```

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/risk/routes.py

@@ -144,6 +144,7 @@ def close_risk_event(
         closed_reason=payload.closed_reason,
         review_summary=payload.review_summary,
         actor=principal.actor,
+        approval_ticket_id=payload.approval_ticket_id,
     )
 
 
@@ -158,6 +159,7 @@ def reopen_risk_event(
         event_id,
         comment=payload.comment,
         actor=principal.actor,
+        approval_ticket_id=payload.approval_ticket_id,
     )