feat(clipping): add title requirement check

frontend/src/components/video/MetadataBox.tsx

@@ -9,9 +9,12 @@ type Props = {
 
 const MetadataBox = ({ setMetadata, className }: Props) => (
     <div className={clsx("flex flex-col content-between p-6 gap-2", className)}>
-        <p className="w-full font-body text-text-strong font-bold text-sm">Title</p>
+        <p className="w-full font-body text-text-strong font-bold text-sm">
+            Title <span className="text-error">*</span>
+        </p>
         <input
             type="text"
+            required
             placeholder="Enter title"
             onChange={(e) => setMetadata(prev => ({ ...prev, title: e.target.value }))}
             className="border border-hairline bg-fields rounded-md w-full p-2 text-sm focus:outline-none focus:ring-2 focus:ring-muted transition-colors"

frontend/src/pages/ClipEdit.tsx

@@ -64,12 +64,18 @@ const ClipEdit = () => {
     const sendData = async () => {
         if (!localFile || uploading) return;
 
+        const title = outputMetadata.title.trim();
+        if (!title) {
+            setError('A title is required before exporting.');
+            return;
+        }
+
         setUploading(true);
         setError(null);
 
         let jobId: string;
         try {
-            jobId = await compress(localFile, outputMetadata);
+            jobId = await compress(localFile, { ...outputMetadata, title });
             setUploadedId(jobId);
         } catch (err: unknown) {
             setError(`Failed to start compression: ${err instanceof Error ? err.message : 'Unknown error'}`);