Replace the customer app with Doormile CX

Book a pickup, track it to delivery — the rebuilt customer app.

- Design language from doormile-screens.html: brand #8F0F06, Manrope +
  Geist Mono (variable fonts), bordered cards instead of shadows, crimson
  brand headers, sliding tab indicator, mono for anything read digit by digit.
- lib/data (one live API implementation, plus a debug-only offline fake),
  lib/state, lib/ui (tokens, widgets, screens).
- 84 tests, plus a design snapshot harness that renders every screen with the
  real fonts: flutter test test/design_snapshot_test.dart --run-skipped
  --update-goldens

This replaces the previous app (pubspec 'doormile', app id
com.doormile.customer). That tree remains in history at 6c7d656; note its
android/app/google-services.json is not carried over, and the application id
here is in.doormile.customer.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

integration_test/book_one_test.dart

@@ -0,0 +1,89 @@
+import 'package:doormile_cx/data/location_service.dart';
+import 'package:doormile_cx/main.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:integration_test/integration_test.dart';
+
+/// Drives the real app on the simulator all the way through a booking, then
+/// holds on the confirmation so it can be photographed from outside.
+///
+/// Run against the dev data, which is where any 4-digit code signs in and the
+/// serviceability / slots / booking all exist without a server:
+///
+///     flutter test integration_test/book_one_test.dart \
+///       -d <simulator> --dart-define=DM_MOCK=true
+void main() {
+  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
+
+  testWidgets('books a pickup to Chennai and lands on the confirmation',
+      (tester) async {
+    // Deterministic pin, so the pickup step never stops on an OS location
+    // dialog and resolves the same way every run.
+    LocationService.instance = FixedLocationService();
+
+    await tester.pumpWidget(const DoormileApp());
+    await tester.pumpAndSettle(const Duration(milliseconds: 400));
+
+    // The app runs continuous animations, so pumpAndSettle would spin forever.
+    // Pump fixed slices instead.
+    Future<void> hold([int ms = 900]) async {
+      await tester.pump();
+      await tester.pump(Duration(milliseconds: ms));
+      await tester.pump(const Duration(milliseconds: 400));
+    }
+
+    // ---- sign in: 9876543210 + any 4-digit code ----------------------------
+    await tester.enterText(find.byType(TextField).first, '9876543210');
+    await hold(300);
+    await tester.tap(find.text('Continue'));
+    await hold();
+
+    final boxes = find.byType(TextField);
+    for (var i = 0; i < 4; i++) {
+      await tester.enterText(boxes.at(i), '1');
+      await tester.pump();
+    }
+    await hold(1200);
+    expect(find.text('Where should we pick up?'), findsOneWidget);
+    debugPrint('DRIVER: signed in, on Home');
+
+    // ---- BOOK → confirm the pin -----------------------------------
+    await tester.tap(find.text('BOOK'));
+    await hold(1200);
+    await tester.tap(find.text('Next'));
+    await hold();
+    expect(find.text('Where are you sending it?'), findsOneWidget);
+
+    // ---- destination: Tamil Nadu ▸ Chennai ---------------------------------
+    await tester.tap(find.text('Tamil Nadu'));
+    await hold();
+    await tester.tap(find.text('Chennai'));
+    await hold();
+    expect(find.text('Chennai, Tamil Nadu'), findsOneWidget);
+    await tester.tap(find.text('Next'));
+    await hold();
+
+    // ---- pickup window -----------------------------------------------------
+    expect(find.text('When should we come?'), findsOneWidget);
+    await tester.tap(find.text('2:00 – 4:00 PM').first);
+    await hold();
+    await tester.tap(find.text('Review booking'));
+    await hold(1200);
+
+    // ---- review → book -----------------------------------------------------
+    expect(find.text('Review pickup details'), findsOneWidget);
+    debugPrint('DRIVER: on review');
+    await tester.tap(find.text('Book Pickup'));
+    await hold(1600);
+
+    // ---- confirmation ------------------------------------------------------
+    expect(find.text('Pickup booked'), findsOneWidget);
+    debugPrint('DRIVER: BOOKED — holding on confirmation');
+
+    // Hold so the confirmation can be photographed from outside the test.
+    for (var i = 0; i < 50; i++) {
+      await tester.pump(const Duration(milliseconds: 500));
+    }
+  });
+}