diff --git a/.gitea/workflows/deploy.yml b/.gitea/workflows/deploy.yml
index a4932f4..67218c0 100644
--- a/.gitea/workflows/deploy.yml
+++ b/.gitea/workflows/deploy.yml
@@ -32,20 +32,7 @@ jobs:
             --network zhixi-net \
             --restart unless-stopped \
             -p 3001:3000 \
-            -e NODE_ENV=production \
-            -e PORT=3000 \
-            -e DATABASE_URL='mysql://zhixi_user:Zhixi@2026!App@mysql-zhixi:3306/zhixi' \
-            -e REDIS_HOST=redis-zhixi \
-            -e REDIS_PORT=6379 \
-            -e REDIS_PASSWORD='Rds@nTsgKrcqAkbuf6PwJIFMZQzF' \
-            -e JWT_SECRET=98b1e7e377a40021ad7c46c55e467d2a218a89db7afc7c912780152ad64bdc45 \
-            -e AI_PROVIDER=mock \
-            -e APPLE_BUNDLE_ID=cloud.longde.AIStudyApp \
-            -e APPLE_ISSUER=https://appleid.apple.com \
-            -e APPLE_JWKS_URL=https://appleid.apple.com/auth/keys \
-            -e ENABLE_SWAGGER=true \
-            -e SWAGGER_USER=admin \
-            -e SWAGGER_PASSWORD='Swgr@fmDentAYVXQUpG6oZDpJ' \
+            --env-file /etc/zhixi/.env.production \
             zhixi-api:latest
 
       - name: Health check
diff --git a/src/app.module.ts b/src/app.module.ts
index ca768c0..cca0c7f 100644
--- a/src/app.module.ts
+++ b/src/app.module.ts
@@ -1,6 +1,6 @@
 import { Module } from '@nestjs/common';
 import { ConfigModule, ConfigService } from '@nestjs/config';
-import { APP_FILTER, APP_GUARD, APP_PIPE } from '@nestjs/core';
+import { APP_FILTER, APP_GUARD, APP_INTERCEPTOR, APP_PIPE } from '@nestjs/core';
 import { JwtModule } from '@nestjs/jwt';
 
 import { PrismaModule } from './infrastructure/database/prisma.module';
@@ -27,8 +27,15 @@ import { FeedbackModule } from './modules/feedback/feedback.module';
 import { WaitlistModule } from './modules/waitlist/waitlist.module';
 
 import { JwtAuthGuard } from './common/guards/jwt-auth.guard';
+import { RolesGuard } from './common/guards/roles.guard';
 import { GlobalExceptionFilter } from './common/filters/global-exception.filter';
 import { StrictValidationPipe } from './common/pipes/strict-validation.pipe';
+import { RateLimitService } from './common/utils/rate-limit.service';
+import { ResponseInterceptor } from './common/interceptors/response.interceptor';
+
+import { AiAnalysisWorker } from './workers/ai-analysis.worker';
+import { DocumentImportWorker } from './workers/document-import.worker';
+import { NotificationWorker } from './workers/notification.worker';
 
