sudo commands through ephemeral terminal

src/servers/api/terminal/websocket.ts

@@ -236,20 +236,28 @@ const sidecarAlive = async (port: number): Promise<boolean> => {
   }
 };
 
-const startHostSidecar = async () => {
-  if (await sidecarAlive(HOST_SIDECAR_PORT)) {
-    console.log(`[terminal] host sidecar already running on port ${HOST_SIDECAR_PORT}`);
-    return;
+const killSidecarOnPort = (port: number) => {
+  try {
+    const result = Bun.spawnSync({ cmd: ['fuser', '-k', `${port}/tcp`], stdout: 'ignore', stderr: 'ignore' });
+    if (result.exitCode === 0) console.log(`[terminal] killed stale sidecar on port ${port}`);
+  } catch {
+    // fuser not available or failed
   }
+};
 
+const startHostSidecar = async () => {
   if (hostSidecarProcess) {
     hostSidecarProcess.kill();
     await hostSidecarProcess.exited.catch(() => {});
     hostSidecarProcess = null;
   }
+
+  killSidecarOnPort(HOST_SIDECAR_PORT);
+  await new Promise((resolve) => setTimeout(resolve, 200));
+
   const sidecarPath = fileURLToPath(new URL('./pty-sidecar.mjs', import.meta.url));
   hostSidecarProcess = Bun.spawn({
-    cmd: ['bun', sidecarPath],
+    cmd: ['node', sidecarPath],
     env: { ...process.env, TERMINAL_PTY_PORT: String(HOST_SIDECAR_PORT) },
     stdout: 'inherit',
     stderr: 'inherit',
@@ -323,6 +331,7 @@ export const terminalWebsocket = {
       sidecar.send(
         JSON.stringify({
           type: 'init',
+          host: true,
           sessionId: ws.data.sessionId ?? `host-${ws.data.userId}`,
           shell: { command: process.env.SHELL ?? '/bin/zsh', args: ['-i'] },
           cwd: resolveCwd(process.env.HOME!, ws.data.cwd),