QA hardening: security RLS fixes, Flutter 3.47.5 upgrade, UI/validation fixes

Security — enforce write authorization server-side (was UI/RPC-only):
- it_service_requests RLS: block cross-office read/edit + self-approve (QA-015)
- pass_slips RLS: owner can complete but not self-approve (QA-046)
- swap_requests RLS: scope select/update to participants + admin (QA-047)
- storage: tighten it_service_attachments + task_attachments write/delete (QA-027)
- admin_user_management edge function: allow programmers to manage users (QA-016)

Fixes:
- workforce generator "uncovered shifts" false alarms (QA-043/044)
- network-map VLAN + New-location dialog validation, disabled-until-valid (QA-048)
- de-flake time-of-day-dependent dashboard metrics test (QA-045)

Toolchain:
- upgrade to Flutter 3.47.5 / Dart 3.13.4; font_awesome_flutter 11.0.0,
  flutter_quill 11.6.0, pdfrx 2.6.5; clear resulting deprecations (QA-002)

analyze clean; 139 tests pass; web build succeeds. Report + evidence in docs/qa/.

Note: also carries the in-progress Brick model cleanup already present in the
working tree. QA-001 (AI keys public in the build) is deferred by owner decision.

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

lib/widgets/app_shell.dart

@@ -158,7 +158,11 @@ class _AppNavigationRailState extends State<AppNavigationRail> {
   @override
   Widget build(BuildContext context) {
     final cs = Theme.of(context).colorScheme;
-    final currentIndex = _currentIndex(widget.location, widget.items);
+    // Exact match only: routes outside the rail (profile, notifications)
+    // highlight nothing instead of falling back to Dashboard.
+    final currentIndex = widget.items.indexWhere(
+      (item) => _isSelected(widget.location, item.route),
+    );
 
     // M3 Expressive: tonal surface container instead of a hard border divider.
     // Custom scrollable layout replaces NavigationRail so items are reachable
@@ -481,15 +485,17 @@ List<NavSection> _buildSections(String role) {
       icon: Icons.groups_outlined,
       selectedIcon: Icons.groups,
     ),
-    NavItem(
-      label: 'Reports',
-      route: '/reports',
-      icon: Icons.analytics_outlined,
-      selectedIcon: Icons.analytics,
-    ),
+    if (!isStandard)
+      NavItem(
+        label: 'Reports',
+        route: '/reports',
+        icon: Icons.analytics_outlined,
+        selectedIcon: Icons.analytics,
+      ),
   ];
 
-  if (role == 'admin' || role == 'programmer' || role == 'dispatcher') {
+  // Must match the /settings guard in app_router.dart (admin/programmer).
+  if (role == 'admin' || role == 'programmer') {
     return [
       NavSection(label: 'Operations', items: mainItems),
       NavSection(