Improve sorting controls for moderation queues

Update the `QueueSortControls` component to validate sort fields and improve type safety for sort direction toggling.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: ef7037e7-a631-48a2-94d1-9a4b52d7c35a
Replit-Commit-Checkpoint-Type: intermediate_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/7cdf4e95-3f41-4180-b8e3-8ef56d032c0e/ef7037e7-a631-48a2-94d1-9a4b52d7c35a/kcnWjk6

src/components/moderation/QueueSortControls.tsx

@@ -21,14 +21,25 @@ export const QueueSortControls = ({
   onSortChange,
   isMobile
 }: QueueSortControlsProps) => {
-  const handleFieldChange = (field: SortField) => {
+  const handleFieldChange = (value: string) => {
+    const validFields: SortField[] = ['created_at', 'submission_type', 'status'];
+    
+    if (!validFields.includes(value as SortField)) {
+      console.warn('⚠️ [SORT] Invalid sort field:', value);
+      return;
+    }
+    
+    const field = value as SortField;
+    console.log('🔄 [SORT] Field change:', { from: sortConfig.field, to: field });
     onSortChange({ ...sortConfig, field });
   };
 
   const handleDirectionToggle = () => {
+    const newDirection = sortConfig.direction === 'asc' ? 'desc' : 'asc';
+    console.log('🔄 [SORT] Direction toggle:', { from: sortConfig.direction, to: newDirection });
     onSortChange({
       ...sortConfig,
-      direction: sortConfig.direction === 'asc' ? 'desc' : 'asc'
+      direction: newDirection
     });
   };