Update app.py

app.py

@@ -319,6 +319,7 @@ async def get_proxy():
                     } catch (error) {
                         addMessageEntry('error', 'system', 'proxy', `Error: ${error.message}`);
                         const errorResponse = {
+                            request_id: msg.request_id,  // Critical addition
                             content: `Error: ${error.message}`,
                             source: 'proxy',
                             destination: msg.source