remove seed directory, clean up provisioning and sync modules

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/servers/sidecar/vnc/vnc-manager.ts

@@ -1,7 +1,7 @@
 import { existsSync, mkdirSync } from 'node:fs';
 import { join } from 'node:path';
 import type { VncStartParams, VncSessionInfo } from '../protocol';
-import { getHomeDirForRole, toShellUsername } from '@@/data-path';
+import { getHomeDirForRole } from '@@/data-path';
 
 type VncSession = {
   email: string;
@@ -87,7 +87,6 @@ export async function startSession(params: VncStartParams): Promise<{ port: numb
     sessions.delete(params.email);
   }
 
-  const shellUsername = toShellUsername(params.username, params.email);
   const homeDir = getHomeDirForRole(params.email, params.role);
   const resolution = params.resolution ?? '1920x1080';
   const display = findFreeDisplay();
@@ -96,21 +95,9 @@ export async function startSession(params: VncStartParams): Promise<{ port: numb
   // Lazy-provision VNC environment if missing
   await ensureVncEnv(homeDir);
 
-  // Spawn VNC server as the target user
+  // Spawn VNC server
   const proc = Bun.spawn({
-    cmd: [
-      'sudo',
-      '-u',
-      shellUsername,
-      'vncserver',
-      `:${display}`,
-      '-geometry',
-      resolution,
-      '-depth',
-      '24',
-      '-localhost',
-      'yes',
-    ],
+    cmd: ['vncserver', `:${display}`, '-geometry', resolution, '-depth', '24', '-localhost', 'yes'],
     env: { ...process.env, HOME: homeDir },
     stdout: 'pipe',
     stderr: 'pipe',
@@ -130,7 +117,7 @@ export async function startSession(params: VncStartParams): Promise<{ port: numb
     pid = parseInt(content.trim(), 10) || 0;
   }
 
-  sessions.set(params.email, { email: params.email, username: params.username, display, port, pid });
+  sessions.set(params.email, { email: params.email, username: params.username ?? '', display, port, pid });
   console.log(`[vnc] started session for ${params.email} on :${display} (port ${port}, pid ${pid})`);
 
   return { port, display };
@@ -140,11 +127,10 @@ export function stopSession(email: string): void {
   const session = sessions.get(email);
   if (!session) return;
 
-  const shellUsername = toShellUsername(session.username, email);
   const homeDir = getHomeDirForRole(email, null);
 
   Bun.spawnSync({
-    cmd: ['sudo', '-u', shellUsername, 'vncserver', '-kill', `:${session.display}`],
+    cmd: ['vncserver', '-kill', `:${session.display}`],
     env: { ...process.env, HOME: homeDir },
     stdout: 'ignore',
     stderr: 'ignore',