refactor(web): migrate from Next.js to Vite + React Router (#2102)

* refactor(web): migrate from Next.js to Vite + React Router

* fix: update build pipelines for Vite migration (out → dist)

- Dockerfile: npm run build → npx vite build, web/out → web/dist
- pyproject.toml: package-data web/out/** → web/dist/**
- paths.py: support both web/dist (Vite) and web/out (legacy) with fallback

* fix: remove .next from git tracking, add to .gitignore

1334 cached files from web/.next/ were accidentally committed.
Added .next/ to both root and web/.gitignore.

* fix: update build process to use Vite and correct output directory

* fix: update pnpm-lock.yaml and eslint config for Vite migration

* style: fix prettier formatting issues

* fix: add eslint-plugin-react-hooks for Vite migration

* fix: remove undefined eslint rule reference, downgrade react-hooks plugin to v5

* fix(web): clean up remaining Next.js artifacts in Vite migration

- Add vite-env.d.ts for import.meta.env and asset type declarations
- Remove dead layout.tsx (providers already in main.tsx)
- Fix useSearchParams destructuring to [searchParams] tuple (11 locations)
- Replace process.env.NEXT_PUBLIC_* with import.meta.env.VITE_*
- Fix langbotIcon.src to langbotIcon (Vite returns URL string)
- Fix Link href to Link to for react-router-dom
- Fix navigate({ scroll: false }) to { preventScrollReset: true }
- Fix [router] dependency arrays to [navigate]
- Remove Next.js plugin from tsconfig, set rsc: false in components.json
- Replace next lint with eslint in lint-staged

* feat: add tools API endpoint and tools-selector form type

Backend:
- Add GET /api/v1/tools — list all available tools (plugin + MCP)
- Add GET /api/v1/tools/<tool_name> — get specific tool details

Frontend:
- Add TOOLS_SELECTOR form type for plugin config forms
- Multi-select dialog with tool name and description
- Add PluginTool entity type and API client methods

* Revert "feat: add tools API endpoint and tools-selector form type"

This reverts commit 3c637fc563.

web/src/app/home/plugins/components/plugin-install-task/PluginInstallProgressDialog.tsx

@@ -1,5 +1,3 @@
-'use client';
-
 import React from 'react';
 import {
   Dialog,

web/src/app/home/plugins/components/plugin-install-task/PluginInstallTaskContext.tsx

@@ -1,5 +1,3 @@
-'use client';
-
 import React, {
   createContext,
   useContext,

web/src/app/home/plugins/components/plugin-install-task/PluginInstallTaskQueue.tsx

@@ -1,5 +1,3 @@
-'use client';
-
 import React from 'react';
 import { useTranslation } from 'react-i18next';
 import { Progress } from '@/components/ui/progress';

web/src/app/home/plugins/components/plugin-installed/PluginInstalledComponent.tsx

@@ -1,7 +1,5 @@
-'use client';
-
 import { useState, useEffect, forwardRef, useImperativeHandle } from 'react';
-import { useRouter } from 'next/navigation';
+import { useNavigate } from 'react-router-dom';
 import { PluginCardVO } from '@/app/home/plugins/components/plugin-installed/PluginCardVO';
 import PluginCardComponent from '@/app/home/plugins/components/plugin-installed/plugin-card/PluginCardComponent';
 import styles from '@/app/home/plugins/plugins.module.css';
@@ -33,11 +31,10 @@ enum PluginOperationType {
   UPDATE = 'UPDATE',
 }
 
-// eslint-disable-next-line react/display-name
 const PluginInstalledComponent = forwardRef<PluginInstalledComponentRef>(
   (props, ref) => {
     const { t } = useTranslation();
-    const router = useRouter();
+    const navigate = useNavigate();
     const { refreshPlugins } = useSidebarData();
     const [pluginList, setPluginList] = useState<PluginCardVO[]>([]);
     const [showOperationModal, setShowOperationModal] = useState(false);
@@ -163,7 +160,7 @@ const PluginInstalledComponent = forwardRef<PluginInstalledComponentRef>(
 
     function handlePluginClick(plugin: PluginCardVO) {
       const pluginId = `${plugin.author}/${plugin.name}`;
-      router.push(`/home/plugins?id=${encodeURIComponent(pluginId)}`);
+      navigate(`/home/plugins?id=${encodeURIComponent(pluginId)}`);
     }
 
     function handlePluginDelete(plugin: PluginCardVO) {

web/src/app/home/plugins/components/plugin-market/PluginMarketComponent.tsx

@@ -1,7 +1,5 @@
-'use client';
-
 import { useState, useEffect, useCallback, useRef, Suspense } from 'react';
-import { useSearchParams } from 'next/navigation';
+import { useSearchParams } from 'react-router-dom';
 import { Input } from '@/components/ui/input';
 import {
   Select,
@@ -47,7 +45,7 @@ function MarketPageContent({
   installPlugin: (plugin: PluginV4) => void;
 }) {
   const { t } = useTranslation();
-  const searchParams = useSearchParams();
+  const [searchParams] = useSearchParams();
 
   const validCategories = [
     'Tool',

web/src/app/home/plugins/components/plugin-market/RecommendationLists.tsx

@@ -1,5 +1,3 @@
-'use client';
-
 import { useState, useRef, useEffect, useCallback } from 'react';
 import { ChevronLeft, ChevronRight, Star } from 'lucide-react';
 import { Button } from '@/components/ui/button';

web/src/app/home/plugins/components/plugin-market/TagsFilter.tsx

@@ -1,5 +1,3 @@
-'use client';
-
 import { useTranslation } from 'react-i18next';
 import {
   Select,