Improve form validation and image handling for entities

Refactor validation logic for 'founded_year' in multiple form components, enhance image cleanup in `EntityMultiImageUploader`, update `useEntityVersions` to prevent race conditions, improve error handling for recent searches in `useSearch`, refine rate limiting logic in `detect-location` Supabase function, and update CORS configuration for `upload-image` Supabase function.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: b9af4867-23a7-43cc-baeb-4a97f66b4150
Replit-Commit-Checkpoint-Type: intermediate_checkpoint

src/components/upload/EntityMultiImageUploader.tsx

@@ -57,6 +57,24 @@ export function EntityMultiImageUploader({
     }
   }, [mode, entityId, entityType]);
 
+  // Cleanup blob URLs when component unmounts or images change
+  useEffect(() => {
+    const currentImages = value.uploaded;
+    
+    return () => {
+      // Revoke all blob URLs on cleanup
+      currentImages.forEach(image => {
+        if (image.isLocal && image.url.startsWith('blob:')) {
+          try {
+            URL.revokeObjectURL(image.url);
+          } catch (error) {
+            console.error('Error revoking object URL:', error);
+          }
+        }
+      });
+    };
+  }, [value.uploaded]);
+
   const fetchEntityPhotos = async () => {
     setLoadingPhotos(true);
     try {