 import appConfig from './config/app.config';
 import databaseConfig from './config/database.config';
@@ -85,8 +92,14 @@ import appleConfig from './config/apple.config';
   ],
   providers: [
     { provide: APP_GUARD, useClass: JwtAuthGuard },
+    { provide: APP_GUARD, useClass: RolesGuard },
     { provide: APP_FILTER, useClass: GlobalExceptionFilter },
     { provide: APP_PIPE, useClass: StrictValidationPipe },
+    { provide: APP_INTERCEPTOR, useClass: ResponseInterceptor },
+    RateLimitService,
+    AiAnalysisWorker,
+    DocumentImportWorker,
+    NotificationWorker,
   ],
 })
 export class AppModule {}
diff --git a/src/common/decorators/roles.decorator.ts b/src/common/decorators/roles.decorator.ts
new file mode 100644
index 0000000..17fffbb
--- /dev/null
+++ b/src/common/decorators/roles.decorator.ts
@@ -0,0 +1,5 @@
+import { SetMetadata } from '@nestjs/common';
+import { Role } from '../types/role.enum';
+
+export const ROLES_KEY = 'roles';
+export const Roles = (...roles: Role[]) => SetMetadata(ROLES_KEY, roles);
diff --git a/src/common/guards/roles.guard.ts b/src/common/guards/roles.guard.ts
new file mode 100644
index 0000000..ad9821e
--- /dev/null
+++ b/src/common/guards/roles.guard.ts
@@ -0,0 +1,34 @@
+import { Injectable, CanActivate, ExecutionContext, ForbiddenException } from '@nestjs/common';
+import { Reflector } from '@nestjs/core';
+import { ROLES_KEY } from '../decorators/roles.decorator';
+import { Role, hasRole } from '../types/role.enum';
+
+@Injectable()
+export class RolesGuard implements CanActivate {
+  constructor(private readonly reflector: Reflector) {}
+
+  canActivate(context: ExecutionContext): boolean {
+    const requiredRoles = this.reflector.getAllAndOverride<Role[]>(ROLES_KEY, [
+      context.getHandler(),
+      context.getClass(),
+    ]);
+
+    if (!requiredRoles || requiredRoles.length === 0) {
+      return true;
+    }
+
+    const request = context.switchToHttp().getRequest();
+    const user = request.user;
+
+    if (!user) {
+      throw new ForbiddenException('请先登录');
+    }
+
+    const hasRequiredRole = requiredRoles.some((role) => hasRole(user.role, role));
+    if (!hasRequiredRole) {
+      throw new ForbiddenException('权限不足');
+    }
+
+    return true;
+  }
+}
diff --git a/src/common/types/role.enum.ts b/src/common/types/role.enum.ts
new file mode 100644
index 0000000..e0cd461
--- /dev/null
+++ b/src/common/types/role.enum.ts
@@ -0,0 +1,18 @@
+export enum Role {
+  USER = 'USER',
+  ADMIN = 'ADMIN',
+  SUPER_ADMIN = 'SUPER_ADMIN',
+}
+
+export const ROLE_HIERARCHY: Record<Role, Role[]> = {
+  [Role.USER]: [Role.USER],
+  [Role.ADMIN]: [Role.USER, Role.ADMIN],
+  [Role.SUPER_ADMIN]: [Role.USER, Role.ADMIN, Role.SUPER_ADMIN],
+};
+
+export function hasRole(userRole: string | undefined, required: Role): boolean {
+  if (!userRole) return false;
+  const resolved = ROLE_HIERARCHY[userRole as Role];
+  if (!resolved) return false;
+  return resolved.includes(required);
+}
diff --git a/src/infrastructure/queue/queue.module.ts b/src/infrastructure/queue/queue.module.ts
index 3e20ad4..365e846 100644
--- a/src/infrastructure/queue/queue.module.ts
+++ b/src/infrastructure/queue/queue.module.ts
@@ -1,9 +1,35 @@
 import { Global, Module } from '@nestjs/common';
-import { QueueService } from './queue.service';
+import { BullModule } from '@nestjs/bullmq';
+import { ConfigService } from '@nestjs/config';
+import { QueueService, QUEUE_AI_ANALYSIS, QUEUE_DOCUMENT_IMPORT, QUEUE_NOTIFICATION } from './queue.service';
 
 @Global()
 @Module({
+  imports: [
+    BullModule.forRootAsync({
+      inject: [ConfigService],
+      useFactory: (config: ConfigService) => {
+        const url = config.get<string>('redis.url');
+        if (url) {
+          return { connection: { url } };
+        }
+        return {
+          connection: {
+            host: config.get<string>('redis.host', 'localhost'),
+            port: config.get<number>('redis.port', 6379),
+            password: config.get<string>('redis.password'),
+            db: config.get<number>('redis.db', 0),
+          },
+        };
+      },
+    }),
+    BullModule.registerQueue(
+      { name: QUEUE_AI_ANALYSIS },
+      { name: QUEUE_DOCUMENT_IMPORT },
+      { name: QUEUE_NOTIFICATION },
+    ),
+  ],
   providers: [QueueService],
-  exports: [QueueService],
+  exports: [QueueService, BullModule],
 })
 export class QueueModule {}
diff --git a/src/infrastructure/queue/queue.service.ts b/src/infrastructure/queue/queue.service.ts
index 12a226e..bf1acee 100644
--- a/src/infrastructure/queue/queue.service.ts
+++ b/src/infrastructure/queue/queue.service.ts
@@ -1,23 +1,39 @@
-import { Injectable } from '@nestjs/common';
+import { Injectable, Logger } from '@nestjs/common';
+import { InjectQueue } from '@nestjs/bullmq';
+import { Queue } from 'bullmq';
+
+export const QUEUE_AI_ANALYSIS = 'ai-analysis';
+export const QUEUE_DOCUMENT_IMPORT = 'document-import';
+export const QUEUE_NOTIFICATION = 'notification';
 
 @Injectable()
 export class QueueService {
-  private queues: Map<string, any[]> = new Map();
+  private readonly logger = new Logger(QueueService.name);
 
