fix: restore CLI validation and test baseline (#1857)

Fixed lazy CLI helper imports for tunnel flows
Restored update command version detection
Made web test and dead-code commands run reliably

packages/web/vitest.config.ts

@@ -0,0 +1,10 @@
+import { fileURLToPath } from 'node:url';
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  resolve: {
+    alias: {
+      'bun:test': fileURLToPath(new URL('./test/bun-test-shim.ts', import.meta.url)),
+    },
+  },
+});