```

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/feishu/service.py

@@ -14,6 +14,9 @@ from app.modules.feishu.constants import (
     FEISHU_EMPTY_CARD_TEXT,
     FEISHU_INVALID_TOKEN,
     FEISHU_VERIFICATION_TOKEN_REQUIRED,
+    FeishuApprovalAction,
+    FeishuApprovalValueKey,
+    FeishuCardKey,
     FeishuPayloadKey,
     FeishuReceiveIdType,
 )
@@ -119,16 +122,19 @@ class FeishuService:
         card = FeishuService.build_basic_card(title, lines)
         card[FeishuPayloadKey.ELEMENTS].append(
             {
-                FeishuPayloadKey.TAG: "action",
-                "actions": [
+                FeishuPayloadKey.TAG: FeishuApprovalValueKey.ACTION,
+                FeishuCardKey.ACTIONS: [
                     {
                         FeishuPayloadKey.TAG: "button",
                         FeishuPayloadKey.TEXT: {
                             FeishuPayloadKey.TAG: FeishuPayloadKey.PLAIN_TEXT,
                             FeishuPayloadKey.CONTENT: "批准",
                         },
-                        "type": "primary",
-                        "value": {"ticket_id": ticket_id, "decision": "approve"},
+                        FeishuCardKey.BUTTON_TYPE: "primary",
+                        FeishuCardKey.VALUE: {
+                            FeishuApprovalValueKey.TICKET_ID: ticket_id,
+                            FeishuApprovalValueKey.DECISION: FeishuApprovalAction.APPROVE,
+                        },
                     },
                     {
                         FeishuPayloadKey.TAG: "button",
@@ -136,8 +142,11 @@ class FeishuService:
                             FeishuPayloadKey.TAG: FeishuPayloadKey.PLAIN_TEXT,
                             FeishuPayloadKey.CONTENT: "拒绝",
                         },
-                        "type": "danger",
-                        "value": {"ticket_id": ticket_id, "decision": "reject"},
+                        FeishuCardKey.BUTTON_TYPE: "danger",
+                        FeishuCardKey.VALUE: {
+                            FeishuApprovalValueKey.TICKET_ID: ticket_id,
+                            FeishuApprovalValueKey.DECISION: FeishuApprovalAction.REJECT,
+                        },
                     },
                 ],
             }