Miler rider app: surface system, visible design language, backend lifecycle

Design system
- MilerSurface ladder (canvas → working → raised → floating) with MilerPanel
  as layer 1; canvas moved to #DEE3EA so white separates at 1.290:1.
- Visible vocabulary applied across Home, Deliveries, Activity, Account and
  the sheets: hero heads (tabular numeral + small caption, clamped at 1.3x),
  canvas wells for anything that opens, small filled tags for shelf labels,
  demoted placeholders. Recorded in DESIGN_SYSTEM.md §6.
- One icon family: 222 Material glyphs migrated to Lucide; none left outside
  lib/xpress.
- Colour semantics corrected: amber only for what is genuinely owed, brand red
  reserved for the live stop, disabled primaries go neutral rather than pale.

Data and lifecycle
- lib/data/lifecycle.dart reads mutations for what they prove; route_order.dart
  makes admin sequence the single ordering authority; service_day.dart, and
  stop_area.dart rewritten against live Coimbatore addresses (digit-token
  stripping, city stoplist, street suffixes, stammer collapse).
- countLabel states the load once, in bags.

Testing
- 1440 tests passing; golden shot harnesses for Home, Deliveries, Activity,
  sheets and verify, with test/failures/ now gitignored (diff debris).
- New pins: home_gutter_test, stop_area_test, plus updated structural bounds.

Note: this commit also carries pre-existing working-tree deletions that were
present before this work (API_SPEC.md, README.md, demo test fixtures).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

test/intro_screen_test.dart

@@ -20,10 +20,8 @@ void main() {
     await tester.pumpWidget(
       ScreenUtilInit(
         designSize: const Size(390, 844),
-        builder: (_, _) => MaterialApp(
-          theme: AppTheme.light,
-          home: const Introscreen(),
-        ),
+        builder: (_, _) =>
+            MaterialApp(theme: AppTheme.light, home: const Introscreen()),
       ),
     );
     await tester.pumpAndSettle();
@@ -35,8 +33,9 @@ void main() {
     Size(390, 844),
     Size(430, 932),
   ]) {
-    testWidgets('all three slides lay out at ${size.width.toInt()}pt',
-        (tester) async {
+    testWidgets('all three slides lay out at ${size.width.toInt()}pt', (
+      tester,
+    ) async {
       await pump(tester, screen: size);
       expect(tester.takeException(), isNull);
 
@@ -76,8 +75,9 @@ void main() {
   // The old copy pitched a gig marketplace — "pickups near you", accepted from a
   // feed. This product assigns routes from a hub. Onboarding that teaches the
   // wrong model is worse than none, so the wrong words are pinned out.
-  testWidgets('does not promise a marketplace the app does not have',
-      (tester) async {
+  testWidgets('does not promise a marketplace the app does not have', (
+    tester,
+  ) async {
     await pump(tester, screen: const Size(390, 844));
     for (final wrong in [
       'Find pickups near you',
@@ -85,7 +85,11 @@ void main() {
       'Earn more, every shift',
       'Powered by AI',
     ]) {
-      expect(find.text(wrong), findsNothing, reason: '"$wrong" is not this app');
+      expect(
+        find.text(wrong),
+        findsNothing,
+        reason: '"$wrong" is not this app',
+      );
     }
   });
 }