remove dead group stats and dashboard wrapper

frontend/src/api/admin/dashboard.ts

@@ -16,15 +16,6 @@ import type {
   UsageRequestType
 } from '@/types'
 
-/**
- * Get dashboard statistics
- * @returns Dashboard statistics including users, keys, accounts, and token usage
- */
-export async function getStats(): Promise<DashboardStats> {
-  const { data } = await apiClient.get<DashboardStats>('/admin/dashboard/stats')
-  return data
-}
-
 export interface TrendParams {
   start_date?: string
   end_date?: string
@@ -297,7 +288,6 @@ export async function getBatchApiKeysUsage(
 }
 
 export const dashboardAPI = {
-  getStats,
   getUsageTrend,
   getModelStats,
   getGroupStats,

frontend/src/views/admin/__tests__/UsageView.spec.ts

@@ -3,7 +3,7 @@ import { flushPromises, mount } from '@vue/test-utils'
 
 import UsageView from '../UsageView.vue'
 
-const { list, getStats, getSnapshotV2, getById } = vi.hoisted(() => {
+const { list, getStats, getSnapshotV2, getModelStats, getById } = vi.hoisted(() => {
   vi.stubGlobal('localStorage', {
     getItem: vi.fn(() => null),
     setItem: vi.fn(),
@@ -14,6 +14,7 @@ const { list, getStats, getSnapshotV2, getById } = vi.hoisted(() => {
     list: vi.fn(),
     getStats: vi.fn(),
     getSnapshotV2: vi.fn(),
+    getModelStats: vi.fn(),
     getById: vi.fn(),
   }
 })
@@ -40,6 +41,7 @@ vi.mock('@/api/admin', () => ({
     },
     dashboard: {
       getSnapshotV2,
+      getModelStats,
     },
     users: {
       getById,
@@ -111,6 +113,7 @@ describe('admin UsageView distribution metric toggles', () => {
     list.mockReset()
     getStats.mockReset()
     getSnapshotV2.mockReset()
+    getModelStats.mockReset()
     getById.mockReset()
 
     list.mockResolvedValue({
@@ -133,6 +136,11 @@ describe('admin UsageView distribution metric toggles', () => {
       models: [],
       groups: [],
     })
+    getModelStats.mockResolvedValue({
+      models: [],
+      start_date: '2026-04-19',
+      end_date: '2026-04-20',
+    })
   })
 
   afterEach(() => {