```

feat: 添加公司AI管理平台基础架构

添加了完整的FastAPI后端项目结构，包括：
- 环境配置文件(.env.example)和项目说明文档(README.md、AGENTS.md)
- Dockerfile用于容器化部署
- 核心基础设施：配置管理、数据库连接、调度器、安全认证
- 模块化设计：AI代理、审批流程、审计日志、业务台账等功能模块
- 支持多数据库连接(主库和遗留系统只读库)
- AI适配器支持OpenClaw、Hermes、OpenAI兼容接口
- 飞书集成、报表生成、风险监控等企业级功能
- 完整的依赖管理和测试指南
```

app/modules/approvals/routes.py

@@ -0,0 +1,38 @@
+from fastapi import APIRouter, Depends
+from sqlalchemy.orm import Session
+
+from app.core.database import get_db
+from app.core.security import require_api_key
+from app.modules.approvals.schemas import ApprovalCreate, ApprovalDecision, ApprovalRead
+from app.modules.approvals.service import ApprovalService
+
+router = APIRouter(dependencies=[Depends(require_api_key)])
+
+
+@router.post("", response_model=ApprovalRead)
+def create_approval(payload: ApprovalCreate, db: Session = Depends(get_db)):
+    return ApprovalService(db).create(payload)
+
+
+@router.get("", response_model=list[ApprovalRead])
+def list_approvals(
+    status: str | None = None,
+    limit: int = 100,
+    db: Session = Depends(get_db),
+):
+    return ApprovalService(db).list(status_filter=status, limit=limit)
+
+
+@router.get("/{ticket_id}", response_model=ApprovalRead)
+def get_approval(ticket_id: str, db: Session = Depends(get_db)):
+    return ApprovalService(db).get_by_ticket(ticket_id)
+
+
+@router.post("/{ticket_id}/approve", response_model=ApprovalRead)
+def approve(ticket_id: str, payload: ApprovalDecision, db: Session = Depends(get_db)):
+    return ApprovalService(db).decide(ticket_id, payload.approver, True, payload.comment)
+
+
+@router.post("/{ticket_id}/reject", response_model=ApprovalRead)
+def reject(ticket_id: str, payload: ApprovalDecision, db: Session = Depends(get_db)):
+    return ApprovalService(db).decide(ticket_id, payload.approver, False, payload.comment)