```

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/reports/routes.py

@@ -11,6 +11,7 @@ from app.modules.reports.schemas import (
     ReportResponse,
     WorkReportGenerateRequest,
 )
+from app.modules.reports.constants import ReportPushKey
 from app.modules.reports.service import ReportService
 
 router = APIRouter(dependencies=[Depends(require_api_key)])
@@ -64,7 +65,7 @@ def list_push_runs(
     limit: int = 100,
     db: Session = Depends(get_db),
 ) -> dict:
-    return {"items": ReportService(db).list_push_runs(status_filter=status, limit=limit)}
+    return {ReportPushKey.ITEMS: ReportService(db).list_push_runs(status_filter=status, limit=limit)}
 
 
 @router.get("/push-runs/{code}")