roles

backend/src/tenant/tenant.controller.ts

@@ -0,0 +1,155 @@
+import {
+  Controller,
+  Get,
+  Put,
+  Body,
+  UseGuards,
+  Req,
+} from '@nestjs/common';
+import { JwtAuthGuard } from '../auth/jwt-auth.guard';
+import { TenantDatabaseService } from './tenant-database.service';
+import { getCentralPrisma } from '../prisma/central-prisma.service';
+import { TenantId } from './tenant.decorator';
+
+@Controller('tenant')
+@UseGuards(JwtAuthGuard)
+export class TenantController {
+  constructor(private readonly tenantDbService: TenantDatabaseService) {}
+
+  /**
+   * Get integrations configuration for the current tenant
+   */
+  @Get('integrations')
+  async getIntegrationsConfig(@TenantId() domain: string) {
+    const centralPrisma = getCentralPrisma();
+    
+    // Look up tenant by domain
+    const domainRecord = await centralPrisma.domain.findUnique({
+      where: { domain },
+      include: { tenant: { select: { id: true, integrationsConfig: true } } },
+    });
+
+    if (!domainRecord?.tenant || !domainRecord.tenant.integrationsConfig) {
+      return { data: null };
+    }
+
+    // Decrypt the config
+    const config = this.tenantDbService.decryptIntegrationsConfig(
+      domainRecord.tenant.integrationsConfig as any,
+    );
+
+    // Return config with sensitive fields masked
+    const maskedConfig = this.maskSensitiveFields(config);
+
+    return { data: maskedConfig };
+  }
+
+  /**
+   * Update integrations configuration for the current tenant
+   */
+  @Put('integrations')
+  async updateIntegrationsConfig(
+    @TenantId() domain: string,
+    @Body() body: { integrationsConfig: any },
+  ) {
+    const { integrationsConfig } = body;
+
+    if (!domain) {
+      throw new Error('Domain is missing from request');
+    }
+
+    // Look up tenant by domain
+    const centralPrisma = getCentralPrisma();
+    const domainRecord = await centralPrisma.domain.findUnique({
+      where: { domain },
+      include: { tenant: { select: { id: true, integrationsConfig: true } } },
+    });
+
+    if (!domainRecord?.tenant) {
+      throw new Error(`Tenant with domain ${domain} not found`);
+    }
+
+    // Merge with existing config to preserve masked values
+    let finalConfig = integrationsConfig;
+    if (domainRecord.tenant.integrationsConfig) {
+      const existingConfig = this.tenantDbService.decryptIntegrationsConfig(
+        domainRecord.tenant.integrationsConfig as any,
+      );
+
+      // Replace masked values with actual values from existing config
+      finalConfig = this.unmaskConfig(integrationsConfig, existingConfig);
+    }
+
+    // Encrypt the config
+    const encryptedConfig = this.tenantDbService.encryptIntegrationsConfig(
+      finalConfig,
+    );
+
+    // Update in database
+    await centralPrisma.tenant.update({
+      where: { id: domainRecord.tenant.id },
+      data: {
+        integrationsConfig: encryptedConfig as any,
+      },
+    });
+
+    return {
+      success: true,
+      message: 'Integrations configuration updated successfully',
+    };
+  }
+
+  /**
+   * Unmask config by replacing masked values with actual values from existing config
+   */
+  private unmaskConfig(newConfig: any, existingConfig: any): any {
+    const result = { ...newConfig };
+
+    // Unmask Twilio credentials
+    if (result.twilio && existingConfig.twilio) {
+      if (result.twilio.authToken === '••••••••' && existingConfig.twilio.authToken) {
+        result.twilio.authToken = existingConfig.twilio.authToken;
+      }
+      if (result.twilio.apiSecret === '••••••••' && existingConfig.twilio.apiSecret) {
+        result.twilio.apiSecret = existingConfig.twilio.apiSecret;
+      }
+    }
+
+    // Unmask OpenAI credentials
+    if (result.openai && existingConfig.openai) {
+      if (result.openai.apiKey === '••••••••' && existingConfig.openai.apiKey) {
+        result.openai.apiKey = existingConfig.openai.apiKey;
+      }
+    }
+
+    return result;
+  }
+
+  /**
+   * Mask sensitive fields for API responses
+   */
+  private maskSensitiveFields(config: any): any {
+    if (!config) return null;
+
+    const masked = { ...config };
+
+    // Mask Twilio credentials
+    if (masked.twilio) {
+      masked.twilio = {
+        ...masked.twilio,
+        authToken: masked.twilio.authToken ? '••••••••' : '',
+        apiSecret: masked.twilio.apiSecret ? '••••••••' : '',
+      };
+    }
+
+    // Mask OpenAI credentials
+    if (masked.openai) {
+      masked.openai = {
+        ...masked.openai,
+        apiKey: masked.openai.apiKey ? '••••••••' : '',
+      };
+    }
+
+    return masked;
+  }
+}

backend/src/tenant/tenant.module.ts

@@ -4,11 +4,12 @@ import { TenantDatabaseService } from './tenant-database.service';
 import { TenantProvisioningService } from './tenant-provisioning.service';
 import { TenantProvisioningController } from './tenant-provisioning.controller';
 import { CentralAdminController } from './central-admin.controller';
+import { TenantController } from './tenant.controller';
 import { PrismaModule } from '../prisma/prisma.module';
 
 @Module({
   imports: [PrismaModule],
-  controllers: [TenantProvisioningController, CentralAdminController],
+  controllers: [TenantProvisioningController, CentralAdminController, TenantController],
   providers: [
     TenantDatabaseService,
     TenantProvisioningService,

