feat: add new tools for download management and enhance query capabilities

- Introduced DeleteDownloadTool, QueryDirectoriesTool, ListDirectoryTool, QueryTransferHistoryTool, and TransferFileTool to the toolset for improved download management.
- Updated __all__ exports in init.py and factory.py to include the new tools.
- Enhanced QueryDownloadsTool to support querying downloads by hash and title, providing more flexible search options and detailed results.

app/agent/tools/impl/delete_download.py

@@ -0,0 +1,62 @@
+"""删除下载任务工具"""
+
+from typing import Optional, Type
+
+from pydantic import BaseModel, Field
+
+from app.agent.tools.base import MoviePilotTool
+from app.chain.download import DownloadChain
+from app.log import logger
+
+
+class DeleteDownloadInput(BaseModel):
+    """删除下载任务工具的输入参数模型"""
+    explanation: str = Field(..., description="Clear explanation of why this tool is being used in the current context")
+    task_identifier: str = Field(..., description="Task identifier: can be task hash (unique identifier) or task title/name")
+    downloader: Optional[str] = Field(None, description="Name of specific downloader (optional, if not provided will search all downloaders)")
+    delete_files: Optional[bool] = Field(False, description="Whether to delete downloaded files along with the task (default: False, only removes the task from downloader)")
+
+
+class DeleteDownloadTool(MoviePilotTool):
+    name: str = "delete_download"
+    description: str = "Delete a download task from the downloader. Can delete by task hash (unique identifier) or task title/name. Optionally specify the downloader name and whether to delete downloaded files."
+    args_schema: Type[BaseModel] = DeleteDownloadInput
+
+    async def run(self, task_identifier: str, downloader: Optional[str] = None,
+                  delete_files: Optional[bool] = False, **kwargs) -> str:
+        logger.info(f"执行工具: {self.name}, 参数: task_identifier={task_identifier}, downloader={downloader}, delete_files={delete_files}")
+
+        try:
+            download_chain = DownloadChain()
+            
+            # 如果task_identifier看起来像hash（通常是40个字符的十六进制字符串）
+            task_hash = None
+            if len(task_identifier) == 40 and all(c in '0123456789abcdefABCDEF' for c in task_identifier):
+                # 直接使用hash
+                task_hash = task_identifier
+            else:
+                # 通过标题查找任务
+                downloads = download_chain.downloading(name=downloader)
+                for dl in downloads:
+                    # 检查标题或名称是否匹配
+                    if (task_identifier.lower() in (dl.title or "").lower()) or \
+                       (task_identifier.lower() in (dl.name or "").lower()):
+                        task_hash = dl.hash
+                        break
+                
+                if not task_hash:
+                    return f"未找到匹配的下载任务：{task_identifier}，请使用 query_downloads 工具查询可用的下载任务"
+            
+            # 删除下载任务
+            # remove_torrents 支持 delete_file 参数，可以控制是否删除文件
+            result = download_chain.remove_torrents(hashs=[task_hash], downloader=downloader, delete_file=delete_files)
+            
+            if result:
+                files_info = "（包含文件）" if delete_files else "（不包含文件）"
+                return f"成功删除下载任务：{task_identifier} {files_info}"
+            else:
+                return f"删除下载任务失败：{task_identifier}，请检查任务是否存在或下载器是否可用"
+        except Exception as e:
+            logger.error(f"删除下载任务失败: {e}", exc_info=True)
+            return f"删除下载任务时发生错误: {str(e)}"
+