feat: add batch AI re-organize for transfer history and search result recommendation

- Implement batch AI re-organize endpoint for transfer history with progress tracking
- Add batch_manual_transfer_redo system task template and prompt generation
- Refactor agent_manager to support generic background prompt execution
- Add AIRecommendChain for search result recommendation using agent background prompt
- Update search endpoints to use new AIRecommendChain and remove legacy code
- Enhance test cases for batch manual transfer redo
- Minor code cleanup and style fixes

app/agent/tools/impl/query_schedulers.py

@@ -7,7 +7,6 @@ from pydantic import BaseModel, Field
 
 from app.agent.tools.base import MoviePilotTool
 from app.log import logger
-from app.scheduler import Scheduler
 
 
 class QuerySchedulersInput(BaseModel):
@@ -27,6 +26,8 @@ class QuerySchedulersTool(MoviePilotTool):
     async def run(self, **kwargs) -> str:
         logger.info(f"执行工具: {self.name}")
         try:
+            from app.scheduler import Scheduler
+
             scheduler = Scheduler()
             schedulers = scheduler.list()
             if schedulers: