Fix: Resolve TypeScript errors

src/components/upload/UppyPhotoSubmissionUpload.tsx

@@ -110,6 +110,9 @@ export function UppyPhotoSubmissionUpload({
             const { uploadURL, id: cloudflareId } = uploadData;
 
             // Upload file to Cloudflare
+            if (!photo.file) {
+              throw new Error('Photo file is missing');
+            }
             const formData = new FormData();
             formData.append('file', photo.file);