UI: Cyber/IT design overhaul with semantic status tokens (Material 3)

Re-theme TasQ with a refined enterprise "Cyber/IT" identity on Material 3.
Functionality is unchanged — only color/shape tokens and a few state widgets.

Foundation:
- Hand-tuned light + dark ColorSchemes (deep-slate surfaces, azure/teal/violet
  accents), tightened 12-16dp shape language, flat hairline-outlined cards.
- New AppStatusColors theme extension (success/warning/danger/info/neutral,
  per-brightness) replacing scattered raw Colors.green/orange/red/grey so status
  color is consistent and legible in dark mode.
- New TechChip mono primitive; StatusPill.kind; M3Card hairline variants;
  tightened AppSurfaces radii.

Per-screen:
- Tokenized status colors + radii across dashboard, tickets, tasks, IT service
  requests, attendance, whereabouts, network map, reports charts, auth, and
  shared/admin screens. Added _ticketStatusKind/_taskStatusKind/_isrStatusKind
  mappers so status carries meaning consistently.
- Fixed white pie-slice borders for dark mode; dropped ad-hoc dialog radius
  overrides in favor of the theme default. Categorical palettes (leave-type
  icons, team color picker, distribution charts) intentionally preserved.

Verified: flutter analyze lib clean; flutter build web green; visual QA in
light and dark (dashboard, tickets, attendance).

Co-Authored-By: claude-flow <ruv@ruv.net>

lib/widgets/face_verification_overlay.dart

@@ -9,6 +9,7 @@ import '../providers/attendance_provider.dart';
 import '../providers/profile_provider.dart';
 import '../services/face_verification.dart' as face;
 import '../services/image_compress_service.dart';
+import '../theme/app_status_colors.dart';
 import '../theme/m3_motion.dart';
 import '../widgets/qr_verification_dialog.dart';
 
@@ -302,7 +303,7 @@ class _FaceVerificationOverlayState
                     textAlign: TextAlign.center,
                     style: textTheme.titleMedium?.copyWith(
                       color: _phase == _Phase.success
-                          ? Colors.green
+                          ? AppStatusColors.of(context).success.color
                           : _phase == _Phase.failed
                           ? colors.error
                           : _phase == _Phase.saving
@@ -337,7 +338,7 @@ class _FaceVerificationOverlayState
 
     final Color ringColor;
     if (isSuccess) {
-      ringColor = Colors.green;
+      ringColor = AppStatusColors.of(context).success.color;
     } else if (isFailed) {
       ringColor = colors.error;
     } else if (isSaving) {
@@ -461,7 +462,7 @@ class _FaceVerificationOverlayState
 
         Color dotColor;
         if (isSuccess_) {
-          dotColor = Colors.green;
+          dotColor = AppStatusColors.of(context).success.color;
         } else if (isDone) {
           dotColor = colors.error.withValues(alpha: 0.5);
         } else if (isCurrent) {