```

feat: 添加数据库迁移脚本并更新Dockerfile配置

- 在Dockerfile中添加alembic配置文件和目录的复制指令
- 更新alembic/env.py注册新的模块模型：events、workflows、writebacks
- 生成完整的初始数据库schema迁移脚本，包含以下表：
  - approval_requests, attendance_records, audit_logs, domain_events
  - expenses, feishu_event_receipts, fund_accounts, legacy_sync_runs
  - official_writeback_runs, performance_metrics, policies, procurements
  - projects, report_push_runs, risk_event_actions, risk_events
  - standards, suppliers, work_reports, work_tasks, workflow_actions
  - workflow_instances等21个数据表结构定义
- 在API路由器中添加新模块的路由：events、workflows、writebacks、observability
```

app/modules/business/schemas.py

@@ -10,7 +10,7 @@ class DomainRecordCreate(BaseModel):
     actor: str = ActorValue.API
     approval_ticket_id: str | None = Field(
         default=None,
-        description="Required by policy for high-risk creates such as funds or performance.",
+        description="Required by policy for business record creates.",
     )
 
 
@@ -19,7 +19,7 @@ class DomainRecordUpdate(BaseModel):
     actor: str = ActorValue.API
     approval_ticket_id: str | None = Field(
         default=None,
-        description="Required by policy for high-risk updates such as funds or performance.",
+        description="Required by policy for business record updates.",
     )