backend/src/voice/audio-converter.service.ts

@@ -0,0 +1,214 @@
+import { Injectable, Logger } from '@nestjs/common';
+
+/**
+ * Audio format converter for Twilio <-> OpenAI audio streaming
+ * 
+ * Twilio Media Streams format:
+ * - Codec: μ-law (G.711)
+ * - Sample rate: 8kHz
+ * - Encoding: base64
+ * - Chunk size: 20ms (160 bytes)
+ * 
+ * OpenAI Realtime API format:
+ * - Codec: PCM16
+ * - Sample rate: 24kHz
+ * - Encoding: base64
+ * - Mono channel
+ */
+@Injectable()
+export class AudioConverterService {
+  private readonly logger = new Logger(AudioConverterService.name);
+
+  // μ-law decode lookup table
+  private readonly MULAW_DECODE_TABLE = this.buildMuLawDecodeTable();
+
+  // μ-law encode lookup table
+  private readonly MULAW_ENCODE_TABLE = this.buildMuLawEncodeTable();
+
+  /**
+   * Build μ-law to linear PCM16 decode table
+   */
+  private buildMuLawDecodeTable(): Int16Array {
+    const table = new Int16Array(256);
+    for (let i = 0; i < 256; i++) {
+      const mulaw = ~i;
+      const exponent = (mulaw >> 4) & 0x07;
+      const mantissa = mulaw & 0x0f;
+      let sample = (mantissa << 3) + 0x84;
+      sample <<= exponent;
+      sample -= 0x84;
+      if ((mulaw & 0x80) === 0) {
+        sample = -sample;
+      }
+      table[i] = sample;
+    }
+    return table;
+  }
+
+  /**
+   * Build linear PCM16 to μ-law encode table
+   */
+  private buildMuLawEncodeTable(): Uint8Array {
+    const table = new Uint8Array(65536);
+    for (let i = 0; i < 65536; i++) {
+      const sample = (i - 32768);
+      const sign = sample < 0 ? 0x80 : 0x00;
+      const magnitude = Math.abs(sample);
+      
+      // Add bias
+      let biased = magnitude + 0x84;
+      
+      // Find exponent
+      let exponent = 7;
+      for (let exp = 0; exp < 8; exp++) {
+        if (biased <= (0xff << exp)) {
+          exponent = exp;
+          break;
+        }
+      }
+      
+      // Extract mantissa
+      const mantissa = (biased >> (exponent + 3)) & 0x0f;
+      
+      // Combine sign, exponent, mantissa
+      const mulaw = ~(sign | (exponent << 4) | mantissa);
+      table[i] = mulaw & 0xff;
+    }
+    return table;
+  }
+
+  /**
+   * Decode μ-law audio to linear PCM16
+   * @param mulawData - Buffer containing μ-law encoded audio
+   * @returns Buffer containing PCM16 audio (16-bit little-endian)
+   */
+  decodeMuLaw(mulawData: Buffer): Buffer {
+    const pcm16 = Buffer.allocUnsafe(mulawData.length * 2);
+    
+    for (let i = 0; i < mulawData.length; i++) {
+      const sample = this.MULAW_DECODE_TABLE[mulawData[i]];
+      pcm16.writeInt16LE(sample, i * 2);
+    }
+    
+    return pcm16;
+  }
+
+  /**
+   * Encode linear PCM16 to μ-law
+   * @param pcm16Data - Buffer containing PCM16 audio (16-bit little-endian)
+   * @returns Buffer containing μ-law encoded audio
+   */
+  encodeMuLaw(pcm16Data: Buffer): Buffer {
+    const mulaw = Buffer.allocUnsafe(pcm16Data.length / 2);
+    
+    for (let i = 0; i < pcm16Data.length; i += 2) {
+      const sample = pcm16Data.readInt16LE(i);
+      const index = (sample + 32768) & 0xffff;
+      mulaw[i / 2] = this.MULAW_ENCODE_TABLE[index];
+    }
+    
+    return mulaw;
+  }
+
+  /**
+   * Resample audio from 8kHz to 24kHz (linear interpolation)
+   * @param pcm16Data - Buffer containing 8kHz PCM16 audio
+   * @returns Buffer containing 24kHz PCM16 audio
+   */
+  resample8kTo24k(pcm16Data: Buffer): Buffer {
+    const inputSamples = pcm16Data.length / 2;
+    const outputSamples = Math.floor(inputSamples * 3); // 8k * 3 = 24k
+    const output = Buffer.allocUnsafe(outputSamples * 2);
+    
+    for (let i = 0; i < outputSamples; i++) {
+      const srcIndex = i / 3;
+      const srcIndexFloor = Math.floor(srcIndex);
+      const srcIndexCeil = Math.min(srcIndexFloor + 1, inputSamples - 1);
+      const fraction = srcIndex - srcIndexFloor;
+      
+      const sample1 = pcm16Data.readInt16LE(srcIndexFloor * 2);
+      const sample2 = pcm16Data.readInt16LE(srcIndexCeil * 2);
+      
+      // Linear interpolation
+      const interpolated = Math.round(sample1 + (sample2 - sample1) * fraction);
+      output.writeInt16LE(interpolated, i * 2);
+    }
+    
+    return output;
+  }
+
+  /**
+   * Resample audio from 24kHz to 8kHz (decimation with averaging)
+   * @param pcm16Data - Buffer containing 24kHz PCM16 audio
+   * @returns Buffer containing 8kHz PCM16 audio
+   */
+  resample24kTo8k(pcm16Data: Buffer): Buffer {
+    const inputSamples = pcm16Data.length / 2;
+    const outputSamples = Math.floor(inputSamples / 3); // 24k / 3 = 8k
+    const output = Buffer.allocUnsafe(outputSamples * 2);
+    
+    for (let i = 0; i < outputSamples; i++) {
+      // Average 3 samples for anti-aliasing
+      const idx1 = Math.min(i * 3, inputSamples - 1);
+      const idx2 = Math.min(i * 3 + 1, inputSamples - 1);
+      const idx3 = Math.min(i * 3 + 2, inputSamples - 1);
+      
+      const sample1 = pcm16Data.readInt16LE(idx1 * 2);
+      const sample2 = pcm16Data.readInt16LE(idx2 * 2);
+      const sample3 = pcm16Data.readInt16LE(idx3 * 2);
+      
+      const averaged = Math.round((sample1 + sample2 + sample3) / 3);
+      output.writeInt16LE(averaged, i * 2);
+    }
+    
+    return output;
+  }
+
+  /**
+   * Convert Twilio μ-law 8kHz to OpenAI PCM16 24kHz
+   * @param twilioBase64 - Base64-encoded μ-law audio from Twilio
+   * @returns Base64-encoded PCM16 24kHz audio for OpenAI
+   */
+  twilioToOpenAI(twilioBase64: string): string {
+    try {
+      // Decode base64
+      const mulawBuffer = Buffer.from(twilioBase64, 'base64');
+      
+      // μ-law -> PCM16
+      const pcm16_8k = this.decodeMuLaw(mulawBuffer);
+      
+      // 8kHz -> 24kHz
+      const pcm16_24k = this.resample8kTo24k(pcm16_8k);
+      
+      // Encode to base64
+      return pcm16_24k.toString('base64');
+    } catch (error) {
+      this.logger.error('Error converting Twilio to OpenAI audio', error);
+      throw error;
+    }
+  }
+
+  /**
+   * Convert OpenAI PCM16 24kHz to Twilio μ-law 8kHz
+   * @param openaiBase64 - Base64-encoded PCM16 24kHz audio from OpenAI
+   * @returns Base64-encoded μ-law 8kHz audio for Twilio
+   */
+  openAIToTwilio(openaiBase64: string): string {
+    try {
+      // Decode base64
+      const pcm16_24k = Buffer.from(openaiBase64, 'base64');
+      
+      // 24kHz -> 8kHz
+      const pcm16_8k = this.resample24kTo8k(pcm16_24k);
+      
+      // PCM16 -> μ-law
+      const mulawBuffer = this.encodeMuLaw(pcm16_8k);
+      
+      // Encode to base64
+      return mulawBuffer.toString('base64');
+    } catch (error) {
+      this.logger.error('Error converting OpenAI to Twilio audio', error);
+      throw error;
+    }
+  }
+}

backend/src/voice/dto/call-event.dto.ts

@@ -0,0 +1,25 @@
+export interface CallEventDto {
+  callSid: string;
+  direction: 'inbound' | 'outbound';
+  fromNumber: string;
+  toNumber: string;
+  status: string;
+}
+
+export interface DtmfEventDto {
+  callSid: string;
+  digit: string;
+}
+
+export interface TranscriptEventDto {
+  callSid: string;
+  transcript: string;
+  isFinal: boolean;
+}
+
+export interface AiSuggestionDto {
+  callSid: string;
+  suggestion: string;
+  type: 'response' | 'action' | 'insight';
+  data?: any;
+}

backend/src/voice/dto/initiate-call.dto.ts

@@ -0,0 +1,10 @@
+import { IsString, IsNotEmpty, Matches } from 'class-validator';
+
+export class InitiateCallDto {
+  @IsString()
+  @IsNotEmpty()
+  @Matches(/^\+?[1-9]\d{1,14}$/, {
+    message: 'Invalid phone number format (use E.164 format)',
+  })
+  toNumber: string;
+}

backend/src/voice/interfaces/integration-config.interface.ts

@@ -0,0 +1,20 @@
+export interface TwilioConfig {
+  accountSid: string;
+  authToken: string;
+  phoneNumber: string;
+  apiKey?: string;  // API Key SID for generating access tokens
+  apiSecret?: string;  // API Key Secret
+  twimlAppSid?: string;  // TwiML App SID for Voice SDK
+}
+
+export interface OpenAIConfig {
+  apiKey: string;
+  assistantId?: string;
+  model?: string;
+  voice?: string;
+}
+
+export interface IntegrationsConfig {
+  twilio?: TwilioConfig;
+  openai?: OpenAIConfig;
+}

