disabling uplaod documents from playground

Author: thefirehacker

Playground.html

@@ -709,7 +709,7 @@ <h3>🎮 AI Persona</h3>
       <!-- Document Management -->
       <div class="control-group">
         <label>Document Store (RAG)</label>
-        <button id="uploadDocuments" class="btn">📄 Upload Documents</button>
+        <button id="uploadDocuments" class="btn" disabled>📄 Upload Documents</button>
         <button id="manageDocuments" class="btn">📚 Manage Store</button>
         <div id="vectorStatus" class="status-indicator info">Vector Store Ready</div>
       </div>