feat: 扩展 Rust gateway 全功能模块，新增 billing/crypto/wallet crate 及完整数据层

- 新增 aether-billing、aether-crypto、aether-wallet 独立 crate
- aether-data 扩展 repository 层：announcements、auth_modules、billing、
  candidate_selection、gemini_file_mappings、global_models、management_tokens、
  oauth_providers、proxy_nodes、quota、users、wallet 等模块
- aether-gateway 新增 api/auth/billing/control/middleware/scheduler/usage/
  video_tasks/hooks/maintenance/model_fetch/provider_transport 等功能模块
- 重构 executor decision 和 gateway state 为模块目录结构
- 新增 gateway router、frontdoor 路由层及对应测试
- Python 侧 API 路由重构，新增 compat/support 模块
- 前端 Logo 组件更新及 Provider 管理页面调整

frontend/src/views/admin/ProviderManagement.vue

@@ -241,6 +241,7 @@
   <ProviderDetailDrawer
     :open="providerDrawerOpen"
     :provider-id="selectedProviderId"
+    :initial-provider="selectedProvider"
     @update:open="providerDrawerOpen = $event"
     @edit="openEditProviderDialog"
     @toggle-status="toggleProviderStatus"
@@ -313,6 +314,10 @@ const priorityDialogOpen = ref(false)
 const priorityMode = ref<'provider' | 'global_key'>('provider')
 const providerDrawerOpen = ref(false)
 const selectedProviderId = ref<string | null>(null)
+const selectedProvider = computed<ProviderWithEndpointsSummary | null>(() => {
+  if (!selectedProviderId.value) return null
+  return providers.value.find(provider => provider.id === selectedProviderId.value) ?? null
+})
 const providerDeleteProgress = ref<ProviderDeleteProgressState | null>(null)
 let deletePollAbort: AbortController | null = null