feat(deepdata): 引入修改密码、文件预览组件与清洗算子增强，deepflow 改名为 deep-flow

本次同步 09-12 至 09-28 的代码变更，主要内容：

新增功能
- 修改密码：后端新增 ChangePasswordRequest DTO 与UserController/UserService
  对应接口，前端新增 ChangePasswordDialog 并在 Header 接入入口
- 文件预览组件重构：file-preview 目录拆分出 VideoPreview（支持 blobUrl 直传）、
  ImagePreview、AudioPreview，index.tsx 统一调度各类型预览器
- 新增 my_ops 算子模块：markitdown_parser、mineru_pdf_parser、text_quality_evaluator
- 新增 tools/minio-file-server MinIO 文件服务

功能增强
- 数据清洗：cleaning_task_service/scheduler/routes 重构，
  data_juicer_executor 与 wrapper 增强，OperatorTable/LogsTable/TaskDetail 同步调整
- 数据标注：annotation sync.py、project.py 接口与schema 更新
- 数据采集、算子市场、首页与菜单路由相关页面调整
- DataJuicer 算子接入（useOperatorOperations、dj_ops_schema）

结构调整
- deepflow/ 更名为 deep-flow/（419 个文件重命名）
- 新增 helm 部署编排、GitHub Actions 之外的自建镜像构建脚本

未纳入本次提交
- scripts-backup/、runtime/python-executor-backup/、components_backup/（备份目录）
- *.backup*、__pycache__ 产物
- zh_core_web_sm-3.8.0-py3-none-any.whl（46MB 构建产物）
- DataX/（内嵌独立仓库，远程亦未收录其源码）

deep-flow/server.py

@@ -0,0 +1,113 @@
+# Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
+# SPDX-License-Identifier: MIT
+
+"""
+Server script for running the DeepFlow API.
+"""
+
+import argparse
+import asyncio
+import logging
+import os
+import signal
+import sys
+
+import uvicorn
+
+file_handler = logging.FileHandler("/var/log/deep-flow/backend.log")
+file_handler.setLevel(logging.INFO)
+
+console_handler = logging.StreamHandler(sys.stdout)
+console_handler.setLevel(logging.WARNING)
+
+# Configure logging
+logging.basicConfig(
+    level=logging.INFO,
+    format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
+    handlers=[
+        file_handler,  # 保存到指定文件
+        console_handler  # 输出到控制台
+    ]
+)
+
+logger = logging.getLogger(__name__)
+
+# To ensure compatibility with Windows event loop issues when using Uvicorn and Asyncio Checkpointer,
+# This is necessary because some libraries expect a selector-based event loop.
+# This is a workaround for issues with Uvicorn and Watchdog on Windows.
+# See:
+# Since Python 3.8 the default on Windows is the Proactor event loop,
+# which lacks add_reader/add_writer and can break libraries that expect selector-based I/O (e.g., some Uvicorn/Watchdog/stdio integrations).
+# For compatibility, this forces the selector loop.
+if os.name == "nt":
+    logger.info("Setting Windows event loop policy for asyncio")
+    asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
+
+
+def handle_shutdown(signum, frame):
+    """Handle graceful shutdown on SIGTERM/SIGINT"""
+    logger.info("Received shutdown signal. Starting graceful shutdown...")
+    sys.exit(0)
+
+
+# Register signal handlers
+signal.signal(signal.SIGTERM, handle_shutdown)
+signal.signal(signal.SIGINT, handle_shutdown)
+
+if __name__ == "__main__":
+    # Parse command line arguments
+    parser = argparse.ArgumentParser(description="Run the DeepFlow API server")
+    parser.add_argument(
+        "--reload",
+        action="store_true",
+        help="Enable auto-reload (default: True except on Windows)",
+    )
+    parser.add_argument(
+        "--host",
+        type=str,
+        default="localhost",
+        help="Host to bind the server to (default: localhost)",
+    )
+    parser.add_argument(
+        "--port",
+        type=int,
+        default=8000,
+        help="Port to bind the server to (default: 8000)",
+    )
+    parser.add_argument(
+        "--log-level",
+        type=str,
+        default="info",
+        choices=["debug", "info", "warning", "error", "critical"],
+        help="Log level (default: info)",
+    )
+
+    args = parser.parse_args()
+
+    # Determine reload setting
+    reload = False
+    if args.reload:
+        reload = True
+
+    try:
+        logger.info(f"Starting DeepFlow API server on {args.host}:{args.port}")
+        logger.info(f"Log level: {args.log_level.upper()}")
+
+        # Set the appropriate logging level for the src package if debug is enabled
+        if args.log_level.lower() == "debug":
+            logging.getLogger("src").setLevel(logging.DEBUG)
+            logging.getLogger("langchain").setLevel(logging.DEBUG)
+            logging.getLogger("langgraph").setLevel(logging.DEBUG)
+            logger.info(
+                "DEBUG logging enabled for src, langchain, and langgraph packages - detailed diagnostic information will be logged")
+
+        uvicorn.run(
+            "src.server:app",
+            host=args.host,
+            port=args.port,
+            reload=reload,
+            log_level=args.log_level,
+        )
+    except Exception as e:
+        logger.error(f"Failed to start server: {str(e)}")
+        sys.exit(1)