-  add(queueName: string, data: any) {
-    if (!this.queues.has(queueName)) {
-      this.queues.set(queueName, []);
+  constructor(
+    @InjectQueue(QUEUE_AI_ANALYSIS) private readonly aiQueue: Queue,
+    @InjectQueue(QUEUE_DOCUMENT_IMPORT) private readonly importQueue: Queue,
+    @InjectQueue(QUEUE_NOTIFICATION) private readonly notifyQueue: Queue,
+  ) {}
+
+  async add(queueName: string, data: any) {
+    const queue = this.getQueue(queueName);
+    const job = await queue.add(queueName, data);
+    this.logger.log(`Job ${job.id} added to ${queueName}`);
+    return job;
+  }
+
+  async getJob(queueName: string, jobId: string) {
+    const queue = this.getQueue(queueName);
+    return queue.getJob(jobId);
+  }
+
+  private getQueue(name: string): Queue {
+    switch (name) {
+      case QUEUE_AI_ANALYSIS: return this.aiQueue;
+      case QUEUE_DOCUMENT_IMPORT: return this.importQueue;
+      case QUEUE_NOTIFICATION: return this.notifyQueue;
+      default: throw new Error(`Unknown queue: ${name}`);
     }
-    this.queues.get(queueName)!.push(data);
-  }
-
-  async processNext(queueName: string): Promise<any | null> {
-    const queue = this.queues.get(queueName);
-    if (!queue || queue.length === 0) return null;
-    return queue.shift();
-  }
-
-  getQueueNames(): string[] {
-    return Array.from(this.queues.keys());
   }
 }
diff --git a/src/modules/active-recall/active-recall.controller.ts b/src/modules/active-recall/active-recall.controller.ts
index 9464e25..deaf952 100644
--- a/src/modules/active-recall/active-recall.controller.ts
+++ b/src/modules/active-recall/active-recall.controller.ts
@@ -1,7 +1,8 @@
-import { Controller, Get, Post, Body, Param } from '@nestjs/common';
+import { Controller, Get, Post, Body, Param, Query } from '@nestjs/common';
 import { ApiTags, ApiOperation } from '@nestjs/swagger';
 import { ActiveRecallService } from './active-recall.service';
 import { CurrentUser } from '../../common/decorators/current-user.decorator';
+import { PaginationDto } from '../../common/dto/pagination.dto';
 import type { UserPayload } from '../../common/types';
 
 @ApiTags('active-recall')
@@ -11,8 +12,8 @@ export class ActiveRecallController {
 
   @Get()
   @ApiOperation({ summary: '获取主动回忆问题列表' })
-  async findAll(@CurrentUser() user: UserPayload) {
-    return this.service.findByUserId(String(user?.id || 'anonymous'));
+  async findAll(@CurrentUser() user: UserPayload, @Query() pagination: PaginationDto) {
+    return this.service.findByUserId(String(user?.id || 'anonymous'), pagination);
   }
 
   @Post(':id/submit')
diff --git a/src/modules/active-recall/active-recall.repository.ts b/src/modules/active-recall/active-recall.repository.ts
index c90a161..2143858 100644
--- a/src/modules/active-recall/active-recall.repository.ts
+++ b/src/modules/active-recall/active-recall.repository.ts
@@ -5,10 +5,14 @@ import { PrismaService } from '../../infrastructure/database/prisma.service';
 export class ActiveRecallRepository {
   constructor(private readonly prisma: PrismaService) {}
 
-  async findByUserId(userId: string) {
+  async findByUserId(userId: string, pagination?: { page?: number; limit?: number }) {
+    const page = pagination?.page ?? 1;
+    const limit = pagination?.limit ?? 20;
     return this.prisma.activeRecallQuestion.findMany({
       where: { userId },
       orderBy: { createdAt: 'desc' },
+      skip: (page - 1) * limit,
+      take: limit,
     });
   }
 
diff --git a/src/modules/active-recall/active-recall.service.ts b/src/modules/active-recall/active-recall.service.ts
index ec2e96a..c0caad3 100644
--- a/src/modules/active-recall/active-recall.service.ts
+++ b/src/modules/active-recall/active-recall.service.ts
@@ -1,6 +1,7 @@
 import { Injectable, Logger, NotFoundException } from '@nestjs/common';
 import { ActiveRecallRepository } from './active-recall.repository';
 import { ActiveRecallAnalysisWorkflow } from '../ai/workflows/active-recall-analysis.workflow';
+import type { PaginationDto } from '../../common/dto/pagination.dto';
 
 @Injectable()
 export class ActiveRecallService {
@@ -11,8 +12,8 @@ export class ActiveRecallService {
     private readonly analysisWorkflow: ActiveRecallAnalysisWorkflow,
   ) {}
 
