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/web/src/app/chat/components/site-header.tsx

@@ -0,0 +1,86 @@
+// Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
+// SPDX-License-Identifier: MIT
+
+import { StarFilledIcon, GitHubLogoIcon } from "@radix-ui/react-icons";
+import Link from "next/link";
+import { useTranslations } from 'next-intl';
+
+import { LanguageSwitcher } from "~/components/deep-flow/language-switcher";
+import { NumberTicker } from "~/components/magicui/number-ticker";
+import { Button } from "~/components/ui/button";
+import { env } from "~/env";
+
+export function SiteHeader() {
+  const t = useTranslations('common');
+
+  return (
+    <header className="supports-backdrop-blur:bg-background/80 bg-background/40 sticky top-0 left-0 z-40 flex h-15 w-full flex-col items-center backdrop-blur-lg">
+      <div className="container flex h-15 items-center justify-between px-3">
+        <div className="text-xl font-medium">
+          <span className="mr-1 text-2xl">🦌</span>
+          <span>DeepFlow</span>
+        </div>
+        <div className="relative flex items-center gap-2">
+          <LanguageSwitcher />
+          <div
+            className="pointer-events-none absolute inset-0 z-0 h-full w-full rounded-full opacity-60 blur-2xl"
+            style={{
+              background: "linear-gradient(90deg, #ff80b5 0%, #9089fc 100%)",
+              filter: "blur(32px)",
+            }}
+          />
+          <Button
+            variant="outline"
+            size="sm"
+            asChild
+            className="group relative z-10"
+          >
+            <Link href="" target="_blank">
+              <GitHubLogoIcon className="size-4" />
+              {t('starOnGitHub')}
+              {env.NEXT_PUBLIC_STATIC_WEBSITE_ONLY &&
+                env.GITHUB_OAUTH_TOKEN && <StarCounter />}
+            </Link>
+          </Button>
+        </div>
+      </div>
+      <hr className="from-border/0 via-border/70 to-border/0 m-0 h-px w-full border-none bg-gradient-to-r" />
+    </header>
+  );
+}
+
+export async function StarCounter() {
+  let stars = 1000; // Default value
+
+  try {
+    const response = await fetch(
+      "",
+      {
+        headers: env.GITHUB_OAUTH_TOKEN
+          ? {
+              Authorization: `Bearer ${env.GITHUB_OAUTH_TOKEN}`,
+              "Content-Type": "application/json",
+            }
+          : {},
+        next: {
+          revalidate: 3600,
+        },
+      },
+    );
+
+    if (response.ok) {
+      const data = await response.json();
+      stars = data.stargazers_count ?? stars; // Update stars if API response is valid
+    }
+  } catch (error) {
+    console.error("Error fetching GitHub stars:", error);
+  }
+  return (
+    <>
+      <StarFilledIcon className="size-4 transition-colors duration-300 group-hover:text-yellow-500" />
+      {stars && (
+        <NumberTicker className="font-mono tabular-nums" value={stars} />
+      )}
+    </>
+  );
+}