fix(cli): clean terminal output for TUI apps

- Silence Vite server logs (logLevel: 'silent')
- Intercept console.log/info/warn/error/debug in child process to
  suppress [vite] and [Vue warn] noise from HMR client
- Add 3s startup grace period to ignore initial reload requests
  (prevents double-spawn on first WS connection)
- Clear screen before spawning child process

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/cli/src/dev.ts

@@ -17,6 +17,7 @@ export async function dev(entry?: string) {
 
   const server = await createServer({
     plugins: [vueTuiDevPlugin({ entry })],
+    logLevel: "silent",
   });
 
   await server.listen();
@@ -55,8 +56,16 @@ export async function dev(entry?: string) {
 
   pm.spawn();
 
+  // Ignore reload requests during startup — the initial WS connection
+  // may trigger vite:beforeFullReload before the app is ready
+  let acceptReloads = false;
+  setTimeout(() => {
+    acceptReloads = true;
+  }, 3000);
+
   // Listen for full reload requests from child
   server.hot.on("vue-tui:request-reload", async () => {
+    if (!acceptReloads) return;
     const newPath = await extractBundle(clientEnv.memoryFiles, outDir);
     pm.setBundlePath(newPath);
     pm.restart();

packages/cli/src/process-manager.ts

@@ -9,7 +9,22 @@ export interface ProcessManagerOptions {
 }
 
 const loaderUrl = new URL("./hmr-loader.mjs", import.meta.url).href;
-const loaderBootstrap = `data:text/javascript,import{register}from"node:module";register(${JSON.stringify(loaderUrl)})`;
+
+// Bootstrap script: register HMR loader hooks + silence Vite/Vue console noise
+const loaderBootstrap = `data:text/javascript,${encodeURIComponent(`
+import{register}from"node:module";
+register(${JSON.stringify(loaderUrl)});
+
+// Intercept all console methods to suppress Vite HMR client and Vue warn noise
+for (const method of ["log", "info", "warn", "error", "debug"]) {
+  const orig = console[method];
+  console[method] = (...args) => {
+    const first = typeof args[0] === "string" ? args[0] : "";
+    if (first.includes("[vite]") || first.includes("[Vue warn]")) return;
+    orig.apply(console, args);
+  };
+}
+`)}`;
 
 export function createProcessManager(options: ProcessManagerOptions) {
   let child: ChildProcess | null = null;