fix(usage): 修复缓存创建 token 展示并在总量中计入缓存组件

- gateway/admin 用量载荷在 cache_creation_input_tokens 为 0 时回填 ephemeral_5m/1h 合计
- 标准化用量写入时将 cache_creation/cache_read token 计入 total_tokens
- 前端列表与轮询同步新增分类字段，修复缓存 token 列显示

frontend/src/api/me.ts

@@ -61,6 +61,8 @@ export interface UsageRecordDetail {
   is_stream: boolean
   created_at: string
   cache_creation_input_tokens?: number
+  cache_creation_ephemeral_5m_input_tokens?: number
+  cache_creation_ephemeral_1h_input_tokens?: number
   cache_read_input_tokens?: number
   status_code: number
   error_message?: string
@@ -284,8 +286,11 @@ export const meApi = {
       id: string
       status: 'pending' | 'streaming' | 'completed' | 'failed' | 'cancelled'
       input_tokens: number
+      effective_input_tokens?: number | null
       output_tokens: number
       cache_creation_input_tokens?: number | null
+      cache_creation_ephemeral_5m_input_tokens?: number | null
+      cache_creation_ephemeral_1h_input_tokens?: number | null
       cache_read_input_tokens?: number | null
       cost: number
       actual_cost?: number | null
@@ -296,6 +301,7 @@ export const meApi = {
       endpoint_api_format?: string | null
       has_format_conversion?: boolean | null
       has_fallback?: boolean | null
+      target_model?: string | null
     }>
   }> {
     const params = ids ? { ids } : {}

frontend/src/api/usage.ts

@@ -13,6 +13,8 @@ export interface UsageRecord {
   effective_input_tokens?: number
   output_tokens: number
   cache_creation_input_tokens?: number
+  cache_creation_ephemeral_5m_input_tokens?: number
+  cache_creation_ephemeral_1h_input_tokens?: number
   cache_read_input_tokens?: number
   total_tokens: number
   cost?: number
@@ -295,6 +297,8 @@ export const usageApi = {
       effective_input_tokens?: number | null
       output_tokens: number
       cache_creation_input_tokens?: number | null
+      cache_creation_ephemeral_5m_input_tokens?: number | null
+      cache_creation_ephemeral_1h_input_tokens?: number | null
       cache_read_input_tokens?: number | null
       cost: number
       actual_cost?: number | null