fix(gtm): Increase server timeout to 600s and add missing volume mounts to prevent 502 errors

gtm-architect/server.cjs

@@ -73,6 +73,11 @@ app.get('*', (req, res) => {
 });
 
 
-app.listen(port, () => {
-    console.log(`GTM Architect server listening at http://localhost:${port}`);
+const server = app.listen(port, () => {
+    console.log(`GTM Architect server listening at http://localhost:${port} (Timeout: 600s)`);
 });
+
+// Prevent 502 Bad Gateway by increasing Node.js server timeouts to match Nginx
+server.setTimeout(600000);
+server.keepAliveTimeout = 610000;
+server.headersTimeout = 620000;