feat(mechanic-pwa): scaffold Vite+React+TS+Tailwind+shadcn+PWA+routing (Phase G G1-G5)

- Vite 8 + React 19 + TypeScript 6 project via create-vite react-ts template
- Tailwind v3.4 with shadcn-compatible cream palette (CSS vars)
- vite-plugin-pwa v1.3 with autoUpdate SW, manifest.webmanifest, 192+512 icons
- shadcn/ui components written manually (default style): button, card, input, label, sonner
- Zustand persist auth store, ky API client with Bearer token hooks
- React Router v7 routing with RequireAuth guard
- TanStack Query v5 + Toaster wired in main.tsx
- 5 stub pages: Login, Home, VehicleCard, InspectionEditor, InspectionReview
- Build: 293 KB JS / 9.4 KB CSS, clean zero-warning tsc+vite build

Co-Authored-By: claude-flow <ruv@ruv.net>

mechanic-pwa/frontend/package.json

@@ -0,0 +1,47 @@
+{
+  "name": "frontend",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "lint": "eslint .",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "@radix-ui/react-label": "^2.1.8",
+    "@radix-ui/react-slot": "^1.2.4",
+    "@tanstack/react-query": "^5.100.10",
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "ky": "^1.14.3",
+    "lucide-react": "^0.400.0",
+    "react": "^19.2.6",
+    "react-dom": "^19.2.6",
+    "react-hook-form": "^7.76.0",
+    "react-router-dom": "^7.15.1",
+    "sonner": "^1.7.4",
+    "tailwind-merge": "^2.6.1",
+    "vite-plugin-pwa": "^1.3.0",
+    "zod": "^3.25.76",
+    "zustand": "^5.0.13"
+  },
+  "devDependencies": {
+    "@eslint/js": "^10.0.1",
+    "@types/node": "^24.12.4",
+    "@types/react": "^19.2.14",
+    "@types/react-dom": "^19.2.3",
+    "@vitejs/plugin-react": "^6.0.1",
+    "autoprefixer": "^10.5.0",
+    "eslint": "^10.3.0",
+    "eslint-plugin-react-hooks": "^7.1.1",
+    "eslint-plugin-react-refresh": "^0.5.2",
+    "globals": "^17.6.0",
+    "postcss": "^8.5.14",
+    "tailwindcss": "^3.4.19",
+    "typescript": "~6.0.2",
+    "typescript-eslint": "^8.59.2",
+    "vite": "^8.0.12"
+  }
+}