backend/src/voice/voice.controller.ts

@@ -0,0 +1,495 @@
+import {
+  Controller,
+  Post,
+  Get,
+  Body,
+  Req,
+  Res,
+  UseGuards,
+  Logger,
+  Query,
+} from '@nestjs/common';
+import { FastifyRequest, FastifyReply } from 'fastify';
+import { JwtAuthGuard } from '../auth/jwt-auth.guard';
+import { VoiceService } from './voice.service';
+import { VoiceGateway } from './voice.gateway';
+import { AudioConverterService } from './audio-converter.service';
+import { InitiateCallDto } from './dto/initiate-call.dto';
+import { TenantId } from '../tenant/tenant.decorator';
+
+@Controller('voice')
+export class VoiceController {
+  private readonly logger = new Logger(VoiceController.name);
+
+  // Track active Media Streams connections: streamSid -> WebSocket
+  private mediaStreams: Map<string, any> = new Map();
+
+  constructor(
+    private readonly voiceService: VoiceService,
+    private readonly voiceGateway: VoiceGateway,
+    private readonly audioConverter: AudioConverterService,
+  ) {}
+
+  /**
+   * Initiate outbound call via REST
+   */
+  @Post('call')
+  @UseGuards(JwtAuthGuard)
+  async initiateCall(
+    @Body() body: InitiateCallDto,
+    @Req() req: any,
+    @TenantId() tenantId: string,
+  ) {
+    const userId = req.user?.userId || req.user?.sub;
+
+    const result = await this.voiceService.initiateCall({
+      tenantId,
+      userId,
+      toNumber: body.toNumber,
+    });
+
+    return {
+      success: true,
+      data: result,
+    };
+  }
+
+  /**
+   * Generate Twilio access token for browser client
+   */
+  @Get('token')
+  @UseGuards(JwtAuthGuard)
+  async getAccessToken(
+    @Req() req: any,
+    @TenantId() tenantId: string,
+  ) {
+    const userId = req.user?.userId || req.user?.sub;
+    
+    const token = await this.voiceService.generateAccessToken(tenantId, userId);
+
+    return {
+      success: true,
+      data: { token },
+    };
+  }
+
+  /**
+   * Get call history
+   */
+  @Get('calls')
+  @UseGuards(JwtAuthGuard)
+  async getCallHistory(
+    @Req() req: any,
+    @TenantId() tenantId: string,
+    @Query('limit') limit?: string,
+  ) {
+    const userId = req.user?.userId || req.user?.sub;
+    const calls = await this.voiceService.getCallHistory(
+      tenantId,
+      userId,
+      limit ? parseInt(limit) : 50,
+    );
+
+    return {
+      success: true,
+      data: calls,
+    };
+  }
+
+  /**
+   * TwiML for outbound calls from browser (Twilio Device)
+   */
+  @Post('twiml/outbound')
+  async outboundTwiml(@Req() req: FastifyRequest, @Res() res: FastifyReply) {
+    const body = req.body as any;
+    const to = body.To;
+    const from = body.From;
+    const callSid = body.CallSid;
+
+    this.logger.log(`=== TwiML OUTBOUND REQUEST RECEIVED ===`);
+    this.logger.log(`CallSid: ${callSid}, Body From: ${from}, Body To: ${to}`);
+    this.logger.log(`Full body: ${JSON.stringify(body)}`);
+
+    try {
+      // Extract tenant domain from Host header
+      const host = req.headers.host || '';
+      const tenantDomain = host.split('.')[0]; // e.g., "tenant1" from "tenant1.routebox.co"
+      
+      this.logger.log(`Extracted tenant domain: ${tenantDomain}`);
+
+      // Look up tenant's Twilio phone number from config
+      let callerId = to; // Fallback (will cause error if not found)
+      try {
+        // Get Twilio config to find the phone number
+        const { config } = await this.voiceService['getTwilioClient'](tenantDomain);
+        callerId = config.phoneNumber;
+        this.logger.log(`Retrieved Twilio phone number for tenant: ${callerId}`);
+      } catch (error: any) {
+        this.logger.error(`Failed to get Twilio config: ${error.message}`);
+      }
+
+      const dialNumber = to;
+
+      this.logger.log(`Using callerId: ${callerId}, dialNumber: ${dialNumber}`);
+
+      // Return TwiML to DIAL the phone number with proper callerId
+      const twiml = `<?xml version="1.0" encoding="UTF-8"?>
+<Response>
+  <Dial callerId="${callerId}">
+    <Number>${dialNumber}</Number>
+  </Dial>
+</Response>`;
+
+      this.logger.log(`Returning TwiML with Dial verb - callerId: ${callerId}, to: ${dialNumber}`);
+      res.type('text/xml').send(twiml);
+    } catch (error: any) {
+      this.logger.error(`=== ERROR GENERATING TWIML ===`);
+      this.logger.error(`Error: ${error.message}`);
+      this.logger.error(`Stack: ${error.stack}`);
+      const errorTwiml = `<?xml version="1.0" encoding="UTF-8"?>
+<Response>
+  <Say>An error occurred while processing your call.</Say>
+</Response>`;
+      res.type('text/xml').send(errorTwiml);
+    }
+  }
+
+  /**
+   * TwiML for inbound calls
+   */
+  @Post('twiml/inbound')
+  async inboundTwiml(@Req() req: FastifyRequest, @Res() res: FastifyReply) {
+    const body = req.body as any;
+    const callSid = body.CallSid;
+    const fromNumber = body.From;
+    const toNumber = body.To;
+
+    this.logger.log(`\n\n╔════════════════════════════════════════╗`);
+    this.logger.log(`║ === INBOUND CALL RECEIVED ===`);
+    this.logger.log(`╚════════════════════════════════════════╝`);
+    this.logger.log(`CallSid: ${callSid}`);
+    this.logger.log(`From: ${fromNumber}`);
+    this.logger.log(`To: ${toNumber}`);
+    this.logger.log(`Full body: ${JSON.stringify(body)}`);
+
+    try {
+      // Extract tenant domain from Host header
+      const host = req.headers.host || '';
+      const tenantDomain = host.split('.')[0]; // e.g., "tenant1" from "tenant1.routebox.co"
+      
+      this.logger.log(`Extracted tenant domain: ${tenantDomain}`);
+
+      // Get all connected users for this tenant
+      const connectedUsers = this.voiceGateway.getConnectedUsers(tenantDomain);
+      
+      this.logger.log(`Connected users for tenant ${tenantDomain}: ${connectedUsers.length}`);
+      if (connectedUsers.length > 0) {
+        this.logger.log(`Connected user IDs: ${connectedUsers.join(', ')}`);
+      }
+      
+      if (connectedUsers.length === 0) {
+        // No users online - send to voicemail or play message
+        const twiml = `<?xml version="1.0" encoding="UTF-8"?>
+<Response>
+  <Say>Sorry, no agents are currently available. Please try again later.</Say>
+  <Hangup/>
+</Response>`;
+        this.logger.log(`❌ No users online - returning unavailable message`);
+        return res.type('text/xml').send(twiml);
+      }
+
+      // Build TwiML to dial all connected clients with Media Streams for AI
+      const clientElements = connectedUsers.map(userId => `    <Client>${userId}</Client>`).join('\n');
+      
+      // Use wss:// for secure WebSocket (Traefik handles HTTPS)
+      const streamUrl = `wss://${host}/api/voice/media-stream`;
+      
+      this.logger.log(`Stream URL: ${streamUrl}`);
+      this.logger.log(`Dialing ${connectedUsers.length} client(s)...`);
+      this.logger.log(`Client IDs to dial: ${connectedUsers.join(', ')}`);
+      
+      // Verify we have client IDs in proper format
+      if (connectedUsers.length > 0) {
+        this.logger.log(`First Client ID format check: "${connectedUsers[0]}" (length: ${connectedUsers[0].length})`);
+      }
+
+      // Notify connected users about incoming call via Socket.IO
+      connectedUsers.forEach(userId => {
+        this.voiceGateway.notifyIncomingCall(userId, {
+          callSid,
+          fromNumber,
+          toNumber,
+          tenantDomain,
+        });
+      });
+
+      const twiml = `<?xml version="1.0" encoding="UTF-8"?>
+<Response>
+  <Start>
+    <Stream url="${streamUrl}">
+      <Parameter name="tenantId" value="${tenantDomain}"/>
+      <Parameter name="userId" value="${connectedUsers[0]}"/>
+    </Stream>
+  </Start>
+  <Dial timeout="30">
+${clientElements}
+  </Dial>
+</Response>`;
+
+      this.logger.log(`✓ Returning inbound TwiML with Media Streams - dialing ${connectedUsers.length} client(s)`);
+      this.logger.log(`Generated TwiML:\n${twiml}\n`);
+      res.type('text/xml').send(twiml);
+    } catch (error: any) {
+      this.logger.error(`Error generating inbound TwiML: ${error.message}`);
+      const errorTwiml = `<?xml version="1.0" encoding="UTF-8"?>
+<Response>
+  <Say>Sorry, we are unable to connect your call at this time.</Say>
+  <Hangup/>
+</Response>`;
+      res.type('text/xml').send(errorTwiml);
+    }
+  }
+
+  /**
+   * Twilio status webhook
+   */
+  @Post('webhook/status')
+  async statusWebhook(@Req() req: FastifyRequest) {
+    const body = req.body as any;
+    const callSid = body.CallSid;
+    const status = body.CallStatus;
+    const duration = body.CallDuration ? parseInt(body.CallDuration) : undefined;
+
+    this.logger.log(`Call status webhook - CallSid: ${callSid}, Status: ${status}, Duration: ${duration}`);
