feat(carwash): review outbox, booth side — plate-blurred vehicle crop + the operator's choice, queued for a trusted remote reviewer

The operator's category choice is a hypothesis, not truth (user, 2026-09-06): each wash
order with a vehicle read queues a package for a trusted reviewer over the private overlay
(Netbird); the verdict becomes the phase-B training label and the per-operator error rate.
wiki/concepts/vision-review-outbox.md.

- Boxes: the vision service returns the vehicle bbox; snapshot.ts stores the vehicle and
  plate boxes on the read as FRACTIONS of the analysed frame (the stored snapshot is a
  downscaled copy); vehicleForIdentity() returns them.
- carwash_review_outbox (migration 0031) + review-outbox.ts: crop = detector box + 8 %
  margin, ≤ 640 px, plate blurred in place from the plate box; payload carries a
  pseudonymous booth id and a keyed operator hash — no site name, no plate, no OSD, no
  bystanders; multipart POST with a per-booth bearer; 2xx → sent (image dropped);
  400/404/413/415/422 → abandoned; anything else → backoff 1 min·2^n capped 6 h; voided
  orders and items older than 14 days abandoned unsent. Nothing queued while unconfigured.
- Enqueue is fire-and-forget off the intake path in createOrder; the loop runs every
  CARWASH_REVIEW_INTERVAL_SEC (60) and stops on close.
- GET /api/carwash/review/status (site:read) + a "Remote review" line in Setup → Car wash.
- Env CARWASH_REVIEW_URL / _TOKEN / _BOOTH_ID (all three or off) documented in
  .env.example and forwarded by compose.
- Tests: review-outbox.test.ts (crop + blur on a synthetic frame, config/pseudonyms,
  queue/drain/backoff/abandon, through the app). Wiki: new concept page, index,
  venue-modules As built, log. The collector is not built.

Claude-Session: https://claude.ai/code/session_01FWncR69HgGPuei1dLrW3cU

apps/server/src/modules/carwash/index.ts

@@ -1,4 +1,5 @@
 import type { ServerModule } from "../index.js";
+import { ReviewOutbox, reviewUploadConfigFromEnv } from "./review-outbox.js";
 import { carwashRoutes } from "./routes.js";
 import { CarwashService } from "./service.js";
 
@@ -10,10 +11,18 @@ import { CarwashService } from "./service.js";
 export const carwashModule: ServerModule = {
   id: "carwash",
   async register(app, deps) {
-    const service = new CarwashService(deps, app.log);
+    // The review outbox (wiki/concepts/vision-review-outbox.md): on when the stack env
+    // names a collector URL, a per-booth token and a pseudonymous booth id; off = no
+    // queueing at all. One-way, background, never on the intake path.
+    const cfg = reviewUploadConfigFromEnv();
+    const outbox = new ReviewOutbox(deps.db, app.log, cfg);
+    app.log.info(cfg ? `carwash review upload: on → ${new URL(cfg.url).host} as ${cfg.boothId}` : "carwash review upload: off");
+    outbox.start();
+    app.addHook("onClose", async () => outbox.stop());
+    const service = new CarwashService(deps, app.log, outbox);
     // A wash ordered with payAt = "booth" is a charge line on the parking settlement;
     // the core calls back after the payment is signed so the order is marked paid.
     deps.payStation.registerChargeProvider(service.chargeProvider());
-    await carwashRoutes(app, deps, service);
+    await carwashRoutes(app, deps, service, outbox);
   },
 };