fix: update API endpoint for blog post editing and improve cover image handling in EditPost component

src/blog/api.ts

@@ -119,7 +119,7 @@ export async function createBlogPost(
  * Update an existing blog post
  */
 export async function updateBlogPost(payload: UpdatePostPayload): Promise<UpdatePostResponse> {
-  const response = await apiPost(`${API_BASE}/post/update`, payload);
+  const response = await apiPost(`${API_BASE}/post/edit`, payload);
 
   if (!response.ok) {
     throw new Error(`Failed to update post: ${response.statusText}`);

src/pages/EditPost.tsx

@@ -108,20 +108,20 @@ function EditPost() {
 
     const content = editorRef.current.getEditorState();
 
-    if (!coverImageKey) {
-      error('Please upload a cover image');
-      return;
-    }
-
     setIsSubmitting(true);
 
     try {
-      await updateBlogPost({
+      const payload: Parameters<typeof updateBlogPost>[0] = {
         postId,
         title: title.trim(),
         content,
-        coverImageKey,
-      });
+      };
+
+      if (coverImageKey) {
+        payload.coverImageKey = coverImageKey;
+      }
+
+      await updateBlogPost(payload);
 
       success('Blog post updated successfully!', 2000);