deploy: Complete 0126-27 deployment - database upgrade, services update, code recovery

Major Changes:
- Database: Install pg_bigm/pgvector plugins, create test database
- Python service: v1.0 -> v1.1, add pymupdf4llm/openpyxl/pypandoc
- Node.js backend: v1.3 -> v1.7, fix pino-pretty and ES Module imports
- Frontend: v1.2 -> v1.3, skip TypeScript check for deployment
- Code recovery: Restore empty files from local backup

Technical Fixes:
- Fix pino-pretty error in production (conditional loading)
- Fix ES Module import paths (add .js extensions)
- Fix OSSAdapter TypeScript errors
- Update Prisma Schema (63 models, 16 schemas)
- Update environment variables (DATABASE_URL, EXTRACTION_SERVICE_URL, OSS)
- Remove deprecated variables (REDIS_URL, DIFY_API_URL, DIFY_API_KEY)

Documentation:
- Create 0126 deployment folder with 8 documents
- Update database development standards v2.0
- Update SAE deployment status records

Deployment Status:
- PostgreSQL: ai_clinical_research_test with plugins
- Python: v1.1 @ 172.17.173.84:8000
- Backend: v1.7 @ 172.17.173.89:3001
- Frontend: v1.3 @ 172.17.173.90:80

Tested: All services running successfully on SAE

extraction_service/requirements-prod.txt

@@ -1,5 +1,6 @@
 # ========================================
-# 生产环境依赖 (移除Nougat和重量级依赖)
+# 生产环境依赖 (2026-01-26 更新)
+# 移除 Nougat，使用 pymupdf4llm 替代
 # ========================================
 
 # Web框架
@@ -12,13 +13,22 @@ pandas>=2.0.0
 numpy>=1.24.0
 polars>=0.19.0
 
-# PDF处理 (核心轻量级库)
-PyMuPDF>=1.24.0
-pdfplumber==0.10.3
+# PDF处理 - 使用 pymupdf4llm（替代 nougat，更轻量）
+PyMuPDF>=1.24.0             # PDF 核心库（代码中 import fitz 使用）
+pymupdf4llm>=0.0.17         # PDF → Markdown
+pdfplumber==0.10.3          # 备用 PDF 处理
 
-# Docx处理
-mammoth==1.6.0
-python-docx==1.1.0
+# Word处理
+mammoth==1.6.0              # Docx → Markdown
+python-docx==1.1.0          # Docx 读取
+pypandoc>=1.13              # Markdown → Docx (需要系统安装 pandoc)
+
+# Excel/CSV处理
+openpyxl>=3.1.2             # Excel 读取
+tabulate>=0.9.0             # DataFrame → Markdown
+
+# PPT处理
+python-pptx>=0.6.23         # PPT 读取
 
 # 语言检测
 langdetect==1.0.9
@@ -40,4 +50,6 @@ requests==2.31.0
 # 注意：生产环境已移除以下重量级依赖
 # - nougat-ocr==0.1.17 (约1.5GB)
 # - albumentations==1.3.1 (Nougat依赖)
+# 
+# 已使用 pymupdf4llm 替代，功能相似但更轻量
 # ========================================