-  async findByUserId(userId: string) {
-    return this.repository.findByUserId(userId);
+  async findByUserId(userId: string, pagination: PaginationDto) {
+    return this.repository.findByUserId(userId, pagination);
   }
 
   async submit(userId: string, questionId: string, body: { answerText: string }) {
@@ -21,17 +22,23 @@ export class ActiveRecallService {
 
     const answer = await this.repository.createAnswer(userId, questionId, body);
 
-    this.analysisWorkflow.execute({
-      userId,
-      questionText: question.questionText,
-      knowledgeItemContent: '',
-      userAnswer: body.answerText,
-    }).then((result) => {
-      this.logger.log(`Analysis complete for answer ${answer.id}: score=${result.score}`);
-    }).catch((err) => {
-      this.logger.error(`Analysis failed for answer ${answer.id}: ${err.message}`);
-    });
+    // Fire-and-forget: answer is saved, analysis runs async
+    void this.runAnalysis(answer.id, userId, question.questionText, body.answerText);
 
     return answer;
   }
+
+  private async runAnalysis(answerId: string, userId: string, questionText: string, userAnswer: string) {
+    try {
+      const result = await this.analysisWorkflow.execute({
+        userId,
+        questionText,
+        knowledgeItemContent: '',
+        userAnswer,
+      });
+      this.logger.log(`Analysis complete for answer ${answerId}: score=${result.score}`);
+    } catch (err: any) {
+      this.logger.error(`Analysis failed for answer ${answerId}: ${err.message}`);
+    }
+  }
 }
diff --git a/src/modules/ai-analysis/ai-analysis.module.ts b/src/modules/ai-analysis/ai-analysis.module.ts
index bbf4c75..b3a4d16 100644
--- a/src/modules/ai-analysis/ai-analysis.module.ts
+++ b/src/modules/ai-analysis/ai-analysis.module.ts
@@ -8,6 +8,6 @@ import { AiAnalysisRepository } from './ai-analysis.repository';
   imports: [AiModule],
   controllers: [AiAnalysisController],
   providers: [AiAnalysisService, AiAnalysisRepository],
-  exports: [AiAnalysisService],
+  exports: [AiAnalysisService, AiAnalysisRepository],
 })
 export class AiAnalysisModule {}
diff --git a/src/modules/document-import/document-import.module.ts b/src/modules/document-import/document-import.module.ts
index 68a5bd4..fe458a9 100644
--- a/src/modules/document-import/document-import.module.ts
+++ b/src/modules/document-import/document-import.module.ts
@@ -6,6 +6,6 @@ import { DocumentImportRepository } from './document-import.repository';
 @Module({
   controllers: [DocumentImportController],
   providers: [DocumentImportService, DocumentImportRepository],
-  exports: [DocumentImportService],
+  exports: [DocumentImportService, DocumentImportRepository],
 })
 export class DocumentImportModule {}
diff --git a/src/modules/focus-items/focus-items.controller.ts b/src/modules/focus-items/focus-items.controller.ts
index 70fc328..e9ae57a 100644
--- a/src/modules/focus-items/focus-items.controller.ts
+++ b/src/modules/focus-items/focus-items.controller.ts
@@ -1,7 +1,8 @@
-import { Controller, Get, Post, Patch, Body, Param } from '@nestjs/common';
+import { Controller, Get, Post, Patch, Body, Param, Query } from '@nestjs/common';
 import { ApiTags, ApiOperation } from '@nestjs/swagger';
 import { FocusItemsService } from './focus-items.service';
 import { CurrentUser } from '../../common/decorators/current-user.decorator';
+import { PaginationDto } from '../../common/dto/pagination.dto';
 import type { UserPayload } from '../../common/types';
 
 @ApiTags('focus-items')
@@ -11,8 +12,8 @@ export class FocusItemsController {
 
   @Get()
   @ApiOperation({ summary: '获取待巩固项列表' })
-  async findAll(@CurrentUser() user: UserPayload) {
-    return this.focusItemsService.findAll(String(user?.id || 'anonymous'));
+  async findAll(@CurrentUser() user: UserPayload, @Query() pagination: PaginationDto) {
+    return this.focusItemsService.findAll(String(user?.id || 'anonymous'), pagination);
   }
 
   @Post()
diff --git a/src/modules/focus-items/focus-items.repository.ts b/src/modules/focus-items/focus-items.repository.ts
index 9e6f75e..251d72b 100644
--- a/src/modules/focus-items/focus-items.repository.ts
+++ b/src/modules/focus-items/focus-items.repository.ts
@@ -5,10 +5,14 @@ import { PrismaService } from '../../infrastructure/database/prisma.service';
 export class FocusItemsRepository {
   constructor(private readonly prisma: PrismaService) {}
 
