reiniciar por room, finished ya no estorba, control total desde el dashboard

server/src/adminApi.ts

@@ -527,14 +527,17 @@ adminRouter.get("/admin/uuids-with-names", async (req: Request, res: Response) =
 
 // SSE endpoint for real-time dashboard updates
 adminRouter.get("/dashboard-stream", (req: Request, res: Response) => {
-  // Set SSE headers
+  // Set SSE headers (hardened for reverse proxies)
   res.writeHead(200, {
     'Content-Type': 'text/event-stream',
-    'Cache-Control': 'no-cache',
+    'Cache-Control': 'no-cache, no-transform', // avoid proxy transformations
     'Connection': 'keep-alive',
     'Access-Control-Allow-Origin': '*',
-    'Access-Control-Allow-Headers': 'Cache-Control'
+    'Access-Control-Allow-Headers': 'Cache-Control',
+    'X-Accel-Buffering': 'no' // hint nginx to disable buffering
   });
+  // Flush headers immediately so proxies establish the stream
+  try { (res as any).flushHeaders?.(); } catch {}
 
   // Add client to our set
   sseClients.add(res);