Initial commit: TaskPool React panel

- React frontend with route-level code splitting
- Backend rebranded from Baihu to TaskPool
- DB brand migration script and local compatibility

docs/.vitepress/theme/custom.css

@@ -0,0 +1,11 @@
+:root {
+  --vp-font-family-mono: "Ubuntu Mono", "Noto Sans SC", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Courier New", monospace;
+  --vp-code-font-size: 14px;
+}
+
+
+
+/* 仅在 Windows 下优先使用 Noto Sans SC (思源黑体)，其他系统保持系统默认字体或 Inter */
+.is-windows {
+  --vp-font-family-base: "Inter", "Noto Sans SC", "Microsoft YaHei", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
+}

docs/.vitepress/theme/index.ts

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+import DefaultTheme from 'vitepress/theme'
+import './custom.css'
+
+export default DefaultTheme