+    this.logger.log(`Full status webhook body:`, JSON.stringify(body));
+
+    return { success: true };
+  }
+
+  /**
+   * Twilio recording webhook
+   */
+  @Post('webhook/recording')
+  async recordingWebhook(@Req() req: FastifyRequest) {
+    const body = req.body as any;
+    const callSid = body.CallSid;
+    const recordingSid = body.RecordingSid;
+    const recordingStatus = body.RecordingStatus;
+
+    this.logger.log(`Recording webhook - CallSid: ${callSid}, RecordingSid: ${recordingSid}, Status: ${recordingStatus}`);
+
+    return { success: true };
+  }
+
+  /**
+   * Twilio Media Streams WebSocket endpoint
+   * Receives real-time audio from Twilio and forwards to OpenAI Realtime API
+   * 
+   * This handles the HTTP GET request and upgrades it to WebSocket manually.
+   */
+  @Get('media-stream')
+  mediaStream(@Req() req: FastifyRequest) {
+    // For WebSocket upgrade, we need to access the raw socket
+    let socket: any;
+    
+    try {
+      this.logger.log(`=== MEDIA STREAM REQUEST ===`);
+      this.logger.log(`URL: ${req.url}`);
+      this.logger.log(`Headers keys: ${Object.keys(req.headers).join(', ')}`);
+      this.logger.log(`Headers: ${JSON.stringify(req.headers)}`);
+      
+      // Check if this is a WebSocket upgrade request
+      const hasWebSocketKey = 'sec-websocket-key' in req.headers;
+      const hasWebSocketVersion = 'sec-websocket-version' in req.headers;
+      
+      this.logger.log(`hasWebSocketKey: ${hasWebSocketKey}`);
+      this.logger.log(`hasWebSocketVersion: ${hasWebSocketVersion}`);
+      
+      if (!hasWebSocketKey || !hasWebSocketVersion) {
+        this.logger.log('Not a WebSocket upgrade request - returning');
+        return;
+      }
+
+      this.logger.log('✓ WebSocket upgrade detected');
+      
+      // Get the socket - try different ways
+      socket = (req.raw as any).socket;
+      this.logger.log(`Socket obtained: ${!!socket}`);
+      
+      if (!socket) {
+        this.logger.error('Failed to get socket from req.raw');
+        return;
+      }
+      
+      const rawRequest = req.raw;
+      const head = Buffer.alloc(0);
+      
+      this.logger.log('Creating WebSocketServer...');
+      const WebSocketServer = require('ws').Server;
+      const wss = new WebSocketServer({ noServer: true });
+      
+      this.logger.log('Calling handleUpgrade...');
+      
+      // handleUpgrade will send the 101 response and take over the socket
+      wss.handleUpgrade(rawRequest, socket, head, (ws: any) => {
+        this.logger.log('=== TWILIO MEDIA STREAM WEBSOCKET UPGRADED SUCCESSFULLY ===');
+        this.handleMediaStreamSocket(ws);
+      });
+      
+      this.logger.log('handleUpgrade completed');
+    } catch (error: any) {
+      this.logger.error(`=== FAILED TO UPGRADE TO WEBSOCKET ===`);
+      this.logger.error(`Error message: ${error.message}`);
+      this.logger.error(`Error stack: ${error.stack}`);
+    }
+  }
+
+  /**
+   * Handle incoming Media Stream WebSocket messages
+   */
+  private handleMediaStreamSocket(ws: any) {
+    let streamSid: string | null = null;
+    let callSid: string | null = null;
+    let tenantDomain: string | null = null;
+    let mediaPacketCount = 0;
+
+    // WebSocket message handler
+    ws.on('message', async (message: Buffer) => {
+      try {
+        const msg = JSON.parse(message.toString());
+
+        switch (msg.event) {
+          case 'connected':
+            this.logger.log('=== MEDIA STREAM EVENT: CONNECTED ===');
+            this.logger.log(`Protocol: ${msg.protocol}`);
+            this.logger.log(`Version: ${msg.version}`);
+            break;
+
+          case 'start':
+            streamSid = msg.streamSid;
+            callSid = msg.start.callSid;
+
+            // Extract tenant from customParameters if available
+            tenantDomain = msg.start.customParameters?.tenantId || 'tenant1';
+
+            this.logger.log(`=== MEDIA STREAM EVENT: START ===`);
+            this.logger.log(`StreamSid: ${streamSid}`);
+            this.logger.log(`CallSid: ${callSid}`);
+            this.logger.log(`Tenant: ${tenantDomain}`);
+            this.logger.log(`AccountSid: ${msg.start.accountSid}`);
+            this.logger.log(`MediaFormat: ${JSON.stringify(msg.start.mediaFormat)}`);
+            this.logger.log(`Custom Parameters: ${JSON.stringify(msg.start.customParameters)}`);
+
+            // Store WebSocket connection
+            this.mediaStreams.set(streamSid, ws);
+            this.logger.log(`Stored WebSocket for streamSid: ${streamSid}. Total active streams: ${this.mediaStreams.size}`);
+
+            // Initialize OpenAI Realtime connection for this call
+            this.logger.log(`Initializing OpenAI Realtime for call ${callSid}...`);
+            await this.voiceService.initializeOpenAIRealtime({
+              callSid,
+              tenantId: tenantDomain,
+              userId: msg.start.customParameters?.userId || 'system',
+            });
+
+            this.logger.log(`✓ OpenAI Realtime initialized for call ${callSid}`);
+            break;
+
+          case 'media':
+            mediaPacketCount++;
+            if (mediaPacketCount % 50 === 0) {
+              // Log every 50th packet to avoid spam
+              this.logger.log(`Received media packet #${mediaPacketCount} for StreamSid: ${streamSid}, CallSid: ${callSid}, PayloadSize: ${msg.media.payload?.length || 0} bytes`);
+            }
+
+            if (!callSid || !tenantDomain) {
+              this.logger.warn('Received media before start event');
+              break;
+            }
+
+            // msg.media.payload is base64-encoded μ-law audio from Twilio
+            const twilioAudio = msg.media.payload;
+
+            // Convert Twilio audio (μ-law 8kHz) to OpenAI format (PCM16 24kHz)
+            const openaiAudio = this.audioConverter.twilioToOpenAI(twilioAudio);
+
+            // Send audio to OpenAI Realtime API
+            await this.voiceService.sendAudioToOpenAI(callSid, openaiAudio);
+            break;
+
+          case 'stop':
+            this.logger.log(`=== MEDIA STREAM EVENT: STOP ===`);
+            this.logger.log(`StreamSid: ${streamSid}`);
+            this.logger.log(`Total media packets received: ${mediaPacketCount}`);
+
+            if (streamSid) {
+              this.mediaStreams.delete(streamSid);
+              this.logger.log(`Removed WebSocket for streamSid: ${streamSid}. Remaining active streams: ${this.mediaStreams.size}`);
+            }
+
+            // Clean up OpenAI connection
+            if (callSid) {
+              this.logger.log(`Cleaning up OpenAI connection for call ${callSid}...`);
+              await this.voiceService.cleanupOpenAIConnection(callSid);
+              this.logger.log(`✓ OpenAI connection cleaned up for call ${callSid}`);
+            }
+            break;
+
+          default:
+            this.logger.debug(`Unknown media stream event: ${msg.event}`);
+        }
+      } catch (error: any) {
+        this.logger.error(`Error processing media stream message: ${error.message}`);
+        this.logger.error(`Stack: ${error.stack}`);
+      }
+    });
+
+    ws.on('close', () => {
+      this.logger.log(`=== MEDIA STREAM WEBSOCKET CLOSED ===`);
+      this.logger.log(`StreamSid: ${streamSid}`);
+      this.logger.log(`Total media packets in this stream: ${mediaPacketCount}`);
+      if (streamSid) {
+        this.mediaStreams.delete(streamSid);
+        this.logger.log(`Cleaned up streamSid on close. Remaining active streams: ${this.mediaStreams.size}`);
+      }
+    });
+
+    ws.on('error', (error: Error) => {
+      this.logger.error(`=== MEDIA STREAM WEBSOCKET ERROR ===`);
+      this.logger.error(`StreamSid: ${streamSid}`);
+      this.logger.error(`Error message: ${error.message}`);
+      this.logger.error(`Error stack: ${error.stack}`);
+    });
+  }
+
+  /**
+   * Send audio from OpenAI back to Twilio Media Stream
+   */
+  async sendAudioToTwilio(streamSid: string, openaiAudioBase64: string) {
+    const ws = this.mediaStreams.get(streamSid);
+    
+    if (!ws) {
+      this.logger.warn(`No Media Stream found for streamSid: ${streamSid}`);
+      return;
+    }
+
+    try {
+      // Convert OpenAI audio (PCM16 24kHz) to Twilio format (μ-law 8kHz)
+      const twilioAudio = this.audioConverter.openAIToTwilio(openaiAudioBase64);
+      
+      // Send to Twilio Media Stream
+      const message = {
+        event: 'media',
+        streamSid,
+        media: {
+          payload: twilioAudio,
+        },
+      };
+      
+      ws.send(JSON.stringify(message));
+    } catch (error: any) {
+      this.logger.error(`Error sending audio to Twilio: ${error.message}`);
+    }
+  }
+}
+

