fix(admin-spa): 修复仪表板图表时区处理问题

- 修复前端时间计算逻辑，正确处理不同时区用户的时间范围选择
- 添加系统时区信息到dashboard API响应
- 修改getSystemTimezoneDay函数，确保正确处理系统时区的日期转换
- 修复"昨天"和"前天"时间范围计算，基于系统时区而非用户时区
- 添加后端调试日志以便追踪时间转换问题

问题描述：
- 选择"昨天"时显示29号7:00到30号6:00（错误）
- 选择"近24小时"时显示29号17:00到30号17:00（错误）

修复后：
- "昨天"正确显示完整一天（如29号0:00到29号23:59）
- "近24小时"正确显示从当前时间往前24小时
- 支持所有时区的用户，不再硬编码UTC+8偏移

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/routes/admin.js

@@ -1293,7 +1293,8 @@ router.get('/dashboard', authenticateAdmin, async (req, res) => {
         claudeAccountsHealthy: activeClaudeAccounts > 0,
         geminiAccountsHealthy: activeGeminiAccounts > 0,
         uptime: process.uptime()
-      }
+      },
+      systemTimezone: config.system.timezoneOffset || 8
     };
 
     res.json({ success: true, data: dashboard });
@@ -1452,6 +1453,14 @@ router.get('/usage-trend', authenticateAdmin, async (req, res) => {
         // 使用自定义时间范围
         startTime = new Date(startDate);
         endTime = new Date(endDate);
+        
+        // 调试日志
+        logger.info(`📊 Usage trend hour granularity - received times:`);
+        logger.info(`  startDate (raw): ${startDate}`);
+        logger.info(`  endDate (raw): ${endDate}`);
+        logger.info(`  startTime (parsed): ${startTime.toISOString()}`);
+        logger.info(`  endTime (parsed): ${endTime.toISOString()}`);
+        logger.info(`  System timezone offset: ${config.system.timezoneOffset || 8}`);
       } else {
         // 默认最近24小时
         endTime = new Date();
@@ -1471,7 +1480,8 @@ router.get('/usage-trend', authenticateAdmin, async (req, res) => {
       currentHour.setMinutes(0, 0, 0);
       
       while (currentHour <= endTime) {
-        // 使用时区转换后的时间来生成键
+        // 注意：前端发送的时间已经是UTC时间，不需要再次转换
+        // 直接从currentHour生成对应系统时区的日期和小时
         const tzCurrentHour = redis.getDateInTimezone(currentHour);
         const dateStr = redis.getDateStringInTimezone(currentHour);
         const hour = String(tzCurrentHour.getUTCHours()).padStart(2, '0');
@@ -1545,11 +1555,11 @@ router.get('/usage-trend', authenticateAdmin, async (req, res) => {
           hourCost = costResult.costs.total;
         }
         
-        // 格式化时间标签
+        // 格式化时间标签 - 使用系统时区的显示
-        const tzDate = redis.getDateInTimezone(currentHour);
+        const tzDateForLabel = redis.getDateInTimezone(currentHour);
-        const month = String(tzDate.getUTCMonth() + 1).padStart(2, '0');
+        const month = String(tzDateForLabel.getUTCMonth() + 1).padStart(2, '0');
-        const day = String(tzDate.getUTCDate()).padStart(2, '0');
+        const day = String(tzDateForLabel.getUTCDate()).padStart(2, '0');
-        const hourStr = String(tzDate.getUTCHours()).padStart(2, '0');
+        const hourStr = String(tzDateForLabel.getUTCHours()).padStart(2, '0');
         
         trendData.push({
           // 对于小时粒度，只返回hour字段，不返回date字段

web/admin-spa/dist/index.html

@@ -18,7 +18,7 @@
   <link rel="preconnect" href="https://cdnjs.cloudflare.com" crossorigin>
   <link rel="dns-prefetch" href="https://cdn.jsdelivr.net">
   <link rel="dns-prefetch" href="https://cdnjs.cloudflare.com">
-  <script type="module" crossorigin src="/admin-next/assets/index-8QtnjTcX.js"></script>
+  <script type="module" crossorigin src="/admin-next/assets/index-B6gXCBSA.js"></script>
   <link rel="modulepreload" crossorigin href="/admin-next/assets/vue-vendor-CKToUHZx.js">
   <link rel="modulepreload" crossorigin href="/admin-next/assets/vendor-BDiMbLwQ.js">
   <link rel="modulepreload" crossorigin href="/admin-next/assets/element-plus-B8Fs_0jW.js">

