feat(aia): Integrate PromptService for 10 AI agents

Features:
- Migrate 10 agent prompts from hardcoded to database
- Add grayscale preview support (DRAFT/ACTIVE distribution)
- Implement 3-tier fallback (DB -> Cache -> Hardcoded)
- Add version management and rollback capability

Files changed:
- backend/scripts/migrate-aia-prompts.ts (new migration script)
- backend/src/common/prompt/prompt.fallbacks.ts (add AIA fallbacks)
- backend/src/modules/aia/services/agentService.ts (integrate PromptService)
- backend/src/modules/aia/services/conversationService.ts (pass userId)
- backend/src/modules/aia/types/index.ts (fix AgentStage type)

Documentation:
- docs/03-业务模块/AIA-AI智能问答/06-开发记录/2026-01-18-Prompt管理系统集成.md
- docs/02-通用能力层/00-通用能力层清单.md (add FileCard, Prompt management)
- docs/00-系统总体设计/00-系统当前状态与开发指南.md (update to v3.6)

Prompt codes:
- AIA_SCIENTIFIC_QUESTION, AIA_PICO_ANALYSIS, AIA_TOPIC_EVALUATION
- AIA_OUTCOME_DESIGN, AIA_CRF_DESIGN, AIA_SAMPLE_SIZE
- AIA_PROTOCOL_WRITING, AIA_METHODOLOGY_REVIEW
- AIA_PAPER_POLISH, AIA_PAPER_TRANSLATE

Tested: Migration script executed, all 10 prompts inserted successfully

docs/05-部署文档/02-SAE部署完全指南(产品经理版).md

@@ -890,6 +890,9 @@ ACR镜像仓库：
 
 
 
+
+
+
 
 
 

docs/05-部署文档/07-前端Nginx-SAE部署操作手册.md

@@ -1377,6 +1377,9 @@ SAE应用配置:
 
 
 
+
+
+
 
 
 

docs/05-部署文档/08-PostgreSQL数据库部署操作手册.md

@@ -1193,6 +1193,9 @@ docker exec -e PGPASSWORD="密码" ai-clinical-postgres psql -h RDS地址 -U air
 
 
 
+
+
+
 
 
 

docs/05-部署文档/10-Node.js后端-Docker镜像构建手册.md

@@ -604,6 +604,9 @@ scripts/*.ts
 
 
 
+
+
+
 
 
 

docs/05-部署文档/11-Node.js后端-SAE部署配置清单.md

@@ -292,6 +292,9 @@ Node.js后端部署成功后：
 
 
 
+
+
+
 
 
 

docs/05-部署文档/12-Node.js后端-SAE部署操作手册.md

@@ -515,6 +515,9 @@ Node.js后端 (SAE)  ← http://172.17.173.88:3001
 
 
 
+
+
+
 
 
 

docs/05-部署文档/13-Node.js后端-镜像修复记录.md

@@ -230,6 +230,9 @@ curl http://localhost:3001/health
 
 
 
+
+
+
 
 
 

docs/05-部署文档/14-Node.js后端-pino-pretty问题修复.md

@@ -268,6 +268,9 @@ npm run dev
 
 
 
+
+
+
 
 
 

docs/05-部署文档/16-前端Nginx-部署成功总结.md

@@ -492,6 +492,9 @@ pgm-2zex1m2y3r23hdn5.pg.rds.aliyuncs.com:5432
 
 
 
+
+
+
 
 
 

docs/05-部署文档/17-完整部署实战手册-2025版.md

@@ -1820,6 +1820,9 @@ curl http://8.140.53.236/
 
 
 
+
+
+
 
 
 

docs/05-部署文档/18-部署文档使用指南.md

@@ -368,6 +368,9 @@ crpi-cd5ij4pjt65mweeo.cn-beijing.personal.cr.aliyuncs.com/ai-clinical/backend-se
 
 
 
+
+
+
 
 
 

docs/05-部署文档/19-日常更新快速操作手册.md

@@ -690,6 +690,9 @@ docker login --username=gofeng117@163.com \
 
 
 
+
+
+
 
 
 

docs/05-部署文档/文档修正报告-20251214.md

@@ -501,6 +501,9 @@ NAT网关成本¥100/月，对初创团队是一笔开销
 
 
 
+
+
+