```

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/schemas.py

@@ -0,0 +1,37 @@
+from datetime import datetime
+from typing import Any
+
+from pydantic import BaseModel, ConfigDict, Field
+
+
+class ApprovalCreate(BaseModel):
+    domain: str
+    record_id: str | None = None
+    action: str
+    applicant: str = "api"
+    reason: str | None = None
+    payload: dict[str, Any] = Field(default_factory=dict)
+
+
+class ApprovalDecision(BaseModel):
+    approver: str
+    comment: str | None = None
+
+
+class ApprovalRead(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+
+    id: int
+    ticket_id: str
+    domain: str
+    record_id: str | None
+    action: str
+    applicant: str
+    approver: str | None
+    status: str
+    reason: str | None
+    payload: str | None
+    decision_comment: str | None
+    created_at: datetime
+    updated_at: datetime
+    decided_at: datetime | None