```

refactor: 移除审批和回写功能模块

移除了整个审批(approvals)和官方回写(writebacks)功能模块，
包括相关模型、路由、服务和配置项。更新了数据库迁移文件，
删除了相关的审批请求表和官方回写运行表。同时从API路由器中
移除了相应的路由，并调整了安全常量和字段验证器以匹配变更。
```

scripts/verify_smoke.py

@@ -11,7 +11,6 @@ db.close()
 
 os.environ["DATABASE_URL"] = "sqlite:///" + db.name.replace("\\", "/")
 os.environ["API_KEY"] = "test-key"
-os.environ["APPROVAL_API_KEY"] = "approval-key"
 os.environ["LEGACY_ALLOWED_QUERIES"] = "{}"
 os.environ["LEGACY_DATABASE_URL"] = ""
 os.environ["LEGACY_PROJECT_QUERY"] = ""
@@ -21,9 +20,11 @@ os.environ["SCHEDULER_ENABLED"] = "false"
 from fastapi.testclient import TestClient
 
 from app.core.constants import HttpHeader
-from app.core.database import Base, engine
+from app.core.database import Base, SessionLocal, engine
 from app.main import app
 from app.modules.business.constants import BusinessField, StatusValue
+from app.modules.business.registry import get_domain_model
+from app.modules.business.service import _model_payload, serialize_model
 
 
 def request(method: str, url: str, **kwargs):
@@ -35,26 +36,17 @@ def request(method: str, url: str, **kwargs):
     return response
 
 
-def approve_change(domain: str, action: str, payload: dict, record_id: str | None = None) -> str:
-    approval_payload: dict[str, object] = {
-        "domain": domain,
-        "action": action,
-        "reason": "smoke verification",
-        "payload": payload,
-    }
-    if record_id is not None:
-        approval_payload["record_id"] = record_id
-    ticket = request("post", "/api/v1/approvals", json=approval_payload).json()["ticket_id"]
-    request(
-        "post",
-        f"/api/v1/approvals/{ticket}/approve",
-        headers={
-            HttpHeader.X_API_KEY: "test-key",
-            HttpHeader.X_APPROVAL_API_KEY: "approval-key",
-        },
-        json={"comment": "smoke approved"},
-    )
-    return ticket
+def seed_business_record(domain: str, payload: dict) -> dict:
+    db_session = SessionLocal()
+    try:
+        model = get_domain_model(domain)
+        record = model(**_model_payload(domain, model, payload))
+        db_session.add(record)
+        db_session.commit()
+        db_session.refresh(record)
+        return serialize_model(record)
+    finally:
+        db_session.close()
 
 
 try:
@@ -68,17 +60,8 @@ try:
         "budget_amount": 1000,
         "actual_amount": 200,
     }
-    approval_ticket_id = approve_change("projects", "create:projects", project_payload)
-    project = request(
-        "post",
-        "/api/v1/business/projects",
-        json={
-            "actor": "smoke",
-            "approval_ticket_id": approval_ticket_id,
-            "data": project_payload,
-        },
-    ).json()
-    print("project:", project["data"]["code"])
+    project = seed_business_record("projects", project_payload)
+    print("project:", project["code"])
 
     report = request("get", "/api/v1/reports/daily-brief").json()
     print("report:", report["title"])