chore: initial checkpoint - Tesla Roadtrip planner

- Proactive Grok integration (xAI API + local CLI fallback)
- Real road routing via OSRM (no more bird's-eye lines)
- Heavy structured logging for fast iteration
- Strong sanitization + geocoding + ErrorBoundary (no black screens)
- Playwright E2E tests (API diagnostic + full UI flow)
- scripts/dev.sh for one-command startup
- Clean .env.example + documentation

This is a stable checkpoint before further prompt/UI refinement.

client/package.json

@@ -0,0 +1,39 @@
+{
+  "name": "tesla-roadtrip-client",
+  "private": true,
+  "version": "0.1.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "preview": "vite preview",
+    "typecheck": "tsc --noEmit"
+  },
+  "dependencies": {
+    "@tonycodes/auth-react": "^1.4.0",
+    "framer-motion": "^11.0.0",
+    "leaflet": "^1.9.4",
+    "lucide-react": "^0.303.0",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "react-leaflet": "^4.2.1",
+    "react-resizable-panels": "^2.1.7",
+    "react-router-dom": "^6.21.1",
+    "sonner": "^1.4.0",
+    "tailwind-merge": "^2.2.0",
+    "dompurify": "^3.2.4"
+  },
+  "devDependencies": {
+    "@types/leaflet": "^1.9.14",
+    "@types/node": "^20.10.0",
+    "@types/react": "^18.2.47",
+    "@types/react-dom": "^18.2.18",
+    "@vitejs/plugin-react": "^4.2.1",
+    "autoprefixer": "^10.4.16",
+    "postcss": "^8.4.32",
+    "tailwindcss": "^3.4.0",
+    "typescript": "^5.3.2",
+    "vite": "^5.0.8",
+    "@types/dompurify": "^3.0.5"
+  }
+}