merge: 合并 main 分支到 test，解决 config 和 modelWhitelist 冲突

- config.go: 保留 Sora 配置，合入 SubscriptionCache 配置
- useModelWhitelist.ts: 同时保留 soraModels 和 antigravityModels

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

frontend/src/components/common/ConfirmDialog.vue

@@ -2,6 +2,7 @@
   <BaseDialog :show="show" :title="title" width="narrow" @close="handleCancel">
     <div class="space-y-4">
       <p class="text-sm text-gray-600 dark:text-gray-400">{{ message }}</p>
+      <slot></slot>
     </div>
 
     <template #footer>

frontend/src/components/common/VersionBadge.vue

@@ -491,7 +491,7 @@ async function checkServiceAndReload() {
 
   for (let i = 0; i < maxRetries; i++) {
     try {
-      const response = await fetch('/api/health', {
+      const response = await fetch('/health', {
         method: 'GET',
         cache: 'no-cache'
       })