backend/src/voice/voice.gateway.ts

@@ -0,0 +1,319 @@
+import {
+  WebSocketGateway,
+  WebSocketServer,
+  SubscribeMessage,
+  OnGatewayConnection,
+  OnGatewayDisconnect,
+  ConnectedSocket,
+  MessageBody,
+} from '@nestjs/websockets';
+import { Server, Socket } from 'socket.io';
+import { Logger, UseGuards } from '@nestjs/common';
+import { JwtService } from '@nestjs/jwt';
+import { VoiceService } from './voice.service';
+import { TenantDatabaseService } from '../tenant/tenant-database.service';
+
+interface AuthenticatedSocket extends Socket {
+  tenantId?: string;
+  userId?: string;
+  tenantSlug?: string;
+}
+
+@WebSocketGateway({
+  namespace: 'voice',
+  cors: {
+    origin: true,
+    credentials: true,
+  },
+})
+export class VoiceGateway
+  implements OnGatewayConnection, OnGatewayDisconnect
+{
+  @WebSocketServer()
+  server: Server;
+
+  private readonly logger = new Logger(VoiceGateway.name);
+  private connectedUsers: Map<string, AuthenticatedSocket> = new Map();
+  private activeCallsByUser: Map<string, string> = new Map(); // userId -> callSid
+
+  constructor(
+    private readonly jwtService: JwtService,
+    private readonly voiceService: VoiceService,
+    private readonly tenantDbService: TenantDatabaseService,
+  ) {
+    // Set gateway reference in service to avoid circular dependency
+    this.voiceService.setGateway(this);
+  }
+
+  async handleConnection(client: AuthenticatedSocket) {
+    try {
+      // Extract token from handshake auth
+      const token =
+        client.handshake.auth.token || client.handshake.headers.authorization?.split(' ')[1];
+
+      if (!token) {
+        this.logger.warn('❌ Client connection rejected: No token provided');
+        client.disconnect();
+        return;
+      }
+
+      // Verify JWT token
+      const payload = await this.jwtService.verifyAsync(token);
+      
+      // Extract domain from origin header (e.g., http://tenant1.routebox.co:3001)
+      // The domains table stores just the subdomain part (e.g., "tenant1")
+      const origin = client.handshake.headers.origin || client.handshake.headers.referer;
+      let domain = 'localhost';
+      
+      if (origin) {
+        try {
+          const url = new URL(origin);
+          const hostname = url.hostname; // e.g., tenant1.routebox.co or localhost
+          
+          // Extract first part of subdomain as domain
+          // tenant1.routebox.co -> tenant1
+          // localhost -> localhost
+          domain = hostname.split('.')[0];
+        } catch (error) {
+          this.logger.warn(`Failed to parse origin: ${origin}`);
+        }
+      }
+      
+      client.tenantId = domain; // Store the subdomain as tenantId
+      client.userId = payload.sub;
+      client.tenantSlug = domain; // Same as subdomain
+
+      this.connectedUsers.set(client.userId, client);
+      this.logger.log(
+        `✓ Client connected: ${client.id} (User: ${client.userId}, Domain: ${domain})`,
+      );
+      this.logger.log(`Total connected users in ${domain}: ${this.getConnectedUsers(domain).length}`);
+
+      // Send current call state if any active call
+      const activeCallSid = this.activeCallsByUser.get(client.userId);
+      if (activeCallSid) {
+        const callState = await this.voiceService.getCallState(
+          activeCallSid,
+          client.tenantId,
+        );
+        client.emit('call:state', callState);
+      }
+    } catch (error) {
+      this.logger.error('❌ Authentication failed', error);
+      client.disconnect();
+    }
+  }
+
+  handleDisconnect(client: AuthenticatedSocket) {
+    if (client.userId) {
+      this.connectedUsers.delete(client.userId);
+      this.logger.log(`✓ Client disconnected: ${client.id} (User: ${client.userId})`);
+      this.logger.log(`Remaining connected users: ${this.connectedUsers.size}`);
+    }
+  }
+
+  /**
+   * Initiate outbound call
+   */
+  @SubscribeMessage('call:initiate')
+  async handleInitiateCall(
+    @ConnectedSocket() client: AuthenticatedSocket,
+    @MessageBody() data: { toNumber: string },
+  ) {
+    try {
+      this.logger.log(`Initiating call from user ${client.userId} to ${data.toNumber}`);
+
+      const result = await this.voiceService.initiateCall({
+        tenantId: client.tenantId,
+        userId: client.userId,
+        toNumber: data.toNumber,
+      });
+
+      this.activeCallsByUser.set(client.userId, result.callSid);
+
+      client.emit('call:initiated', {
+        callSid: result.callSid,
+        toNumber: data.toNumber,
+        status: 'queued',
+      });
+
+      return { success: true, callSid: result.callSid };
+    } catch (error) {
+      this.logger.error('Failed to initiate call', error);
+      client.emit('call:error', {
+        message: error.message || 'Failed to initiate call',
+      });
+      return { success: false, error: error.message };
+    }
+  }
+
+  /**
+   * Accept incoming call
+   */
+  @SubscribeMessage('call:accept')
+  async handleAcceptCall(
+    @ConnectedSocket() client: AuthenticatedSocket,
+    @MessageBody() data: { callSid: string },
+  ) {
+    try {
+      this.logger.log(`User ${client.userId} accepting call ${data.callSid}`);
+
+      await this.voiceService.acceptCall({
+        callSid: data.callSid,
+        tenantId: client.tenantId,
+        userId: client.userId,
+      });
+
+      this.activeCallsByUser.set(client.userId, data.callSid);
+
+      client.emit('call:accepted', { callSid: data.callSid });
+
+      return { success: true };
+    } catch (error) {
+      this.logger.error('Failed to accept call', error);
+      return { success: false, error: error.message };
+    }
+  }
+
+  /**
+   * Reject incoming call
+   */
+  @SubscribeMessage('call:reject')
+  async handleRejectCall(
+    @ConnectedSocket() client: AuthenticatedSocket,
+    @MessageBody() data: { callSid: string },
+  ) {
+    try {
+      this.logger.log(`User ${client.userId} rejecting call ${data.callSid}`);
+
+      await this.voiceService.rejectCall(data.callSid, client.tenantId);
+
+      client.emit('call:rejected', { callSid: data.callSid });
+
+      return { success: true };
+    } catch (error) {
+      this.logger.error('Failed to reject call', error);
+      return { success: false, error: error.message };
+    }
+  }
+
+  /**
+   * End active call
+   */
+  @SubscribeMessage('call:end')
+  async handleEndCall(
+    @ConnectedSocket() client: AuthenticatedSocket,
+    @MessageBody() data: { callSid: string },
+  ) {
+    try {
+      this.logger.log(`User ${client.userId} ending call ${data.callSid}`);
+
+      await this.voiceService.endCall(data.callSid, client.tenantId);
+
+      this.activeCallsByUser.delete(client.userId);
+
+      client.emit('call:ended', { callSid: data.callSid });
+
+      return { success: true };
+    } catch (error) {
+      this.logger.error('Failed to end call', error);
+      return { success: false, error: error.message };
+    }
+  }
+
+  /**
+   * Send DTMF tones
+   */
+  @SubscribeMessage('call:dtmf')
+  async handleDtmf(
+    @ConnectedSocket() client: AuthenticatedSocket,
+    @MessageBody() data: { callSid: string; digit: string },
+  ) {
+    try {
+      await this.voiceService.sendDtmf(
+        data.callSid,
+        data.digit,
+        client.tenantId,
+      );
+
+      return { success: true };
+    } catch (error) {
+      this.logger.error('Failed to send DTMF', error);
+      return { success: false, error: error.message };
+    }
+  }
+
+  /**
+   * Emit incoming call notification to specific user
+   */
+  async notifyIncomingCall(userId: string, callData: any) {
+    const socket = this.connectedUsers.get(userId);
+    if (socket) {
+      socket.emit('call:incoming', callData);
+      this.logger.log(`Notified user ${userId} of incoming call`);
+    } else {
+      this.logger.warn(`User ${userId} not connected to receive call notification`);
+    }
+  }
+
+  /**
+   * Emit call status update to user
+   */
+  async notifyCallUpdate(userId: string, callData: any) {
+    const socket = this.connectedUsers.get(userId);
+    if (socket) {
+      socket.emit('call:update', callData);
+    }
+  }
+
+  /**
+   * Emit AI transcript to user
+   */
+  async notifyAiTranscript(userId: string, data: { callSid: string; transcript: string; isFinal: boolean }) {
+    const socket = this.connectedUsers.get(userId);
+    if (socket) {
+      socket.emit('ai:transcript', data);
+    }
+  }
+
+  /**
+   * Emit AI suggestion to user
+   */
+  async notifyAiSuggestion(userId: string, data: any) {
+    const socket = this.connectedUsers.get(userId);
+    this.logger.log(`notifyAiSuggestion - userId: ${userId}, socket connected: ${!!socket}, total connected users: ${this.connectedUsers.size}`);
+    if (socket) {
+      this.logger.log(`Emitting ai:suggestion event with data:`, JSON.stringify(data));
+      socket.emit('ai:suggestion', data);
+    } else {
+      this.logger.warn(`No socket connection found for userId: ${userId}`);
+      this.logger.log(`Connected users: ${Array.from(this.connectedUsers.keys()).join(', ')}`);
+    }
+  }
+
+  /**
+   * Emit AI action result to user
+   */
+  async notifyAiAction(userId: string, data: any) {
+    const socket = this.connectedUsers.get(userId);
+    if (socket) {
+      socket.emit('ai:action', data);
+    }
+  }
+
+  /**
+   * Get connected users for a tenant
+   */
+  getConnectedUsers(tenantDomain?: string): string[] {
+    const userIds: string[] = [];
+    
+    for (const [userId, socket] of this.connectedUsers.entries()) {
+      // If tenantDomain specified, filter by tenant
+      if (!tenantDomain || socket.tenantSlug === tenantDomain) {
+        userIds.push(userId);
+      }
+    }
+    
+    return userIds;
+  }
+}

