Add package-lock.json and fix TypeScript build errors

- web/frontend/package.json: remove invalid @nuxtjs/tailwindcss (Nuxt-only package)
- web/frontend/src/router/index.ts: prefix unused 'from' param with _
- web/frontend/src/views/ApiKeys.vue: remove unused 'Check' import
- .gitignore: add *.tsbuildinfo, vite.config.js, vite.config.d.ts
- web/frontend/package-lock.json: generated via npm install (required for CI npm ci)

web/frontend/src/router/index.ts

@@ -46,7 +46,7 @@ const router = createRouter({
   routes,
 })
 
-router.beforeEach((to, from, next) => {
+router.beforeEach((to, _from, next) => {
   const authStore = useAuthStore()
 
   if (to.meta.requiresAuth && !authStore.isAuthenticated) {

web/frontend/src/views/ApiKeys.vue

@@ -1,7 +1,7 @@
 <script setup lang="ts">
 import { ref, onMounted } from 'vue'
 import { api } from '@/lib/api'
-import { Plus, Trash2, Copy, Check } from 'lucide-vue-next'
+import { Plus, Trash2, Copy } from 'lucide-vue-next'
 
 interface ApiKey {
   id: string