feat(web): migrate application shell to TanStack Start

- replace the legacy client-only Vite bootstrap with TanStack Router routes, Start SSR, and Nitro output

- compose the reusable layout, navigation, appearance, chats, and notifications blocks with application-owned data

- persist UI preferences through server functions and initialize theme, sidebar, and breakpoint state before hydration

- add React Query, hotkey, toaster, and responsive dashboard integration

- add application-owned Lingui configuration and catalogs, mount the runtime provider, and lazily enable I18nDevtool in development

- remove superseded HTML, main entry, theme provider, and application ESLint configuration

apps/web/package.json

@@ -4,32 +4,48 @@
   "type": "module",
   "private": true,
   "scripts": {
-    "dev": "vite",
-    "build": "tsc -b && vite build",
-    "lint": "eslint",
+    "dev": "vite dev",
+    "build": "vite build && tsc -b",
     "format": "prettier --write \"**/*.{ts,tsx}\"",
-    "typecheck": "tsc --noEmit",
-    "preview": "vite preview"
+    "i18n": "workspace-i18n",
+    "i18n:compile": "workspace-i18n compile",
+    "i18n:extract": "workspace-i18n extract",
+    "i18n:ui": "workspace-i18n ui",
+    "typecheck": "tsc -b",
+    "preview": "vite preview",
+    "start": "node .output/server/index.mjs"
   },
   "dependencies": {
+    "@base-ui/react": "^1.6.0",
+    "@base-ui/utils": "^0.3.1",
+    "@floating-ui/utils": "^0.2.12",
+    "@hugeicons/core-free-icons": "^4.2.3",
+    "@hugeicons/react": "^1.1.9",
+    "@iconify/react": "^6.0.2",
+    "@lingui/core": "^6",
+    "@tanstack/react-form": "^1.33.2",
+    "@tanstack/react-hotkeys": "^0.10.0",
+    "@tanstack/react-query": "^5.101.4",
+    "@tanstack/react-router": "^1.170.18",
+    "@tanstack/react-start": "^1.168.32",
+    "@workspace/blocks": "workspace:*",
+    "@workspace/i18n": "workspace:*",
     "@workspace/ui": "workspace:*",
     "lucide-react": "^1.27.0",
     "react": "^19.2.6",
-    "react-dom": "^19.2.6"
+    "react-dom": "^19.2.6",
+    "sonner": "^2.0.7"
   },
   "devDependencies": {
-    "@eslint/js": "^10",
     "@tailwindcss/vite": "^4",
+    "@testing-library/react": "^16.3.2",
     "@types/node": "^24",
     "@types/react": "^19",
     "@types/react-dom": "^19",
     "@vitejs/plugin-react": "^6",
-    "eslint": "^10",
-    "eslint-plugin-react-hooks": "^7.1.1",
-    "eslint-plugin-react-refresh": "^0.5.2",
-    "globals": "^17",
+    "nitro": "^3.0.260610-beta",
     "typescript": "~6",
-    "typescript-eslint": "^8",
-    "vite": "^8"
+    "vite": "^8",
+    "vitest": "^4.1.10"
   }
 }