feat(admin): Add user management and upgrade to module permission system

Features - User Management (Phase 4.1):
- Database: Add user_modules table for fine-grained module permissions
- Database: Add 4 user permissions (view/create/edit/delete) to role_permissions
- Backend: UserService (780 lines) - CRUD with tenant isolation
- Backend: UserController + UserRoutes (648 lines) - 13 API endpoints
- Backend: Batch import users from Excel
- Frontend: UserListPage (412 lines) - list/filter/search/pagination
- Frontend: UserFormPage (341 lines) - create/edit with module config
- Frontend: UserDetailPage (393 lines) - details/tenant/module management
- Frontend: 3 modal components (592 lines) - import/assign/configure
- API: GET/POST/PUT/DELETE /api/admin/users/* endpoints

Architecture Upgrade - Module Permission System:
- Backend: Add getUserModules() method in auth.service
- Backend: Login API returns modules array in user object
- Frontend: AuthContext adds hasModule() method
- Frontend: Navigation filters modules based on user.modules
- Frontend: RouteGuard checks requiredModule instead of requiredVersion
- Frontend: Remove deprecated version-based permission system
- UX: Only show accessible modules in navigation (clean UI)
- UX: Smart redirect after login (avoid 403 for regular users)

Fixes:
- Fix UTF-8 encoding corruption in ~100 docs files
- Fix pageSize type conversion in userService (String to Number)
- Fix authUser undefined error in TopNavigation
- Fix login redirect logic with role-based access check
- Update Git commit guidelines v1.2 with UTF-8 safety rules

Database Changes:
- CREATE TABLE user_modules (user_id, tenant_id, module_code, is_enabled)
- ADD UNIQUE CONSTRAINT (user_id, tenant_id, module_code)
- INSERT 4 permissions + role assignments
- UPDATE PUBLIC tenant with 8 module subscriptions

Technical:
- Backend: 5 new files (~2400 lines)
- Frontend: 10 new files (~2500 lines)
- Docs: 1 development record + 2 status updates + 1 guideline update
- Total: ~4900 lines of code

Status: User management 100% complete, module permission system operational

docs/03-业务模块/ASL-AI智能文献/README.md

@@ -1,31 +1,31 @@
 # ASL - AI智能文献
 
-> **妯″潡浠ｅ彿锛?* ASL (AI Smart Literature)  
-> **寮€鍙戠姸鎬侊細** 鈴?涓嬩竴姝ュ紑鍙戯紙Week 2-4锛? 
-> **鍟嗕笟浠峰€硷細** 猸愨瓙猸愨瓙猸?鍙<>嫭绔嬪敭鍗? 
-> **鐙<EFBFBD>珛鎬э細** 猸愨瓙猸愨瓙猸? 
+> **模块代号：** ASL (AI Smart Literature)  
+> **开发状态：** ⏳ 下一步开发（Week 2-4）  
+> **商业价值：** ⭐⭐⭐⭐⭐ 可独立售卖  
+> **独立性：** ⭐⭐⭐⭐⭐  
 > **优先级：** P0
 
