Merge pull request #289 from AAEE86/rust

fix(usage): 统一使用记录与仪表盘的缓存命中率计算口径

frontend/src/mocks/data.ts

@@ -197,7 +197,7 @@ export const MOCK_DASHBOARD_STATS: DashboardStatsResponse = {
     cache_read_tokens: 200000,
     cache_creation_cost: 0.25,
     cache_read_cost: 0.10,
-    cache_hit_rate: 0.35,
+    cache_hit_rate: 35.0,
     total_cache_tokens: 250000
   },
   users: {

frontend/src/utils/__tests__/date.spec.ts

@@ -0,0 +1,19 @@
+import { describe, expect, it } from 'vitest'
+import { parseDateLike } from '../date'
+
+describe('parseDateLike', () => {
+  it('parses date-only strings as local calendar dates', () => {
+    const date = parseDateLike('2026-04-12')
+
+    expect(date.getFullYear()).toBe(2026)
+    expect(date.getMonth()).toBe(3)
+    expect(date.getDate()).toBe(12)
+  })
+
+  it('keeps timestamp strings delegated to native Date parsing', () => {
+    const date = parseDateLike('2026-04-12T15:30:00Z')
+
+    expect(Number.isNaN(date.getTime())).toBe(false)
+    expect(date.toISOString()).toBe('2026-04-12T15:30:00.000Z')
+  })
+})

frontend/src/utils/date.ts

@@ -0,0 +1,15 @@
+const DATE_ONLY_PATTERN = /^(\d{4})-(\d{2})-(\d{2})$/
+
+/**
+ * 将 `YYYY-MM-DD` 解析为本地时区日期，避免浏览器按 UTC 解析后串天。
+ * 其他带时间/时区的信息仍交给原生 Date 处理。
+ */
+export function parseDateLike(dateString: string): Date {
+  const matched = DATE_ONLY_PATTERN.exec(dateString)
+  if (!matched) {
+    return new Date(dateString)
+  }
+
+  const [, year, month, day] = matched
+  return new Date(Number(year), Number(month) - 1, Number(day))
+}

frontend/src/views/shared/Dashboard.vue

@@ -819,6 +819,7 @@ import {
   DollarSign,
   Key,
   Hash,
+  Zap,
   Bell,
   AlertCircle,
   AlertTriangle,
@@ -830,6 +831,7 @@ import {
   Shuffle
 } from 'lucide-vue-next'
 import { formatTokens, formatCurrency } from '@/utils/format'
+import { parseDateLike } from '@/utils/date'
 import { marked } from 'marked'
 import { sanitizeMarkdown } from '@/utils/sanitize'
 import type { ChartData, ChartOptions, ChartDataset, TooltipItem } from 'chart.js'
@@ -1000,7 +1002,7 @@ const selectedAnnouncement = ref<Announcement | null>(null)
 const detailDialogOpen = ref(false)
 
 const iconMap: Record<string, unknown> = {
-  Users, Activity, TrendingUp, DollarSign, Key, Hash, Database
+  Users, Activity, TrendingUp, DollarSign, Key, Hash, Zap, Database
 }
 
 // 空状态占位卡片
@@ -1315,7 +1317,10 @@ onBeforeUnmount(() => {
 async function loadDashboardData() {
   loading.value = true
   try {
-    const statsData = await dashboardApi.getStats()
+    const statsData = await dashboardApi.getStats({
+      timezone: dailyTimeRange.value.timezone,
+      tz_offset_minutes: dailyTimeRange.value.tz_offset_minutes
+    })
     stats.value = statsData.stats.map(stat => ({
       ...stat,
       icon: iconMap[stat.icon] || Activity
@@ -1382,7 +1387,7 @@ function scheduleDailyStatsLoad() {
 watch(dailyTimeRange, scheduleDailyStatsLoad, { deep: true })
 
 function formatDate(dateString: string): string {
-  const date = new Date(dateString)
+  const date = parseDateLike(dateString)
   const today = new Date()
   const yesterday = new Date(today)
   yesterday.setDate(yesterday.getDate() - 1)
@@ -1392,7 +1397,7 @@ function formatDate(dateString: string): string {
 }
 
 function formatDateForChart(dateString: string): string {
-  const date = new Date(dateString)
+  const date = parseDateLike(dateString)
   const today = new Date()
   const yesterday = new Date(today)
   yesterday.setDate(yesterday.getDate() - 1)