feat(Sora): 完成Sora网关接入与媒体能力

新增 Sora 网关路由、账号调度与同步服务\n补充媒体代理与签名 URL、模型列表动态拉取\n完善计费配置、前端支持与相关测试

frontend/src/components/common/GroupBadge.vue

@@ -97,6 +97,9 @@ const labelClass = computed(() => {
   if (props.platform === 'gemini') {
     return `${base} bg-blue-200/60 text-blue-800 dark:bg-blue-800/40 dark:text-blue-300`
   }
+  if (props.platform === 'sora') {
+    return `${base} bg-rose-200/60 text-rose-800 dark:bg-rose-800/40 dark:text-rose-300`
+  }
   return `${base} bg-violet-200/60 text-violet-800 dark:bg-violet-800/40 dark:text-violet-300`
 })
 
@@ -118,6 +121,11 @@ const badgeClass = computed(() => {
       ? 'bg-blue-100 text-blue-700 dark:bg-blue-900/30 dark:text-blue-400'
       : 'bg-sky-50 text-sky-700 dark:bg-sky-900/20 dark:text-sky-400'
   }
+  if (props.platform === 'sora') {
+    return isSubscription.value
+      ? 'bg-rose-100 text-rose-700 dark:bg-rose-900/30 dark:text-rose-400'
+      : 'bg-rose-50 text-rose-700 dark:bg-rose-900/20 dark:text-rose-400'
+  }
   // Fallback: original colors
   return isSubscription.value
     ? 'bg-violet-100 text-violet-700 dark:bg-violet-900/30 dark:text-violet-400'