feat: granular permissions, export backup, user/role management

- PermissionSeeder: 29 permissions with role mapping (admin/manager/staff)
- Policies updated to use hasPermissionTo() instead of hasRole()
- ExportBackup command: JSON per-table backup with chunk processing
- UserResource: CRUD users with role assignment (admin only)
- RoleResource: CRUD roles with permission assignment (admin only)
- UserPolicy + RolePolicy: admin-only access control
- ImportCskh: detailed skip logging with color in dry-run mode
- Widgets: permission-based visibility checks
- Tests: 8/8 pass (21 assertions)

app/Filament/Widgets/HandlerPerformanceWidget.php

@@ -10,6 +10,8 @@ class HandlerPerformanceWidget extends ChartWidget
 {
     protected ?string $heading = 'Avg Processing Time by Handler';
 
+    protected ?string $description = 'Average time from ticket creation to resolution, broken down by handler.';
+
     protected int|string|array $columnSpan = 'full';
 
     protected function getType(): string
@@ -25,7 +27,7 @@ class HandlerPerformanceWidget extends ChartWidget
             ->whereIn('status', ['resolved', 'closed'])
             ->whereNotNull('assigned_to');
 
-        if ($user->hasRole('manager')) {
+        if ($user->hasRole('manager') && ! $user->hasRole('admin')) {
             $deptIds = Department::where('manager_id', $user->id)->pluck('id');
             $query->whereIn('current_department_id', $deptIds);
         }
@@ -40,12 +42,37 @@ class HandlerPerformanceWidget extends ChartWidget
         $labels = $handlers->map(fn ($h) => $h->assignedTo?->name ?? 'Unknown')->toArray();
         $data = $handlers->map(fn ($h) => round($h->avg_minutes, 1))->toArray();
 
+        // Generate gradient colors based on performance
+        $maxMinutes = max($data) ?: 1;
+        $colors = collect($data)->map(function ($minutes) use ($maxMinutes) {
+            $ratio = $minutes / $maxMinutes;
+            if ($ratio > 0.8) {
+                return 'rgba(220, 38, 38, 0.8)'; // Red for slow
+            } elseif ($ratio > 0.5) {
+                return 'rgba(217, 119, 6, 0.8)'; // Amber for medium
+            }
+            return 'rgba(26, 86, 219, 0.8)'; // Blue for fast
+        })->toArray();
+
+        $borderColors = collect($data)->map(function ($minutes) use ($maxMinutes) {
+            $ratio = $minutes / $maxMinutes;
+            if ($ratio > 0.8) {
+                return 'rgb(220, 38, 38)';
+            } elseif ($ratio > 0.5) {
+                return 'rgb(217, 119, 6)';
+            }
+            return 'rgb(26, 86, 219)';
+        })->toArray();
+
         return [
             'datasets' => [
                 [
                     'label' => 'Avg Time (minutes)',
                     'data' => $data,
-                    'backgroundColor' => '#3b82f6',
+                    'backgroundColor' => $colors,
+                    'borderColor' => $borderColors,
+                    'borderWidth' => 1,
+                    'borderRadius' => 6,
                 ],
             ],
             'labels' => $labels,
@@ -54,6 +81,6 @@ class HandlerPerformanceWidget extends ChartWidget
 
     public static function canView(): bool
     {
-        return auth()->user()?->hasRole(['admin', 'manager']) ?? false;
+        return auth()->user()?->hasPermissionTo('view-dashboard-widgets') ?? false;
     }
 }