-  async findAll(userId: string) {
+  async findAll(userId: string, pagination?: { page?: number; limit?: number }) {
+    const page = pagination?.page ?? 1;
+    const limit = pagination?.limit ?? 20;
     return this.prisma.focusItem.findMany({
       where: { userId, deletedAt: null },
       orderBy: { createdAt: 'desc' },
+      skip: (page - 1) * limit,
+      take: limit,
     });
   }
 
diff --git a/src/modules/focus-items/focus-items.service.ts b/src/modules/focus-items/focus-items.service.ts
index 8ca400c..00d9c77 100644
--- a/src/modules/focus-items/focus-items.service.ts
+++ b/src/modules/focus-items/focus-items.service.ts
@@ -5,8 +5,8 @@ import { FocusItemsRepository } from './focus-items.repository';
 export class FocusItemsService {
   constructor(private readonly repository: FocusItemsRepository) {}
 
-  async findAll(userId: string) {
-    return this.repository.findAll(userId);
+  async findAll(userId: string, pagination?: { page?: number; limit?: number }) {
+    return this.repository.findAll(userId, pagination);
   }
 
   async create(userId: string, dto: any) {
diff --git a/src/modules/knowledge-base/knowledge-base.controller.ts b/src/modules/knowledge-base/knowledge-base.controller.ts
index 32988f6..506971d 100644
--- a/src/modules/knowledge-base/knowledge-base.controller.ts
+++ b/src/modules/knowledge-base/knowledge-base.controller.ts
@@ -2,6 +2,7 @@ import { Controller, Get, Post, Patch, Delete, Body, Param, Query } from '@nestj
 import { ApiTags, ApiOperation, ApiResponse } from '@nestjs/swagger';
 import { KnowledgeBaseService } from './knowledge-base.service';
 import { CurrentUser } from '../../common/decorators/current-user.decorator';
+import { PaginationDto } from '../../common/dto/pagination.dto';
 import type { UserPayload } from '../../common/types';
 
 @ApiTags('knowledge-base')
@@ -17,8 +18,8 @@ export class KnowledgeBaseController {
 
   @Get()
   @ApiOperation({ summary: '获取知识库列表' })
-  async findAll(@CurrentUser() user: UserPayload, @Query() query: any) {
-    return this.service.findAll(String(user?.id || 'anonymous'), query);
+  async findAll(@CurrentUser() user: UserPayload, @Query() pagination: PaginationDto) {
+    return this.service.findAll(String(user?.id || 'anonymous'), pagination);
   }
 
   @Get(':id')
diff --git a/src/modules/knowledge-base/knowledge-base.repository.ts b/src/modules/knowledge-base/knowledge-base.repository.ts
index 55e2e94..f30f4b8 100644
--- a/src/modules/knowledge-base/knowledge-base.repository.ts
+++ b/src/modules/knowledge-base/knowledge-base.repository.ts
@@ -21,10 +21,14 @@ export class KnowledgeBaseRepository {
     return this.prisma.knowledgeBase.findUnique({ where: { id } });
   }
 
-  async findAllByUserId(userId: string) {
+  async findAllByUserId(userId: string, pagination?: { page?: number; limit?: number }) {
+    const page = pagination?.page ?? 1;
+    const limit = pagination?.limit ?? 20;
     return this.prisma.knowledgeBase.findMany({
       where: { userId, deletedAt: null },
       orderBy: { updatedAt: 'desc' },
+      skip: (page - 1) * limit,
+      take: limit,
     });
   }
 
diff --git a/src/modules/knowledge-base/knowledge-base.service.ts b/src/modules/knowledge-base/knowledge-base.service.ts
index 2ef21f6..2e2230d 100644
--- a/src/modules/knowledge-base/knowledge-base.service.ts
+++ b/src/modules/knowledge-base/knowledge-base.service.ts
@@ -14,8 +14,8 @@ export class KnowledgeBaseService {
     return this.repository.create(userId, dto);
   }
 
-  async findAll(userId: string, query: any) {
-    return this.repository.findAllByUserId(userId);
+  async findAll(userId: string, pagination: { page?: number; limit?: number }) {
+    return this.repository.findAllByUserId(userId, pagination);
   }
 
   async findOne(userId: string, id: string) {
diff --git a/src/modules/learning-session/learning-session.controller.ts b/src/modules/learning-session/learning-session.controller.ts
index 9ce107c..c1a315e 100644
--- a/src/modules/learning-session/learning-session.controller.ts
+++ b/src/modules/learning-session/learning-session.controller.ts
@@ -1,7 +1,8 @@
-import { Controller, Get, Post, Body, Param } from '@nestjs/common';
+import { Controller, Get, Post, Body, Param, Query } from '@nestjs/common';
 import { ApiTags, ApiOperation, ApiResponse } from '@nestjs/swagger';
 import { LearningSessionService } from './learning-session.service';
 import { CurrentUser } from '../../common/decorators/current-user.decorator';
+import { PaginationDto } from '../../common/dto/pagination.dto';
 import type { UserPayload } from '../../common/types';
 
