Migrate to Vite+ (vite-plus) unified toolchain

Replace Vite/Vitest with vite-plus, update WASM loading to native Vite 8
?init pattern, switch React compiler to @rolldown/plugin-babel, and
migrate git hooks from husky to vite-hooks.

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

plugins/auth-oauth2/package.json

@@ -12,7 +12,7 @@
   "scripts": {
     "build": "yaakcli build",
     "dev": "yaakcli dev",
-    "test": "vitest --run tests"
+    "test": "vp test --run tests"
   },
   "dependencies": {
     "jsonwebtoken": "^9.0.2"

plugins/auth-oauth2/tests/util.test.ts

@@ -1,4 +1,4 @@
-import { describe, expect, test } from 'vitest';
+import { describe, expect, test } from 'vite-plus/test';
 import { extractCode } from '../src/util';
 
 describe('extractCode', () => {