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/views/Dashboard/home/route_brief.dart

@@ -1,6 +1,7 @@
 import 'dart:math' as math;
 
 import 'package:flutter/material.dart';
+import 'package:lucide_icons_flutter/lucide_icons.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 
 import 'package:miler/views/helpers/constants/Colorconstants.dart';
@@ -355,18 +356,14 @@ class ShiftBanner extends StatelessWidget {
       ),
       child: Row(
         children: [
-          Icon(
-            Icons.access_time_rounded,
-            color: ColorConstants.primary,
-            size: 15.sp,
-          ),
+          Icon(LucideIcons.clock, color: ColorConstants.primary, size: 15.sp),
           SizedBox(width: 7.w),
           Text(
             brief.shiftWindowLabel,
             style: TextStyle(
               color: ColorConstants.slateText,
               fontSize: 12.5.sp,
-              fontWeight: FontWeight.w700,
+              fontWeight: FontWeight.w600,
               fontFamily: FontConstants.fontFamily,
             ),
           ),
@@ -381,7 +378,7 @@ class ShiftBanner extends StatelessWidget {
                           ? ColorConstants.warning
                           : ColorConstants.secondaryText),
                 fontSize: 11.5.sp,
-                fontWeight: FontWeight.w700,
+                fontWeight: FontWeight.w600,
                 fontFamily: FontConstants.fontFamily,
               ),
             ),