 @ApiTags('learning-session')
@@ -23,7 +24,7 @@ export class LearningSessionController {
 
   @Get()
   @ApiOperation({ summary: '获取学习会话列表' })
-  async findAll(@CurrentUser() user: UserPayload) {
-    return this.service.findByUserId(String(user?.id || 'anonymous'));
+  async findAll(@CurrentUser() user: UserPayload, @Query() pagination: PaginationDto) {
+    return this.service.findByUserId(String(user?.id || 'anonymous'), pagination);
   }
 }
diff --git a/src/modules/learning-session/learning-session.repository.ts b/src/modules/learning-session/learning-session.repository.ts
index 7164de7..142f205 100644
--- a/src/modules/learning-session/learning-session.repository.ts
+++ b/src/modules/learning-session/learning-session.repository.ts
@@ -38,10 +38,14 @@ export class LearningSessionRepository {
     });
   }
 
-  async findByUserId(userId: string) {
+  async findByUserId(userId: string, pagination?: { page?: number; limit?: number }) {
+    const page = pagination?.page ?? 1;
+    const limit = pagination?.limit ?? 20;
     return this.prisma.learningSession.findMany({
       where: { userId },
       orderBy: { startedAt: 'desc' },
+      skip: (page - 1) * limit,
+      take: limit,
     });
   }
 }
diff --git a/src/modules/learning-session/learning-session.service.ts b/src/modules/learning-session/learning-session.service.ts
index 126712a..0cecf12 100644
--- a/src/modules/learning-session/learning-session.service.ts
+++ b/src/modules/learning-session/learning-session.service.ts
@@ -1,5 +1,6 @@
 import { Injectable, NotFoundException } from '@nestjs/common';
 import { LearningSessionRepository } from './learning-session.repository';
+import type { PaginationDto } from '../../common/dto/pagination.dto';
 
 @Injectable()
 export class LearningSessionService {
@@ -15,7 +16,7 @@ export class LearningSessionService {
     return session;
   }
 
-  async findByUserId(userId: string) {
-    return this.repository.findByUserId(userId);
+  async findByUserId(userId: string, pagination: PaginationDto) {
+    return this.repository.findByUserId(userId, pagination);
   }
 }
diff --git a/src/modules/notifications/notifications.controller.ts b/src/modules/notifications/notifications.controller.ts
index fe6a693..7f7540d 100644
--- a/src/modules/notifications/notifications.controller.ts
+++ b/src/modules/notifications/notifications.controller.ts
@@ -1,7 +1,8 @@
-import { Controller, Get, Post, Param, HttpCode, HttpStatus } from '@nestjs/common';
+import { Controller, Get, Post, Param, Query, HttpCode, HttpStatus } from '@nestjs/common';
 import { ApiTags, ApiOperation } from '@nestjs/swagger';
 import { NotificationsService } from './notifications.service';
 import { CurrentUser } from '../../common/decorators/current-user.decorator';
+import { PaginationDto } from '../../common/dto/pagination.dto';
 import type { UserPayload } from '../../common/types';
 
 @ApiTags('notifications')
@@ -11,8 +12,8 @@ export class NotificationsController {
 
   @Get()
   @ApiOperation({ summary: '获取通知列表' })
-  async list(@CurrentUser() user: UserPayload) {
-    return this.service.list(String(user?.id || 'anonymous'));
+  async list(@CurrentUser() user: UserPayload, @Query() pagination: PaginationDto) {
+    return this.service.list(String(user?.id || 'anonymous'), pagination);
   }
 
   @Post(':id/read')
diff --git a/src/modules/notifications/notifications.repository.ts b/src/modules/notifications/notifications.repository.ts
index 4be59cd..06cce57 100644
--- a/src/modules/notifications/notifications.repository.ts
+++ b/src/modules/notifications/notifications.repository.ts
@@ -5,10 +5,14 @@ import { PrismaService } from '../../infrastructure/database/prisma.service';
 export class NotificationsRepository {
   constructor(private readonly prisma: PrismaService) {}
 
