feat: implement connection request management including schema, API endpoints, and business logic for users and agents.

src/app.module.ts

@@ -14,6 +14,7 @@ import { AgentTypesModule } from './agent-types';
 import { AgentsModule } from './agents';
 import { UploadModule } from './upload';
 import { ProfileFieldsModule } from './profile-fields';
+import { ConnectionRequestsModule } from './connection-requests';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
 
@@ -51,6 +52,7 @@ import { AppService } from './app.service';
     AgentsModule,
     UploadModule,
     ProfileFieldsModule,
+    ConnectionRequestsModule,
   ],
   controllers: [AppController],
   providers: [