refactor(Index.tsx): improve tag generation logic and Ollama status handling

src/pages/Index.tsx

@@ -368,8 +368,17 @@ $current`);
         .map((tag: string) => tag.trim())
         .filter((tag: string) => tag.length > 0);
 
-      addDebugInfo(`Generated ${tags.length} tags: ${tags.join(', ')}`);
-      return tags;
+      // Filter out tags that already exist in the content
+      const filteredTags = tags.filter((tag: string) => {
+        const tagExists = content.toLowerCase().includes(tag.toLowerCase());
+        if (tagExists) {
+          addDebugInfo(`Removing tag "${tag}" - already exists in content`);
+        }
+        return !tagExists;
+      });
+
+      addDebugInfo(`Generated ${tags.length} tags, filtered to ${filteredTags.length}: ${filteredTags.join(', ')}`);
+      return filteredTags;
 
       // Last resort: return empty array
       addDebugInfo('Could not extract tags from Ollama response');