web/admin-spa/src/stores/dashboard.js

@@ -27,7 +27,8 @@ export const useDashboardStore = defineStore('dashboard', () => {
     systemRPM: 0,
     systemTPM: 0,
     systemStatus: '正常',
-    uptime: 0
+    uptime: 0,
+    systemTimezone: 8 // 默认 UTC+8
   })
   
   const costsData = ref({
@@ -81,6 +82,41 @@ export const useDashboardStore = defineStore('dashboard', () => {
     }
   })
   
+  // 辅助函数：基于系统时区计算时间
+  function getDateInSystemTimezone(date = new Date()) {
+    const offset = dashboardData.value.systemTimezone || 8
+    // 将本地时间转换为UTC时间，然后加上系统时区偏移
+    const utcTime = date.getTime() + (date.getTimezoneOffset() * 60000)
+    return new Date(utcTime + (offset * 3600000))
+  }
+  
+  // 辅助函数：获取系统时区某一天的起止UTC时间
+  // 输入：系统时区的日期（使用getDateInSystemTimezone转换后的）
+  // 输出：对应的UTC时间
+  function getSystemTimezoneDay(systemTzDate, startOfDay = true) {
+    const offset = dashboardData.value.systemTimezone || 8
+    
+    // 使用UTC方法获取系统时区日期的年月日
+    const year = systemTzDate.getUTCFullYear()
+    const month = systemTzDate.getUTCMonth()
+    const day = systemTzDate.getUTCDate()
+    
+    // 创建一个新的Date对象
+    const result = new Date()
+    
+    if (startOfDay) {
+      // 设置为系统时区的0点（UTC时间）
+      result.setUTCFullYear(year, month, day)
+      result.setUTCHours(0 - offset, 0, 0, 0)
+    } else {
+      // 设置为系统时区的23:59:59.999（UTC时间）
+      result.setUTCFullYear(year, month, day)
+      result.setUTCHours(23 - offset, 59, 59, 999)
+    }
+    
+    return result
+  }
+  
   // 方法
   async function loadDashboardData() {
     loading.value = true
@@ -118,7 +154,8 @@ export const useDashboardStore = defineStore('dashboard', () => {
           systemRPM: systemAverages.rpm || 0,
           systemTPM: systemAverages.tpm || 0,
           systemStatus: systemHealth.redisConnected ? '正常' : '异常',
-          uptime: systemHealth.uptime || 0
+          uptime: systemHealth.uptime || 0,
+          systemTimezone: dashboardResponse.data.systemTimezone || 8
         }
       }
       
