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/Resources/Feedback/Tables/FeedbackTable.php

@@ -16,16 +16,28 @@ class FeedbackTable
     {
         return $table
             ->columns([
+                TextColumn::make('id')
+                    ->label('#')
+                    ->sortable()
+                    ->weight('bold')
+                    ->color('primary'),
+
                 TextColumn::make('title')
                     ->searchable()
-                    ->sortable(),
+                    ->sortable()
+                    ->weight('semibold')
+                    ->limit(40),
+
                 TextColumn::make('customer.name')
                     ->searchable()
                     ->sortable(),
+
                 TextColumn::make('customerProduct.product.name')
                     ->label('Product')
                     ->placeholder('General')
-                    ->sortable(),
+                    ->sortable()
+                    ->toggleable(),
+
                 TextColumn::make('contract.type')
                     ->label('Contract')
                     ->badge()
@@ -38,17 +50,17 @@ class FeedbackTable
                     })
                     ->placeholder('-')
                     ->toggleable(),
+
                 TextColumn::make('feedbackChannel.name')
                     ->label('Channel')
-                    ->formatStateUsing(fn ($state, $record) => sprintf(
-                        '<span style="display:inline-block;background:%s;color:#fff;padding:2px 10px;border-radius:9999px;font-size:0.75rem;">%s</span>',
-                        $record->feedbackChannel?->color ?: '#6b7280',
-                        e($state)
-                    ))
-                    ->html(),
+                    ->badge()
+                    ->color('gray'),
+
                 TextColumn::make('tags.name')
                     ->badge()
-                    ->separator(','),
+                    ->separator(',')
+                    ->toggleable(),
+
                 TextColumn::make('status')
                     ->badge()
                     ->color(fn(string $state): string => match ($state) {
@@ -58,20 +70,28 @@ class FeedbackTable
                         'closed' => 'gray',
                         default => 'gray',
                     }),
+
                 TextColumn::make('currentDepartment.name')
                     ->label('Department')
+                    ->badge()
+                    ->color('info')
                     ->toggleable(),
+
                 TextColumn::make('assignedTo.name')
                     ->label('Assigned To')
                     ->toggleable(),
+
                 IconColumn::make('is_escalated')
                     ->label('Escalated')
                     ->boolean()
                     ->toggleable(),
+
                 TextColumn::make('created_at')
-                    ->dateTime()
+                    ->label('Created')
+                    ->since()
                     ->sortable()
-                    ->toggleable(),
+                    ->toggleable()
+                    ->color('secondary'),
             ])
             ->filters([
                 SelectFilter::make('status')