backend/src/voice/voice.module.ts

@@ -0,0 +1,23 @@
+import { Module } from '@nestjs/common';
+import { JwtModule } from '@nestjs/jwt';
+import { VoiceGateway } from './voice.gateway';
+import { VoiceService } from './voice.service';
+import { VoiceController } from './voice.controller';
+import { AudioConverterService } from './audio-converter.service';
+import { TenantModule } from '../tenant/tenant.module';
+import { AuthModule } from '../auth/auth.module';
+
+@Module({
+  imports: [
+    TenantModule,
+    AuthModule,
+    JwtModule.register({
+      secret: process.env.JWT_SECRET || 'your-jwt-secret',
+      signOptions: { expiresIn: process.env.JWT_EXPIRES_IN || '24h' },
+    }),
+  ],
+  providers: [VoiceGateway, VoiceService, AudioConverterService],
+  controllers: [VoiceController],
+  exports: [VoiceService],
+})
+export class VoiceModule {}

backend/src/voice/voice.service.ts

@@ -0,0 +1,826 @@
+import { Injectable, Logger } from '@nestjs/common';
+import { TenantDatabaseService } from '../tenant/tenant-database.service';
+import { getCentralPrisma } from '../prisma/central-prisma.service';
+import { IntegrationsConfig, TwilioConfig, OpenAIConfig } from './interfaces/integration-config.interface';
+import * as Twilio from 'twilio';
+import { WebSocket } from 'ws';
+import { v4 as uuidv4 } from 'uuid';
+
+const AccessToken = Twilio.jwt.AccessToken;
+const VoiceGrant = AccessToken.VoiceGrant;
+
+@Injectable()
+export class VoiceService {
+  private readonly logger = new Logger(VoiceService.name);
+  private twilioClients: Map<string, Twilio.Twilio> = new Map();
+  private openaiConnections: Map<string, WebSocket> = new Map(); // callSid -> WebSocket
+  private callStates: Map<string, any> = new Map(); // callSid -> call state
+  private voiceGateway: any; // Reference to gateway (to avoid circular dependency)
+
+  constructor(
+    private readonly tenantDbService: TenantDatabaseService,
+  ) {}
+
+  /**
+   * Set gateway reference (called by gateway on init)
+   */
+  setGateway(gateway: any) {
+    this.voiceGateway = gateway;
+  }
+
+  /**
+   * Get Twilio client for a tenant
+   */
+  private async getTwilioClient(tenantIdOrDomain: string): Promise<{ client: Twilio.Twilio; config: TwilioConfig; tenantId: string }> {
+    // Check cache first
+    if (this.twilioClients.has(tenantIdOrDomain)) {
+      const centralPrisma = getCentralPrisma();
+      
+      // Look up tenant by domain
+      const domainRecord = await centralPrisma.domain.findUnique({
+        where: { domain: tenantIdOrDomain },
+        include: { tenant: { select: { id: true, integrationsConfig: true } } },
+      });
+
+      const config = this.getIntegrationConfig(domainRecord?.tenant?.integrationsConfig as any);
+      return { 
+        client: this.twilioClients.get(tenantIdOrDomain), 
+        config: config.twilio,
+        tenantId: domainRecord.tenant.id 
+      };
+    }
+
+    // Fetch tenant integrations config
+    const centralPrisma = getCentralPrisma();
+    
+    this.logger.log(`Looking up domain: ${tenantIdOrDomain}`);
+    
+    const domainRecord = await centralPrisma.domain.findUnique({
+      where: { domain: tenantIdOrDomain },
+      include: { tenant: { select: { id: true, integrationsConfig: true } } },
+    });
+
+    this.logger.log(`Domain record found: ${!!domainRecord}, Tenant: ${!!domainRecord?.tenant}, Config: ${!!domainRecord?.tenant?.integrationsConfig}`);
+
+    if (!domainRecord?.tenant) {
+      throw new Error(`Domain ${tenantIdOrDomain} not found`);
+    }
+
+    if (!domainRecord.tenant.integrationsConfig) {
+      throw new Error('Tenant integrations config not found. Please configure Twilio credentials in Settings > Integrations');
+    }
+
+    const config = this.getIntegrationConfig(domainRecord.tenant.integrationsConfig as any);
+
+    this.logger.log(`Config decrypted: ${!!config.twilio}, AccountSid: ${config.twilio?.accountSid?.substring(0, 10)}..., AuthToken: ${config.twilio?.authToken?.substring(0, 10)}..., Phone: ${config.twilio?.phoneNumber}`);
+
+    if (!config.twilio?.accountSid || !config.twilio?.authToken) {
+      throw new Error('Twilio credentials not configured for tenant');
+    }
+
+    const client = Twilio.default(config.twilio.accountSid, config.twilio.authToken);
+    this.twilioClients.set(tenantIdOrDomain, client);
+
+    return { client, config: config.twilio, tenantId: domainRecord.tenant.id };
+  }
+
+  /**
+   * Decrypt and parse integrations config
+   */
+  private getIntegrationConfig(encryptedConfig: any): IntegrationsConfig {
+    if (!encryptedConfig) {
+      return {};
+    }
+
+    // If it's already decrypted (object), return it
+    if (typeof encryptedConfig === 'object' && encryptedConfig.twilio) {
+      return encryptedConfig;
+    }
+
+    // If it's encrypted (string), decrypt it
+    if (typeof encryptedConfig === 'string') {
+      return this.tenantDbService.decryptIntegrationsConfig(encryptedConfig);
+    }
+
+    return {};
+  }
+
+  /**
+   * Generate Twilio access token for browser Voice SDK
+   */
+  async generateAccessToken(tenantDomain: string, userId: string): Promise<string> {
+    const { config, tenantId } = await this.getTwilioClient(tenantDomain);
+
+    if (!config.accountSid || !config.apiKey || !config.apiSecret) {
+      throw new Error('Twilio API credentials not configured. Please add API Key and Secret in Settings > Integrations');
+    }
+
+    // Create an access token
+    const token = new AccessToken(
+      config.accountSid,
+      config.apiKey,
+      config.apiSecret,
+      { identity: userId, ttl: 3600 } // 1 hour expiry
+    );
+
+    // Create a Voice grant
+    const voiceGrant = new VoiceGrant({
+      outgoingApplicationSid: config.twimlAppSid, // TwiML App SID for outbound calls
+      incomingAllow: true, // Allow incoming calls
+    });
+
+    token.addGrant(voiceGrant);
+
+    return token.toJwt();
+  }
+
+  /**
+   * Initiate outbound call
+   */
+  async initiateCall(params: {
+    tenantId: string;
+    userId: string;
+    toNumber: string;
+  }) {
+    const { tenantId: tenantDomain, userId, toNumber } = params;
+
+    try {
+      this.logger.log(`=== INITIATING CALL ===`);
+      this.logger.log(`Domain: ${tenantDomain}, To: ${toNumber}, User: ${userId}`);
+
+      // Validate phone number
+      if (!toNumber.match(/^\+?[1-9]\d{1,14}$/)) {
+        throw new Error(`Invalid phone number format: ${toNumber}. Use E.164 format (e.g., +1234567890)`);
+      }
+
+      const { client, config, tenantId } = await this.getTwilioClient(tenantDomain);
+      this.logger.log(`Twilio client obtained for tenant: ${tenantId}`);
+
+      // Get from number
+      const fromNumber = config.phoneNumber;
+      if (!fromNumber) {
+        throw new Error('Twilio phone number not configured');
+      }
+      this.logger.log(`From number: ${fromNumber}`);
+
+      // Construct tenant-specific webhook URLs using HTTPS (for Traefik)
+      const backendUrl = `https://${tenantDomain}`;
+      const twimlUrl = `${backendUrl}/api/voice/twiml/outbound?phoneNumber=${encodeURIComponent(fromNumber)}&toNumber=${encodeURIComponent(toNumber)}`;
+      const statusUrl = `${backendUrl}/api/voice/webhook/status`;
+      
+      this.logger.log(`TwiML URL: ${twimlUrl}`);
+      this.logger.log(`Status URL: ${statusUrl}`);
+
+      // Create call record in database
+      const tenantKnex = await this.tenantDbService.getTenantKnexById(tenantId);
+      const callId = uuidv4();
+
+      // Initiate call via Twilio
+      this.logger.log(`Calling Twilio API...`);
+      
+      // For Device-to-Number calls, we need to use a TwiML App SID
+      // The Twilio SDK will handle the Device connection, and we return TwiML with Dial
+      const call = await client.calls.create({
+        to: toNumber,
+        from: fromNumber,  // Your Twilio phone number
+        url: twimlUrl,
+        statusCallback: statusUrl,
+        statusCallbackEvent: ['initiated', 'ringing', 'answered', 'completed'],
+        statusCallbackMethod: 'POST',
+        record: false,
+        machineDetection: 'Enable',  // Optional: detect answering machines
+      });
+
+      this.logger.log(`Call created successfully: ${call.sid}, Status: ${call.status}`);
+
+      // Store call in database
+      await tenantKnex('calls').insert({
+        id: callId,
+        call_sid: call.sid,
+        direction: 'outbound',
+        from_number: fromNumber,
+        to_number: toNumber,
+        status: 'queued',
+        user_id: userId,
+        created_at: tenantKnex.fn.now(),
+        updated_at: tenantKnex.fn.now(),
+      });
+
+      // Store call state in memory
+      this.callStates.set(call.sid, {
+        callId,
+        callSid: call.sid,
+        tenantId,
+        userId,
+        direction: 'outbound',
+        status: 'queued',
+      });
+
+      this.logger.log(`Outbound call initiated: ${call.sid}`);
+
+      return {
+        callId,
+        callSid: call.sid,
+        status: 'queued',
+      };
+    } catch (error) {
