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/stop_verify_chrome_test.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:lucide_icons_flutter/lucide_icons.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 import 'package:flutter_test/flutter_test.dart';
 
@@ -83,16 +84,29 @@ void main() {
     expect(fills, isNot(contains(ColorConstants.cardSurface)));
   });
 
-  testWidgets('section names are quiet labels, not headings', (tester) async {
+  testWidgets('a section names itself, and stays under the stop', (
+    tester,
+  ) async {
     await pump(tester, stopOf(type: 'delivery', deliveryQty: 1));
 
-    // Small, letterspaced and grey — the group is named without competing with
-    // the controls inside it.
-    final label = tester.widget<Text>(find.text('WHO RECEIVED IT?'));
-    expect(label.style!.color, ColorConstants.secondaryText);
-    expect(label.style!.letterSpacing, greaterThan(0.8));
+    // ── This assertion changed with the design, deliberately ──
+    //
+    // It used to require a grey letterspaced eyebrow, from when the sections
+    // were hairline-ruled groups on a white page: with no boundary of their
+    // own, a loud title would have been the only thing separating them, and
+    // five loud titles is a page of shouting.
+    //
+    // They are panels now. The boundary does the separating, so the title is
+    // free to be a title — the line the rider reads to know what this step
+    // asks of him — set in the same ink as the rest of the panel's content
+    // rather than in the grey reserved for metadata.
+    final label = tester.widget<Text>(find.text('Who received it?'));
+    expect(label.style!.color, ColorConstants.slateText);
+    expect(label.style!.fontWeight, FontWeight.w700);
 
-    // Quieter than the stop it belongs to, which is itself only context.
+    // What has not changed, and must not: it is still quieter than the stop it
+    // belongs to. The customer's name is the subject of the screen; a step
+    // inside it is not allowed to outrank it.
     final name = tester.widget<Text>(find.text('Priya Sharma'));
     expect(label.style!.fontSize, lessThan(name.style!.fontSize!));
   });
@@ -135,7 +149,7 @@ void main() {
     // No accent button at all — a saturated pill at 45% still reads as a
     // button, so the rider taps it and nothing happens.
     expect(find.byType(MilerButton), findsNothing);
-    expect(find.byIcon(Icons.lock_outline_rounded), findsOneWidget);
+    expect(find.byIcon(LucideIcons.lock), findsOneWidget);
 
     // And the label stays readable: grey type on a neutral fill, not white
     // dropped to 45% over a wash of itself.