 ---
 
 ## 📋 模块概述
 
-AI鏅鸿兘鏂囩尞绛涢€夌郴缁燂紝甯<EFBFBD>姪鐮旂┒鑰呭揩閫熺瓫閫夊拰鍒嗘瀽鏂囩尞銆?
+AI智能文献筛选系统，帮助研究者快速筛选和分析文献。
 
-**鏍稿績浠峰€硷細** 鏍稿績宸<E7B8BE>紓鍖栧姛鑳斤紝鍙<E7B49D>嫭绔嬪敭鍗?
+**核心价值：** 核心差异化功能，可独立售卖
 
 ---
 
-## 馃幆 鏍稿績鍔熻兘锛?涓<>ā鍧楋級
+## 🎯 核心功能（6个模块）
 
-1. 鉁?**鏍囬<E98F8D>鎽樿<E98EBD>鍒濈瓫** - 鍙屾ā鍨婣I鍒ゆ柇
-2. 鉁?**鍏ㄦ枃澶嶇瓫** - PDF鍏ㄦ枃鍒嗘瀽
-3. 鈴?**鍏ㄦ枃瑙ｆ瀽涓庢暟鎹<E69A9F>彁鍙?*
-4. 鈴?**鏁版嵁鍒嗘瀽涓庢姤鍛婄敓鎴?*
-5. 鈴?**绯荤粺璇勪环涓嶮eta鍒嗘瀽**
-6. 鈴?**鏂囩尞绠＄悊**
+1. ✅ **标题摘要初筛** - 双模型AI判断
+2. ✅ **全文复筛** - PDF全文分析
+3. ⏳ **全文解析与数据提取**
+4. ⏳ **数据分析与报告生成**
+5. ⏳ **系统评价与Meta分析**
+6. ⏳ **文献管理**
 
-**鏈<EFBFBD>懆閲嶇偣锛?* 鏍囬<E98F8D>鎽樿<E98EBD>鍒濈瓫 + 鍏ㄦ枃澶嶇瓫
+**本周重点：** 标题摘要初筛 + 全文复筛
 
 ---
 
@@ -33,17 +33,17 @@ AI智能文献筛选系统，帮助研究者快速筛选和分析文献
 
 ```
 ASL-AI智能文献/
-  鈹溾攢鈹€ [AI瀵规帴] ASL蹇<EFBFBD>€熶笂涓嬫枃.md         # 鈴?寰呭垱寤?
+  ├── [AI对接] ASL快速上下文.md         # ⏳ 待创建
   ├── 00-项目概述/
-  鈹?  鈹溾攢鈹€ 01-浜у搧闇€姹傛枃妗?PRD).md       # 鈴?寰呭悎骞讹紙3涓狿RD锛?
-  鈹?  鈹斺攢鈹€ ...
+  │   ├── 01-产品需求文档(PRD).md       # ⏳ 待合并（3个PRD）
+  │   └── ...
   ├── 01-设计文档/
-  鈹?  鈹溾攢鈹€ 02-鏁版嵁搴撹<E690B4>璁?md
-  鈹?  鈹溾攢鈹€ 03-API璁捐<EFBFBD>.md
-  鈹?  鈹斺攢鈹€ 07-UI璁捐<EFBFBD>/
-  鈹?      鈹溾攢鈹€ 鏍囬<E98F8D>鎽樿<E98EBD>鍒濈瓫鍘熷瀷.html
-  鈹?      鈹斺攢鈹€ 鍏ㄦ枃澶嶇瓫鍘熷瀷.html
-  鈹斺攢鈹€ README.md                          # 鉁?褰撳墠鏂囨。
+  │   ├── 02-数据库设计.md
+  │   ├── 03-API设计.md
+  │   └── 07-UI设计/
+  │       ├── 标题摘要初筛原型.html
+  │       └── 全文复筛原型.html
+  └── README.md                          # ✅ 当前文档
 ```
 
 ---
@@ -52,15 +52,15 @@ ASL-AI智能文献/
 
 - **LLM网关** - 双模型AI判断
 - **文档处理引擎** - PDF全文提取
-- **RAG寮曟搸** - 鏂囩尞鍐呭<EFBFBD>妫€绱?
+- **RAG引擎** - 文献内容检索
 
 ---
 
 ## 🎯 商业模式
 
-**鐩<EFBFBD>爣瀹㈡埛锛?* 绯荤粺璇勪环鐮旂┒鑰呫€佸惊璇佸尰瀛︿腑蹇? 
-**鍞<EFBFBD>崠鏂瑰紡锛?* 鐙<>珛浜у搧  
-**瀹氫环绛栫暐锛?* 鎸夐」鐩<E3808D>暟鎴栨寜鏈堣<E98F88>闃?
+**目标客户：** 系统评价研究者、循证医学中心  
+**售卖方式：** 独立产品  
+**定价策略：** 按项目数或按月订阅
 
 ---