fix: add vite-env.d.ts, remove broken lint script, clean config

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

superpowers/package.json

@@ -6,7 +6,6 @@
   "scripts": {
     "dev": "vite",
     "build": "tsc -b && vite build",
-    "lint": "eslint .",
     "preview": "vite preview",
     "test": "vitest run"
   },

superpowers/src/vite-env.d.ts

@@ -0,0 +1 @@
+/// <reference types="vite/client" />

superpowers/vite.config.ts

@@ -7,7 +7,6 @@ export default defineConfig({
   test: {
     globals: true,
     environment: "jsdom",
-    setupFiles: [],
-    passWithNoTests: true,
+
   },
 });