-  async findAll(userId: string) {
+  async findAll(userId: string, pagination?: { page?: number; limit?: number }) {
+    const page = pagination?.page ?? 1;
+    const limit = pagination?.limit ?? 20;
     return this.prisma.notification.findMany({
       where: { userId },
       orderBy: { createdAt: 'desc' },
+      skip: (page - 1) * limit,
+      take: limit,
     });
   }
 
diff --git a/src/modules/notifications/notifications.service.ts b/src/modules/notifications/notifications.service.ts
index 06c7321..e55a9f0 100644
--- a/src/modules/notifications/notifications.service.ts
+++ b/src/modules/notifications/notifications.service.ts
@@ -1,5 +1,6 @@
 import { Injectable, NotFoundException, Logger } from '@nestjs/common';
 import { NotificationsRepository } from './notifications.repository';
+import type { PaginationDto } from '../../common/dto/pagination.dto';
 
 @Injectable()
 export class NotificationsService {
@@ -7,8 +8,8 @@ export class NotificationsService {
 
   constructor(private readonly repository: NotificationsRepository) {}
 
-  async list(userId: string) {
-    return this.repository.findAll(userId);
+  async list(userId: string, pagination: PaginationDto) {
+    return this.repository.findAll(userId, pagination);
   }
 
   async markRead(id: string) {
diff --git a/src/modules/users/users.controller.ts b/src/modules/users/users.controller.ts
index 20ea763..a85ba34 100644
--- a/src/modules/users/users.controller.ts
+++ b/src/modules/users/users.controller.ts
@@ -28,4 +28,17 @@ export class UsersController {
   async updatePreferences(@CurrentUser() user: UserPayload, @Body() body: any) {
     return this.usersService.updatePreferences(String(user.id), body);
   }
+
+  @Get('me/profile')
+  @ApiOperation({ summary: '获取用户学习档案' })
+  @ApiResponse({ status: 200, description: '用户学习档案' })
+  async getProfileDetail(@CurrentUser() user: UserPayload) {
+    return this.usersService.getProfileDetail(String(user.id));
+  }
+
+  @Patch('me/profile')
+  @ApiOperation({ summary: '更新用户学习档案' })
+  async updateProfileDetail(@CurrentUser() user: UserPayload, @Body() body: any) {
+    return this.usersService.updateProfileDetail(String(user.id), body);
+  }
 }
diff --git a/src/modules/users/users.repository.ts b/src/modules/users/users.repository.ts
index de2ab62..bbfe6fb 100644
--- a/src/modules/users/users.repository.ts
+++ b/src/modules/users/users.repository.ts
@@ -17,6 +17,8 @@ export class UsersRepository {
         status: true,
         onboardingCompleted: true,
         createdAt: true,
+        profile: true,
+        preferences: true,
       },
     });
 
@@ -24,15 +26,11 @@ export class UsersRepository {
       throw new NotFoundException('用户不存在');
     }
 
+    const { profile, preferences, ...rest } = user;
     return {
-      id: user.id,
-      email: user.email,
-      nickname: user.nickname,
-      avatarUrl: user.avatarUrl,
-      role: user.role,
-      status: user.status,
-      onboardingCompleted: user.onboardingCompleted,
-      createdAt: user.createdAt,
+      ...rest,
+      profile: profile ?? null,
+      preferences: preferences ?? null,
     };
   }
 
@@ -46,6 +44,26 @@ export class UsersRepository {
     });
   }
 
+  async findUserProfile(userId: string) {
+    const profile = await this.prisma.userProfile.findUnique({
+      where: { userId },
+    });
+    return profile ?? null;
+  }
+
+  async upsertUserProfile(userId: string, dto: {
+    learningIdentity?: string;
+    learningDirection?: string;
+    bio?: string;
+    currentGoal?: string;
+  }) {
+    return this.prisma.userProfile.upsert({
+      where: { userId },
+      create: { userId, ...dto },
+      update: dto,
+    });
+  }
+
   async updatePreferences(userId: string, dto: any) {
     return this.prisma.userPreference.upsert({
       where: { userId },
diff --git a/src/modules/users/users.service.ts b/src/modules/users/users.service.ts
index d4a8220..991faa9 100644
--- a/src/modules/users/users.service.ts
+++ b/src/modules/users/users.service.ts
@@ -13,6 +13,14 @@ export class UsersService {
     return this.usersRepository.updateProfile(userId, dto);
   }
 
