fix: set idle timeout to 255 seconds in MCP server to prevent premature shutdown

packages/mcp-server/src/index.ts

@@ -5,7 +5,7 @@ const PORT = process.env.MCP_PORT || 4006;
 
 const server = Bun.serve({
   port: PORT as number | string,
-  idleTimeout: 0,
+  idleTimeout: 255, // 255 seconds (max allowed)
   routes: {
     // MCP metadata discovery endpoint
     "/.well-known/mcp/server-card.json": new Response(