feat(ai): warm the vector namespace cache on session start

apps/server/src/core/user/user.controller.ts

@@ -6,6 +6,7 @@ import {
   Post,
   UseGuards,
 } from '@nestjs/common';
+import { EventEmitter2 } from '@nestjs/event-emitter';
 import { UserService } from './user.service';
 import { UpdateUserDto } from './dto/update-user.dto';
 import { AuthUser } from '../../common/decorators/auth-user.decorator';
@@ -13,6 +14,7 @@ import { JwtAuthGuard } from '../../common/guards/jwt-auth.guard';
 import { AuthWorkspace } from '../../common/decorators/auth-workspace.decorator';
 import { User, Workspace } from '@docmost/db/types/entity.types';
 import { WorkspaceRepo } from '@docmost/db/repos/workspace/workspace.repo';
+import { EventName } from '../../common/events/event.contants';
 
 @UseGuards(JwtAuthGuard)
 @Controller('users')
@@ -20,6 +22,7 @@ export class UserController {
   constructor(
     private readonly userService: UserService,
     private readonly workspaceRepo: WorkspaceRepo,
+    private readonly eventEmitter: EventEmitter2,
   ) {}
 
   @HttpCode(HttpStatus.OK)
@@ -39,6 +42,11 @@ export class UserController {
       memberCount,
     };
 
+    this.eventEmitter.emit(EventName.USER_SESSION_STARTED, {
+      userId: authUser.id,
+      workspaceId: workspace.id,
+    });
+
     return { user: authUser, workspace: workspaceInfo };
   }