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/route_brief_test.dart

@@ -93,19 +93,21 @@ void main() {
       expect(withOrigin.routeKm, lessThan(15));
     });
 
-    test('falls back to the per-stop kms field when coordinates are missing',
-        () {
-      final brief = RouteBrief.from(
-        orderIds: const ['A'],
-        ordersMap: {
-          'A': {'Quantity': '1', 'kms': '4.2'},
-        },
-        shiftStart: '',
-        shiftEnd: '',
-      );
+    test(
+      'falls back to the per-stop kms field when coordinates are missing',
+      () {
+        final brief = RouteBrief.from(
+          orderIds: const ['A'],
+          ordersMap: {
+            'A': {'Quantity': '1', 'kms': '4.2'},
+          },
+          shiftStart: '',
+          shiftEnd: '',
+        );
 
-      expect(brief.routeKm, 4.2);
-    });
+        expect(brief.routeKm, 4.2);
+      },
+    );
   });
 
   group('RouteBrief shift window', () {
@@ -267,16 +269,19 @@ void main() {
         orderIds: const ['late', 'soon', 'later'],
         ordersMap: {
           'late': {
-            'expected_pickup_time':
-                now.subtract(const Duration(minutes: 20)).toIso8601String(),
+            'expected_pickup_time': now
+                .subtract(const Duration(minutes: 20))
+                .toIso8601String(),
           },
           'soon': {
-            'expected_pickup_time':
-                now.add(const Duration(minutes: 10)).toIso8601String(),
+            'expected_pickup_time': now
+                .add(const Duration(minutes: 10))
+                .toIso8601String(),
           },
           'later': {
-            'expected_pickup_time':
-                now.add(const Duration(hours: 3)).toIso8601String(),
+            'expected_pickup_time': now
+                .add(const Duration(hours: 3))
+                .toIso8601String(),
           },
         },
         shiftStart: '09:00:00',