fix(usage): unify OpenAI Live and WebSocket records

frontend/src/features/usage/composables/__tests__/useUsageData.spec.ts

@@ -143,11 +143,12 @@ describe('useUsageData', () => {
 
     await loadRecords(
       { page: 2, pageSize: 20 },
-      { status: 'websocket' },
+      { api_format: 'codex:live', status: 'websocket' },
       { preset: 'today', tz_offset_minutes: 0 },
     )
 
     expect(meGetUsageMock).toHaveBeenCalledWith(expect.objectContaining({
+      api_format: 'codex:live',
       status: 'websocket',
       limit: 20,
       offset: 20,

frontend/src/features/usage/composables/useUsageData.ts

@@ -393,6 +393,9 @@ export function useUsageData(options: UseUsageDataOptions) {
       if (filters?.status) {
         params.status = filters.status
       }
+      if (filters?.api_format) {
+        params.api_format = filters.api_format
+      }
 
       if (isAdminPage.value) {
         // 管理员页面：使用管理员 API
@@ -405,9 +408,6 @@ export function useUsageData(options: UseUsageDataOptions) {
         if (filters?.provider) {
           params.provider = filters.provider
         }
-        if (filters?.api_format) {
-          params.api_format = filters.api_format
-        }
         if (filters?.client_family) {
           params.client_family = filters.client_family
         }