Fix: Update Hugging Face API to use commit endpoint instead of deprecated upload endpoint

src/lib/huggingface.ts

@@ -15,7 +15,7 @@ export interface HuggingFaceFileResult {
 const HF_API_BASE = 'https://huggingface.co/api';
 
 /**
- * Upload a file to Hugging Face Hub
+ * Upload a file to Hugging Face Hub using the commit endpoint
  */
 export async function uploadToHuggingFace(
   file: Blob,
@@ -30,24 +30,39 @@ export async function uploadToHuggingFace(
     throw new Error('Hugging Face credentials not configured. Set HF_TOKEN and HF_REPO_ID');
   }
 
-  // Convert Blob to Buffer
+  // Convert Blob to base64 for the commit API
   const arrayBuffer = await file.arrayBuffer();
   const buffer = Buffer.from(arrayBuffer);
+  const base64Content = buffer.toString('base64');
 
   // Determine file extension
   const ext = fileName.split('.').pop() || 'bin';
   const pathInRepo = `files/${fileId}.${ext}`;
 
-  // Upload file using HF Hub API
-  const uploadUrl = `${HF_API_BASE}/${repoType === 'dataset' ? 'datasets' : 'models'}/${repoId}/upload/${pathInRepo}`;
+  // Use the commit endpoint (new API)
+  // Format: POST /api/{repo_type}s/{repo_id}/commit/{revision}
+  const repoTypePlural = repoType === 'dataset' ? 'datasets' : 'models';
+  const commitUrl = `${HF_API_BASE}/${repoTypePlural}/${repoId}/commit/main`;
 
-  const response = await fetch(uploadUrl, {
+  // The commit API expects operations in a specific format
+  const commitData = {
+    operations: [
+      {
+        operation: 'add',
+        path: pathInRepo,
+        content: base64Content,
+      }
+    ],
+    commit_message: `Upload ${fileName}`,
+  };
+
+  const response = await fetch(commitUrl, {
     method: 'POST',
     headers: {
       'Authorization': `Bearer ${token}`,
-      'Content-Type': 'application/octet-stream',
+      'Content-Type': 'application/json',
     },
-    body: buffer,
+    body: JSON.stringify(commitData),
   });
 
   if (!response.ok) {