WIP - related lists and look up field

backend/src/tenant/central-admin.controller.ts

@@ -6,6 +6,7 @@ import {
   Delete,
   Body,
   Param,
+  Query,
   UseGuards,
   UnauthorizedException,
   Req,
@@ -112,9 +113,21 @@ export class CentralAdminController {
   // ==================== DOMAINS ====================
   
   @Get('domains')
-  async getDomains(@Req() req: any) {
+  async getDomains(
+    @Req() req: any,
+    @Query('parentId') parentId?: string,
+    @Query('tenantId') tenantId?: string,
+  ) {
     this.checkCentralAdmin(req);
-    return CentralDomain.query().withGraphFetched('tenant');
+    
+    let query = CentralDomain.query().withGraphFetched('tenant');
+    
+    // Filter by parent/tenant ID if provided (for related lists)
+    if (parentId || tenantId) {
+      query = query.where('tenantId', parentId || tenantId);
+    }
+    
+    return query;
   }
 
   @Get('domains/:id')