+  async getProfileDetail(userId: string) {
+    return this.usersRepository.findUserProfile(userId);
+  }
+
+  async updateProfileDetail(userId: string, dto: any) {
+    return this.usersRepository.upsertUserProfile(userId, dto);
+  }
+
   async updatePreferences(userId: string, dto: any) {
     return this.usersRepository.updatePreferences(userId, dto);
   }
diff --git a/src/workers/ai-analysis.worker.ts b/src/workers/ai-analysis.worker.ts
index 367edd0..abbfe0d 100644
--- a/src/workers/ai-analysis.worker.ts
+++ b/src/workers/ai-analysis.worker.ts
@@ -1,5 +1,31 @@
-console.log('[Worker] AI Analysis Worker started');
+import { Processor, WorkerHost } from '@nestjs/bullmq';
+import { Logger } from '@nestjs/common';
+import { Job } from 'bullmq';
+import { QUEUE_AI_ANALYSIS } from '../infrastructure/queue/queue.service';
+import { ActiveRecallAnalysisWorkflow } from '../modules/ai/workflows/active-recall-analysis.workflow';
+import { AiAnalysisRepository } from '../modules/ai-analysis/ai-analysis.repository';
 
-setInterval(() => {
-  console.log('[Worker] AI Analysis Worker is running...');
-}, 60000);
+@Processor(QUEUE_AI_ANALYSIS)
+export class AiAnalysisWorker extends WorkerHost {
+  private readonly logger = new Logger(AiAnalysisWorker.name);
+
+  constructor(
+    private readonly workflow: ActiveRecallAnalysisWorkflow,
+    private readonly repository: AiAnalysisRepository,
+  ) {
+    super();
+  }
+
+  async process(job: Job<{
+    userId: string;
+    questionText: string;
+    knowledgeItemContent: string;
+    userAnswer: string;
+  }>) {
+    this.logger.log(`Processing AI analysis job ${job.id}`);
+    const result = await this.workflow.execute(job.data);
+    await this.repository.createResult(job.data.userId, result);
+    this.logger.log(`AI analysis job ${job.id} completed, score=${result.score}`);
+    return result;
+  }
+}
diff --git a/src/workers/document-import.worker.ts b/src/workers/document-import.worker.ts
index f902f02..fccc010 100644
--- a/src/workers/document-import.worker.ts
+++ b/src/workers/document-import.worker.ts
@@ -1,5 +1,32 @@
-console.log('[Worker] Document Import Worker started');
+import { Processor, WorkerHost } from '@nestjs/bullmq';
+import { Logger } from '@nestjs/common';
+import { Job } from 'bullmq';
+import { QUEUE_DOCUMENT_IMPORT } from '../infrastructure/queue/queue.service';
+import { DocumentImportRepository } from '../modules/document-import/document-import.repository';
 
-setInterval(() => {
-  console.log('[Worker] Document Import Worker is running...');
-}, 60000);
+@Processor(QUEUE_DOCUMENT_IMPORT)
+export class DocumentImportWorker extends WorkerHost {
+  private readonly logger = new Logger(DocumentImportWorker.name);
+
+  constructor(
+    private readonly repository: DocumentImportRepository,
+  ) {
+    super();
+  }
+
+  async process(job: Job<{ importId: string; userId: string }>) {
+    this.logger.log(`Processing document import job ${job.id}, importId=${job.data.importId}`);
+    await this.repository.updateStatus(job.data.importId, 'processing');
+
+    try {
+      // TODO: actual file parsing + AI knowledge generation
+      await new Promise((resolve) => setTimeout(resolve, 1000));
+      await this.repository.updateStatus(job.data.importId, 'completed');
+      this.logger.log(`Document import job ${job.id} completed`);
+    } catch (err: any) {
+      this.logger.error(`Document import job ${job.id} failed: ${err.message}`);
+      await this.repository.updateStatus(job.data.importId, 'failed');
+      throw err;
+    }
+  }
+}
diff --git a/src/workers/notification.worker.ts b/src/workers/notification.worker.ts
index 8cf1450..9b64916 100644
--- a/src/workers/notification.worker.ts
+++ b/src/workers/notification.worker.ts
@@ -1,5 +1,22 @@
-console.log('[Worker] Notification Worker started');
+import { Processor, WorkerHost } from '@nestjs/bullmq';
+import { Logger } from '@nestjs/common';
+import { Job } from 'bullmq';
+import { QUEUE_NOTIFICATION } from '../infrastructure/queue/queue.service';
+import { NotificationsService } from '../modules/notifications/notifications.service';
 
-setInterval(() => {
-  console.log('[Worker] Notification Worker is running...');
-}, 60000);
+@Processor(QUEUE_NOTIFICATION)
+export class NotificationWorker extends WorkerHost {
+  private readonly logger = new Logger(NotificationWorker.name);
+
+  constructor(
+    private readonly notificationsService: NotificationsService,
+  ) {
+    super();
+  }
+
+  async process(job: Job<{ userId: string; type: string; title: string; body: string }>) {
+    this.logger.log(`Processing notification job ${job.id}`);
+    await this.notificationsService.send(job.data);
+    this.logger.log(`Notification job ${job.id} completed`);
+  }
+}