Fix translation language badges not updating after auto-translation (#54)

Co-authored-by: hugo <hugoms@me.com>

src/renderer/App.tsx

@@ -167,6 +167,24 @@ const App: React.FC = () => {
       }) || (() => {})
     );
 
+    // Post translation events (refresh post to update availableLanguages for sidebar badges)
+    const handlePostTranslationChange = (data: unknown) => {
+      const translation = data as { translationFor?: string };
+      if (translation.translationFor) {
+        window.electronAPI?.posts.get(translation.translationFor).then((post) => {
+          if (post) {
+            updatePost((post as PostData).id, post as PostData);
+          }
+        });
+      }
+    };
+    unsubscribers.push(
+      window.electronAPI?.on('post:translationCreated', handlePostTranslationChange) || (() => {})
+    );
+    unsubscribers.push(
+      window.electronAPI?.on('post:translationUpdated', handlePostTranslationChange) || (() => {})
+    );
+
     // Media events
     unsubscribers.push(
       window.electronAPI?.on('media:imported', (media: unknown) => {

src/renderer/components/Editor/PostEditor.tsx

@@ -416,6 +416,22 @@ export const PostEditor: React.FC<PostEditorProps> = ({ postId }) => {
     });
   }, [loadTranslations]);
 
+  // Refresh translations when auto-translation completes for this post
+  useEffect(() => {
+    const handleTranslationEvent = (data: unknown) => {
+      const translation = data as { translationFor?: string };
+      if (translation.translationFor === postId) {
+        loadTranslations().catch(() => {});
+      }
+    };
+    const unsubCreated = window.electronAPI?.on('post:translationCreated', handleTranslationEvent);
+    const unsubUpdated = window.electronAPI?.on('post:translationUpdated', handleTranslationEvent);
+    return () => {
+      unsubCreated?.();
+      unsubUpdated?.();
+    };
+  }, [loadTranslations, postId]);
+
   // Debounce content for lightbox-only computations (not time-critical)
   const debouncedContent = useDebouncedValue(content, 500);