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>

lib/widget/Bottom_page.dart

@@ -1,5 +1,6 @@
 import 'dart:ui' show ImageFilter, lerpDouble;
 import 'package:flutter/material.dart';
+import 'package:lucide_icons_flutter/lucide_icons.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 
@@ -10,6 +11,7 @@ import 'package:miler/views/Dashboard/profile/Profilepage.dart';
 import 'package:miler/views/helpers/constants/Font_constant.dart';
 import 'package:miler/views/helpers/constants/Colorconstants.dart';
 import 'package:miler/views/helpers/constants/design_constants.dart';
+import 'package:miler/data/service_profile.dart';
 
 class BottomPage extends StatefulWidget {
   final int initialIndex;
@@ -162,19 +164,30 @@ class _BottomPageState extends State<BottomPage> with TickerProviderStateMixin {
   static const double _compactAfter = 24;
   static const double _expandAfter = 6;
 
-  static const _navItems = [
-    _NavItem(Icons.home_rounded, Icons.home_outlined, 'Home'),
+  /// ── The work tab is named by the line the rider is on ──
+  ///
+  /// The two rider apps this one replaces called a job by two different names:
+  /// **booking** on the parcel side, **delivery** on the meal side. Merging them
+  /// did not make one of those wrong — a rider collecting a consignment for the
+  /// hub is not delivering it, and a rider handing somebody lunch has not taken
+  /// a booking. So the tab reads the noun off the profile instead of picking a
+  /// winner, and a rider (who only ever belongs to one line) sees the word he
+  /// already uses. See [ServiceProfile.jobNoun].
+  ///
+  /// No longer `const`: the label is resolved per build, not baked in.
+  static List<_NavItem> get _navItems => [
+    const _NavItem(LucideIcons.house, LucideIcons.house, 'Home'),
     _NavItem(
-      Icons.local_shipping_rounded,
-      Icons.local_shipping_outlined,
-      'Bookings',
+      LucideIcons.truck,
+      LucideIcons.truck,
+      ServiceProfile.active.workTabLabel,
     ),
     // Was Earnings. A pay figure is a once-or-twice-a-day read and it did not
     // need a permanent quarter of the bar — it opens from Account now. What the
     // rider glances at between stops is what he has already finished, which
     // used to sit on Home clogging the list he decides from.
-    _NavItem(Icons.history_rounded, Icons.history_outlined, 'Activity'),
-    _NavItem(Icons.person_rounded, Icons.person_outline, 'Account'),
+    const _NavItem(LucideIcons.history, LucideIcons.history, 'Activity'),
+    const _NavItem(LucideIcons.user, LucideIcons.user, 'Account'),
   ];
 
   @override
@@ -544,7 +557,7 @@ class _NavBarItem extends StatelessWidget {
                             fontSize: 10.5.sp,
                             fontWeight: FontWeight.lerp(
                               FontWeight.w500,
-                              FontWeight.w700,
+                              FontWeight.w600,
                               lit,
                             ),
                             fontFamily: FontConstants.fontFamily,