+      this.logger.error('Failed to initiate call', error);
+      throw error;
+    }
+  }
+
+  /**
+   * Accept incoming call
+   */
+  async acceptCall(params: {
+    callSid: string;
+    tenantId: string;
+    userId: string;
+  }) {
+    const { callSid, tenantId, userId } = params;
+
+    try {
+      // Note: Twilio doesn't support updating call to 'in-progress' via API
+      // Call status is managed by TwiML and call flow
+      // We'll update our database status instead
+
+      // Update database
+      const tenantKnex = await this.tenantDbService.getTenantKnexById(tenantId);
+      await tenantKnex('calls')
+        .where({ call_sid: callSid })
+        .update({
+          status: 'in-progress',
+          user_id: userId,
+          started_at: tenantKnex.fn.now(),
+          updated_at: tenantKnex.fn.now(),
+        });
+
+      // Update state
+      const state = this.callStates.get(callSid) || {};
+      this.callStates.set(callSid, {
+        ...state,
+        status: 'in-progress',
+        userId,
+      });
+
+      this.logger.log(`Call accepted: ${callSid} by user ${userId}`);
+    } catch (error) {
+      this.logger.error('Failed to accept call', error);
+      throw error;
+    }
+  }
+
+  /**
+   * Reject incoming call
+   */
+  async rejectCall(callSid: string, tenantId: string) {
+    try {
+      const { client } = await this.getTwilioClient(tenantId);
+
+      // End the call
+      await client.calls(callSid).update({
+        status: 'completed',
+      });
+
+      // Update database
+      const tenantKnex = await this.tenantDbService.getTenantKnexById(tenantId);
+      await tenantKnex('calls')
+        .where({ call_sid: callSid })
+        .update({
+          status: 'canceled',
+          updated_at: tenantKnex.fn.now(),
+        });
+
+      // Clean up state
+      this.callStates.delete(callSid);
+
+      this.logger.log(`Call rejected: ${callSid}`);
+    } catch (error) {
+      this.logger.error('Failed to reject call', error);
+      throw error;
+    }
+  }
+
+  /**
+   * End active call
+   */
+  async endCall(callSid: string, tenantId: string) {
+    try {
+      const { client } = await this.getTwilioClient(tenantId);
+
+      // End the call
+      await client.calls(callSid).update({
+        status: 'completed',
+      });
+
+      // Clean up OpenAI connection if exists
+      const openaiWs = this.openaiConnections.get(callSid);
+      if (openaiWs) {
+        openaiWs.close();
+        this.openaiConnections.delete(callSid);
+      }
+
+      // Update database
+      const tenantKnex = await this.tenantDbService.getTenantKnexById(tenantId);
+      await tenantKnex('calls')
+        .where({ call_sid: callSid })
+        .update({
+          status: 'completed',
+          ended_at: tenantKnex.fn.now(),
+          updated_at: tenantKnex.fn.now(),
+        });
+
+      // Clean up state
+      this.callStates.delete(callSid);
+
+      this.logger.log(`Call ended: ${callSid}`);
+    } catch (error) {
+      this.logger.error('Failed to end call', error);
+      throw error;
+    }
+  }
+
+  /**
+   * Send DTMF tones
+   */
+  async sendDtmf(callSid: string, digit: string, tenantId: string) {
+    try {
+      const { client } = await this.getTwilioClient(tenantId);
+
+      // Twilio doesn't support sending DTMF directly via API
+      // This would need to be handled via TwiML <Play> of DTMF tones
+      this.logger.log(`DTMF requested for call ${callSid}: ${digit}`);
+
+      // TODO: Implement DTMF sending via TwiML update
+    } catch (error) {
+      this.logger.error('Failed to send DTMF', error);
+      throw error;
+    }
+  }
+
+  /**
+   * Get call state
+   */
+  async getCallState(callSid: string, tenantId: string) {
+    // Try memory first
+    if (this.callStates.has(callSid)) {
+      return this.callStates.get(callSid);
+    }
+
+    // Fallback to database
+    const tenantKnex = await this.tenantDbService.getTenantKnexById(tenantId);
+    const call = await tenantKnex('calls')
+      .where({ call_sid: callSid })
+      .first();
+
+    return call || null;
+  }
+
+  /**
+   * Update call status from webhook
+   */
+  async updateCallStatus(params: {
+    callSid: string;
+    tenantId: string;
+    status: string;
+    duration?: number;
+    recordingUrl?: string;
+  }) {
+    const { callSid, tenantId, status, duration, recordingUrl } = params;
+
+    try {
+      const tenantKnex = await this.tenantDbService.getTenantKnexById(tenantId);
+
+      const updateData: any = {
+        status,
+        updated_at: tenantKnex.fn.now(),
+      };
+
+      if (duration !== undefined) {
+        updateData.duration_seconds = duration;
+      }
+
+      if (recordingUrl) {
+        updateData.recording_url = recordingUrl;
+      }
+
+      if (status === 'completed') {
+        updateData.ended_at = tenantKnex.fn.now();
+      }
+
+      await tenantKnex('calls')
+        .where({ call_sid: callSid })
+        .update(updateData);
+
+      // Update state
+      const state = this.callStates.get(callSid);
+      if (state) {
+        this.callStates.set(callSid, { ...state, status });
+      }
+
+      this.logger.log(`Call status updated: ${callSid} -> ${status}`);
+    } catch (error) {
+      this.logger.error('Failed to update call status', error);
+      throw error;
+    }
+  }
+
+  /**
+   * Initialize OpenAI Realtime connection for call
+   */
+  async initializeOpenAIRealtime(params: {
+    callSid: string;
+    tenantId: string;
+    userId: string;
+  }) {
+    const { callSid, tenantId, userId } = params;
+
+    try {
+      // Get OpenAI config - tenantId might be a domain, so look it up
+      const centralPrisma = getCentralPrisma();
+      
+      // Try to find tenant by domain first (if tenantId is like "tenant1")
+      let tenant;
+      if (!tenantId.match(/^[0-9a-f]{8}-[0-9a-f]{4}-/i)) {
+        // Looks like a domain, not a UUID
+        const domainRecord = await centralPrisma.domain.findUnique({
+          where: { domain: tenantId },
+          include: { tenant: { select: { id: true, integrationsConfig: true } } },
+        });
+        tenant = domainRecord?.tenant;
+      } else {
+        // It's a UUID
+        tenant = await centralPrisma.tenant.findUnique({
+          where: { id: tenantId },
+          select: { id: true, integrationsConfig: true },
+        });
+      }
+
+      if (!tenant) {
+        this.logger.warn(`Tenant not found for identifier: ${tenantId}`);
+        return;
+      }
+
+      const config = this.getIntegrationConfig(tenant?.integrationsConfig as any);
+
+      if (!config.openai?.apiKey) {
+        this.logger.warn('OpenAI not configured for tenant, skipping AI features');
+        return;
+      }
+
+      // Connect to OpenAI Realtime API
+      const model = config.openai.model || 'gpt-4o-realtime-preview-2024-10-01';
+      const ws = new WebSocket(`wss://api.openai.com/v1/realtime?model=${model}`, {
+        headers: {
+          'Authorization': `Bearer ${config.openai.apiKey}`,
+          'OpenAI-Beta': 'realtime=v1',
+        },
+      });
+
+      ws.on('open', () => {
+        this.logger.log(`OpenAI Realtime connected for call ${callSid}`);
+
+        // Add to connections map only after it's open
+        this.openaiConnections.set(callSid, ws);
+
+        // Store call state with userId for later use
+        this.callStates.set(callSid, {
+          callSid,
+          tenantId: tenant.id,
+          userId,
+          status: 'in-progress',
+        });
+        this.logger.log(`📝 Stored call state for ${callSid} with userId: ${userId}`);
+
+        // Initialize session
+        ws.send(JSON.stringify({
+          type: 'session.update',
+          session: {
+            model: config.openai.model || 'gpt-4o-realtime-preview',
+            voice: config.openai.voice || 'alloy',
+            instructions: `You are an AI assistant in LISTENING MODE, helping a sales/support agent during their phone call.
+
+IMPORTANT: You are NOT talking to the caller. You are advising the agent who is handling the call.
+
+Your role:
+- Listen to the conversation between the agent and the caller
+- Provide concise, actionable suggestions to help the agent
+- Recommend CRM actions (search contacts, create tasks, update records)
+- Alert the agent to important information or next steps
+- Keep suggestions brief (1-2 sentences max)
+
+Format your suggestions like:
+"💡 Suggestion: [your advice]"
+"⚠️ Alert: [important notice]"
+"📋 Action: [recommended CRM action]"`,
+            turn_detection: {
+              type: 'server_vad',
+            },
+            tools: this.getOpenAITools(),
+          },
+        }));
+      });
+
+      ws.on('message', (data: Buffer) => {
+        // Pass the tenant UUID (tenant.id) instead of the domain string
+        this.handleOpenAIMessage(callSid, tenant.id, userId, JSON.parse(data.toString()));
+      });
+
+      ws.on('error', (error) => {
+        this.logger.error(`OpenAI WebSocket error for call ${callSid}:`, error);
