feat: 报销审批流重构与管家计划全链路贯通

- 重构报销状态注册表、审批流路由与平台风险标记
- 完善管家意图规划器与模型计划构建器全链路
- 新增 OCR Worker 脚本、数据库会话管理与通知状态
- 优化文档中心、日志视图、预算中心与员工管理交互
- 增强工作台摘要、图标资源与全局主题样式
- 补充审批路由、状态注册、OCR 服务与管家规划器测试覆盖

server/src/app/main.py

@@ -25,6 +25,23 @@ from app.services.knowledge_rag import shutdown_knowledge_rag_runtime
 from app.services.knowledge_scheduler import knowledge_index_scheduler
 
 
+def _effective_server_workers(settings: object) -> int:
+    server_workers = getattr(settings, "server_workers", None)
+    web_concurrency = getattr(settings, "web_concurrency", None)
+    workers = web_concurrency if int(server_workers or 1) <= 1 and web_concurrency else server_workers
+    try:
+        return max(1, int(workers or 1))
+    except (TypeError, ValueError):
+        return 1
+
+
+def _should_start_background_schedulers(settings: object) -> bool:
+    if not bool(getattr(settings, "background_schedulers_enabled", True)):
+        return False
+
+    return _effective_server_workers(settings) <= 1
+
+
 @asynccontextmanager
 async def lifespan(_: FastAPI) -> AsyncIterator[None]:
     settings = get_settings()
@@ -34,11 +51,19 @@ async def lifespan(_: FastAPI) -> AsyncIterator[None]:
     prepare_agent_foundation()
     prepare_knowledge_library()
     sync_repository_hermes_skills()
-    knowledge_index_scheduler.start()
-    finance_dashboard_scheduler.start()
-    employee_profile_scheduler.start()
-    digital_employee_reminder_scheduler.start()
-    finance_report_scheduler.start()
+    schedulers_started = _should_start_background_schedulers(settings)
+    if schedulers_started:
+        knowledge_index_scheduler.start()
+        finance_dashboard_scheduler.start()
+        employee_profile_scheduler.start()
+        digital_employee_reminder_scheduler.start()
+        finance_report_scheduler.start()
+    else:
+        logger.warning(
+            "Background schedulers skipped - workers=%s enabled=%s",
+            _effective_server_workers(settings),
+            settings.background_schedulers_enabled,
+        )
     logger.info(
         "Server ready - host=%s port=%s prefix=%s",
         settings.app_host,
@@ -46,11 +71,12 @@ async def lifespan(_: FastAPI) -> AsyncIterator[None]:
         settings.api_v1_prefix,
     )
     yield
-    finance_report_scheduler.shutdown()
-    digital_employee_reminder_scheduler.shutdown()
-    employee_profile_scheduler.shutdown()
-    finance_dashboard_scheduler.shutdown()
-    knowledge_index_scheduler.shutdown()
+    if schedulers_started:
+        finance_report_scheduler.shutdown()
+        digital_employee_reminder_scheduler.shutdown()
+        employee_profile_scheduler.shutdown()
+        finance_dashboard_scheduler.shutdown()
+        knowledge_index_scheduler.shutdown()
     knowledge_index_task_manager.shutdown()
     shutdown_knowledge_rag_runtime()