feat: wire build/test infra, trips API, and enriched journey stops

- Add tsconfig.json (server) + client/tsconfig.{json,app.json,node.json}
  so typecheck and tsc -b actually work.
- Fix npm test to run Playwright (was running vitest on Playwright specs);
  typecheck now covers both server and client.
- Mount routes before app.listen, add error handler, mount optional
  @tonycodes/auth-express middleware when AUTH_SECRET is set.
- Add /api/trips (GET/POST/PATCH/DELETE) backed by an in-memory store
  that gracefully degrades when DATABASE_URL is unset.
- Add prisma/seed.ts skeleton and server/types/express.d.ts for req.auth.
- Rewrite Grok prompt for combo-aware planning: charge+eat,
  stay+destination-charging, eat+viewpoint, etc., with amenities,
  cuisine, priceLevel, duration, day titles and trip highlights.
- Extend Stop schema + normalization to preserve all enrichment fields.
- New StopCard component renders combo pill, description, meta row
  (charge / stop / battery / cuisine / £-level) and amenity icons;
  map popups show the same enriched detail; timeline gains day titles
  and a HIGHLIGHTS sidebar.
- Fix server TS errors (vehicle accepted as string | {name,rangeKm},
  JSON parse results typed).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

README.md

@@ -106,3 +106,64 @@ First launch target: United Kingdom & Europe.
 - Make sure your `XAI_API_KEY` is set (otherwise you'll get very basic responses)
 - Check the backend terminal — it has extremely detailed logs
 - The app is designed so you can iterate quickly by watching the logs
+
+---
+
+## Development & Iteration Workflow (Autonomous Loop)
+
+This project is designed for fast, autonomous iteration using Playwright.
+
+### One-Command Iteration Loop
+
+The recommended way to test and iterate is:
+
+```bash
+./scripts/iterate.sh
+```
+
+This script will:
+1. Ensure both backend and frontend are running (via `./scripts/dev.sh`)
+2. Run the fast backend diagnostic test (`smoke test`)
+3. Run the full E2E Playwright test in headed mode
+4. Open the Playwright HTML report
+5. Show the latest screenshots and video
+6. Print the most relevant backend log lines from the test window
+
+After the script finishes, review the artifacts and tell me what to fix. Then just run `./scripts/iterate.sh` again.
+
+### Fast Smoke Test (Backend Only)
+
+When you only want to quickly test if Grok is responding (without waiting for the full UI flow):
+
+```bash
+./scripts/smoke.sh
+```
+
+This runs in ~30–90 seconds and is perfect for prompt tuning or backend debugging.
+
+### Manual Commands
+
+| Command                    | Description                              |
+|---------------------------|------------------------------------------|
+| `./scripts/dev.sh`        | Start both servers (recommended)         |
+| `npm run dev`             | Start both servers (via npm)             |
+| `./scripts/iterate.sh`    | Full autonomous test + report loop       |
+| `./scripts/smoke.sh`      | Fast backend-only Grok test              |
+| `npx playwright test`     | Run all Playwright tests manually        |
+
+### Test Reports & Artifacts
+
+- Playwright HTML report: `npx playwright show-report`
+- Screenshots & videos: `test-results/`
+- Backend logs: Look in your terminal or `/tmp/tesla-roadtrip-backend.log` (if you enabled logging to file)
+
+### Workflow Summary
+
+1. Make a code or prompt change
+2. Run `./scripts/iterate.sh`
+3. Review the report + screenshots + backend logs
+4. Tell me what to fix
+5. Repeat
+
+This loop lets me drive most of the testing and debugging with minimal manual work from you.
+