+        this.openaiConnections.delete(callSid);
+      });
+
+      ws.on('close', (code, reason) => {
+        this.logger.log(`OpenAI Realtime disconnected for call ${callSid} - Code: ${code}, Reason: ${reason.toString()}`);
+        this.openaiConnections.delete(callSid);
+      });
+
+      // Don't add to connections here - wait for 'open' event
+    } catch (error) {
+      this.logger.error('Failed to initialize OpenAI Realtime', error);
+    }
+  }
+
+  /**
+   * Send audio data to OpenAI Realtime API
+   */
+  async sendAudioToOpenAI(callSid: string, audioBase64: string) {
+    const ws = this.openaiConnections.get(callSid);
+    
+    if (!ws) {
+      this.logger.warn(`No OpenAI connection for call ${callSid}`);
+      return;
+    }
+
+    try {
+      // Send audio chunk to OpenAI
+      ws.send(JSON.stringify({
+        type: 'input_audio_buffer.append',
+        audio: audioBase64,
+      }));
+    } catch (error) {
+      this.logger.error(`Failed to send audio to OpenAI for call ${callSid}`, error);
+    }
+  }
+
+  /**
+   * Commit audio buffer to OpenAI (trigger processing)
+   */
+  async commitAudioBuffer(callSid: string) {
+    const ws = this.openaiConnections.get(callSid);
+    
+    if (!ws) {
+      return;
+    }
+
+    try {
+      ws.send(JSON.stringify({
+        type: 'input_audio_buffer.commit',
+      }));
+    } catch (error) {
+      this.logger.error(`Failed to commit audio buffer for call ${callSid}`, error);
+    }
+  }
+
+  /**
+   * Clean up OpenAI connection for a call
+   */
+  async cleanupOpenAIConnection(callSid: string) {
+    const ws = this.openaiConnections.get(callSid);
+    
+    if (ws) {
+      try {
+        ws.close();
+        this.openaiConnections.delete(callSid);
+        this.logger.log(`Cleaned up OpenAI connection for call ${callSid}`);
+      } catch (error) {
+        this.logger.error(`Error cleaning up OpenAI connection for call ${callSid}`, error);
+      }
+    }
+  }
+
+  /**
+   * Handle OpenAI Realtime messages
+   */
+  private async handleOpenAIMessage(
+    callSid: string,
+    tenantId: string,
+    userId: string,
+    message: any,
+  ) {
+    try {
+      switch (message.type) {
+        case 'conversation.item.created':
+          // Skip logging for now
+          break;
+
+        case 'response.audio.delta':
+          // OpenAI is sending audio response (skip logging)
+          const state = this.callStates.get(callSid);
+          if (state?.streamSid && message.delta) {
+            if (!state.pendingAudio) {
+              state.pendingAudio = [];
+            }
+            state.pendingAudio.push(message.delta);
+          }
+          break;
+
+        case 'response.audio.done':
+          // Skip logging
+          break;
+
+        case 'response.audio_transcript.delta':
+          // Skip - not transmitting individual words to frontend
+          break;
+
+        case 'response.audio_transcript.done':
+          // Final transcript - this contains the AI's actual text suggestions!
+          const transcript = message.transcript;
+          this.logger.log(`💡 AI Suggestion: "${transcript}"`);
+          
+          // Save to database
+          await this.updateCallTranscript(callSid, tenantId, transcript);
+          
+          // Also send as suggestion to frontend if it looks like a suggestion
+          if (transcript && transcript.length > 0) {
+            // Determine suggestion type
+            let suggestionType: 'response' | 'action' | 'insight' = 'insight';
+            if (transcript.includes('💡') || transcript.toLowerCase().includes('suggest')) {
+              suggestionType = 'response';
+            } else if (transcript.includes('📋') || transcript.toLowerCase().includes('action')) {
+              suggestionType = 'action';
+            } else if (transcript.includes('⚠️') || transcript.toLowerCase().includes('alert')) {
+              suggestionType = 'insight';
+            }
+            
+            // Emit to frontend
+            const state = this.callStates.get(callSid);
+            this.logger.log(`📊 Call state - userId: ${state?.userId}, gateway: ${!!this.voiceGateway}`);
+            
+            if (state?.userId && this.voiceGateway) {
+              this.logger.log(`📤 Sending to user ${state.userId}`);
+              await this.voiceGateway.notifyAiSuggestion(state.userId, {
+                type: suggestionType,
+                text: transcript,
+                callSid,
+                timestamp: new Date().toISOString(),
+              });
+              this.logger.log(`✅ Suggestion sent to agent`);
+            } else {
+              this.logger.warn(`❌ Cannot send - userId: ${state?.userId}, gateway: ${!!this.voiceGateway}, callStates has ${this.callStates.size} entries`);
+            }
+          }
+          break;
+
+        case 'response.function_call_arguments.done':
+          // Tool call completed
+          await this.handleToolCall(callSid, tenantId, userId, message);
+          break;
+
+        case 'session.created':
+        case 'session.updated':
+        case 'response.created':
+        case 'response.output_item.added':
+        case 'response.content_part.added':
+        case 'response.content_part.done':
+        case 'response.output_item.done':
+        case 'response.done':
+        case 'input_audio_buffer.speech_started':
+        case 'input_audio_buffer.speech_stopped':
+        case 'input_audio_buffer.committed':
+          // Skip logging for these (too noisy)
+          break;
+
+        case 'error':
+          this.logger.error(`OpenAI error for call ${callSid}: ${JSON.stringify(message.error)}`);
+          break;
+
+        default:
+          // Only log unhandled types occasionally
+          break;
+      }
+    } catch (error) {
+      this.logger.error('Failed to handle OpenAI message', error);
+    }
+  }
+
+  /**
+   * Define OpenAI tools for CRM actions
+   */
+  private getOpenAITools(): any[] {
+    return [
+      {
+        type: 'function',
+        name: 'search_contact',
+        description: 'Search for a contact by name, email, or phone number',
+        parameters: {
+          type: 'object',
+          properties: {
+            query: {
+              type: 'string',
+              description: 'Search query (name, email, or phone)',
+            },
+          },
+          required: ['query'],
+        },
+      },
+      {
+        type: 'function',
+        name: 'create_task',
+        description: 'Create a follow-up task based on the call',
+        parameters: {
+          type: 'object',
+          properties: {
+            title: {
+              type: 'string',
+              description: 'Task title',
+            },
+            description: {
+              type: 'string',
+              description: 'Task description',
+            },
+            dueDate: {
+              type: 'string',
+              description: 'Due date (ISO format)',
+            },
+          },
+          required: ['title'],
+        },
+      },
+      {
+        type: 'function',
+        name: 'update_contact',
+        description: 'Update contact information',
+        parameters: {
+          type: 'object',
+          properties: {
+            contactId: {
+              type: 'string',
+              description: 'Contact ID',
+            },
+            fields: {
+              type: 'object',
+              description: 'Fields to update',
+            },
+          },
+          required: ['contactId', 'fields'],
+        },
+      },
+    ];
+  }
+
+  /**
+   * Handle tool calls from OpenAI
+   */
+  private async handleToolCall(
+    callSid: string,
+    tenantId: string,
+    userId: string,
+    message: any,
+  ) {
+    // TODO: Implement actual tool execution
+    // This would call the appropriate services based on the tool name
+    // Respecting RBAC permissions for the user
+    this.logger.log(`Tool call for call ${callSid}: ${message.name}`);
+  }
+
+  /**
+   * Update call transcript
+   */
+  private async updateCallTranscript(
+    callSid: string,
+    tenantId: string,
+    transcript: string,
+  ) {
+    try {
+      const tenantKnex = await this.tenantDbService.getTenantKnexById(tenantId);
+      await tenantKnex('calls')
+        .where({ call_sid: callSid })
+        .update({
+          ai_transcript: transcript,
+          updated_at: tenantKnex.fn.now(),
+        });
+    } catch (error) {
+      this.logger.error('Failed to update transcript', error);
+    }
+  }
+
+  /**
+   * Get call history for user
+   */
+  async getCallHistory(tenantId: string, userId: string, limit = 50) {
+    try {
+      const tenantKnex = await this.tenantDbService.getTenantKnexById(tenantId);
+      const calls = await tenantKnex('calls')
+        .where({ user_id: userId })
+        .orderBy('created_at', 'desc')
+        .limit(limit);
+
+      return calls;
+    } catch (error) {
+      this.logger.error('Failed to get call history', error);
+      throw error;
+    }
+  }
+}