feat(programmer): admin monitor tab + drill-down

- Add isStrictAdminProvider (role == 'admin' only)
- Add programmer_tasks_tabs.dart with ProgrammerTasksTab enum,
  programmerTasksTabsFor, parseProgrammerTasksTab, programmerTasksTabLabel
- Make ProgrammerTasksListScreen role-aware via initialTab param and
  programmerTasksTabsFor; admin sees Monitor/Mine/All tabs
- Add MonitorTab with AppStatusSummaryRow + responsive programmer grid
  (1/2/3 cols) + HelpPanel side/bottom
- Add ProgrammerMonitorCard with state pills (Working/Paused/Idle/On leave/Pass slip)
- Add HelpPanel ConsumerStatefulWidget with day stepper and help-edge rows
- Add ProgrammerDrillDownScreen (/programmer-tasks/programmers/:userId);
  non-admins see lock empty view
- Router: pass tab query param; add programmers/:userId before :id route
- Tests: 7/7 pass; analyze: 0 new issues

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

lib/screens/programmer_tasks/programmer_drill_down_screen.dart

@@ -0,0 +1,52 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+import '../../models/profile.model.dart';
+import '../../providers/profile_provider.dart';
+import '../../widgets/app_state_view.dart';
+import 'dashboard/programmer_dashboard.dart';
+
+/// Admin-only drill-down screen that shows [ProgrammerDashboard] for a
+/// specific user in read-only mode.
+///
+/// Route: /programmer-tasks/programmers/:userId
+class ProgrammerDrillDownScreen extends ConsumerWidget {
+  const ProgrammerDrillDownScreen({
+    super.key,
+    required this.userId,
+  });
+
+  final String userId;
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final isStrictAdmin = ref.watch(isStrictAdminProvider);
+    final profilesAsync = ref.watch(profilesProvider);
+
+    if (!isStrictAdmin) {
+      return Scaffold(
+        appBar: AppBar(title: const Text('Programmer')),
+        body: const AppEmptyView(
+          icon: Icons.lock_outline,
+          title: 'Admins only',
+        ),
+      );
+    }
+
+    // Resolve the programmer's name for the AppBar title.
+    final profiles = profilesAsync.valueOrNull ?? <Profile>[];
+    Profile? profile;
+    for (final p in profiles) {
+      if (p.id == userId) {
+        profile = p;
+        break;
+      }
+    }
+    final name = profile?.fullName ?? 'Programmer';
+
+    return Scaffold(
+      appBar: AppBar(title: Text(name)),
+      body: ProgrammerDashboard(userId: userId, readOnly: true),
+    );
+  }
+}