docs(platform): Add database documentation system and restructure deployment docs

Completed:
- Add 6 core database documents (docs/01-平台基础层/07-数据库/)
  Architecture overview, migration history, environment comparison,
  tech debt tracking, seed data management, PostgreSQL extensions
- Restructure deployment docs: archive 20 legacy files to _archive-2025/
- Create unified daily operations manual (01-日常更新操作手册.md)
- Add pending deployment change tracker (03-待部署变更清单.md)
- Update database development standard to v3.0 (three iron rules)
- Fix Prisma schema type drift: align @db.* annotations with actual DB
  IIT: UUID/Timestamptz(6), SSA: Timestamp(6)/VarChar(20/50/100)
- Add migration: 20260227_align_schema_with_db_types (idempotent ALTER)
- Add Cursor Rule for auto-reminding deployment change documentation
- Update system status guide v6.4 with deployment and DB doc references
- Add architecture consultation docs (Prisma guide, SAE deployment guide)

Technical details:
- Manual migration due to shadow DB limitation (TD-001 in tech debt)
- Deployment docs reduced from 20+ scattered files to 3 core documents
- Cursor Rule triggers on schema.prisma, package.json, Dockerfile changes

Made-with: Cursor

backend/Dockerfile

@@ -28,6 +28,10 @@ RUN npx prisma generate
 # 5. 复制本地已编译好的 dist 文件夹（跳过TypeScript编译）
 COPY dist ./dist
 
+# 5a. tsc 不会复制 .json 文件，手动补充 src 中的 JSON 配置到 dist
+COPY src/modules/ssa/config/*.json ./dist/modules/ssa/config/
+COPY src/modules/asl/fulltext-screening/prompts/*.json ./dist/modules/asl/fulltext-screening/prompts/
+
 # 6. 复制配置文件（agents.yaml等）
 COPY config ./config