@@ -161,28 +198,20 @@ export const useDashboardStore = defineStore('dashboard', () => {
                 startTime = new Date(now.getTime() - 24 * 60 * 60 * 1000)
                 break
               case 'yesterday':
-                // 昨天：使用UTC时间，避免时区双重转换
+                // 昨天：基于系统时区的昨天
-                startTime = new Date(now)
+                const systemNow = getDateInSystemTimezone(now)
-                startTime.setUTCDate(now.getUTCDate() - 1)
+                const yesterday = new Date(systemNow)
-                startTime.setUTCHours(0, 0, 0, 0)
+                yesterday.setUTCDate(yesterday.getUTCDate() - 1)
-                endTime = new Date(startTime)
+                startTime = getSystemTimezoneDay(yesterday, true)
-                endTime.setUTCHours(23, 59, 59, 999)
+                endTime = getSystemTimezoneDay(yesterday, false)
-                
-                // 由于后端会加8小时，我们需要减去8小时
-                startTime = new Date(startTime.getTime() - 8 * 60 * 60 * 1000)
-                endTime = new Date(endTime.getTime() - 8 * 60 * 60 * 1000)
                 break
               case 'dayBefore':
-                // 前天：使用UTC时间
+                // 前天：基于系统时区的前天
-                startTime = new Date(now)
+                const systemNow2 = getDateInSystemTimezone(now)
-                startTime.setUTCDate(now.getUTCDate() - 2)
+                const dayBefore = new Date(systemNow2)
-                startTime.setUTCHours(0, 0, 0, 0)
+                dayBefore.setUTCDate(dayBefore.getUTCDate() - 2)
-                endTime = new Date(startTime)
+                startTime = getSystemTimezoneDay(dayBefore, true)
-                endTime.setUTCHours(23, 59, 59, 999)
+                endTime = getSystemTimezoneDay(dayBefore, false)
-                
-                // 由于后端会加8小时，我们需要减去8小时
-                startTime = new Date(startTime.getTime() - 8 * 60 * 60 * 1000)
-                endTime = new Date(endTime.getTime() - 8 * 60 * 60 * 1000)
                 break
               default:
                 // 默认近24小时
@@ -249,28 +278,20 @@ export const useDashboardStore = defineStore('dashboard', () => {
                 startTime = new Date(now.getTime() - 24 * 60 * 60 * 1000)
                 break
               case 'yesterday':
-                // 昨天：使用UTC时间，避免时区双重转换
+                // 昨天：基于系统时区的昨天
-                startTime = new Date(now)
+                const systemNow3 = getDateInSystemTimezone(now)
-                startTime.setUTCDate(now.getUTCDate() - 1)
+                const yesterday = new Date(systemNow3)
-                startTime.setUTCHours(0, 0, 0, 0)
+                yesterday.setUTCDate(yesterday.getUTCDate() - 1)
-                endTime = new Date(startTime)
+                startTime = getSystemTimezoneDay(yesterday, true)
-                endTime.setUTCHours(23, 59, 59, 999)
+                endTime = getSystemTimezoneDay(yesterday, false)
-                
-                // 由于后端会加8小时，我们需要减去8小时
-                startTime = new Date(startTime.getTime() - 8 * 60 * 60 * 1000)
-                endTime = new Date(endTime.getTime() - 8 * 60 * 60 * 1000)
                 break
               case 'dayBefore':
-                // 前天：使用UTC时间
+                // 前天：基于系统时区的前天
-                startTime = new Date(now)
+                const systemNow4 = getDateInSystemTimezone(now)
-                startTime.setUTCDate(now.getUTCDate() - 2)
+                const dayBefore = new Date(systemNow4)
-                startTime.setUTCHours(0, 0, 0, 0)
+                dayBefore.setUTCDate(dayBefore.getUTCDate() - 2)
-                endTime = new Date(startTime)
+                startTime = getSystemTimezoneDay(dayBefore, true)
-                endTime.setUTCHours(23, 59, 59, 999)
+                endTime = getSystemTimezoneDay(dayBefore, false)
-                
-                // 由于后端会加8小时，我们需要减去8小时
-                startTime = new Date(startTime.getTime() - 8 * 60 * 60 * 1000)
-                endTime = new Date(endTime.getTime() - 8 * 60 * 60 * 1000)
                 break
               default:
                 // 默认近24小时
@@ -329,28 +350,20 @@ export const useDashboardStore = defineStore('dashboard', () => {
             startDate = new Date(now.getTime() - 24 * 60 * 60 * 1000)
             break
           case 'yesterday':
-            // 昨天：使用UTC时间，避免时区双重转换
+            // 昨天：基于系统时区的昨天
-            startDate = new Date(now)
+            const systemNow5 = getDateInSystemTimezone(now)
-            startDate.setUTCDate(now.getUTCDate() - 1)
+            const yesterday2 = new Date(systemNow5)
-            startDate.setUTCHours(0, 0, 0, 0)
+            yesterday2.setUTCDate(yesterday2.getUTCDate() - 1)
-            endDate = new Date(startDate)
+            startDate = getSystemTimezoneDay(yesterday2, true)
-            endDate.setUTCHours(23, 59, 59, 999)
+            endDate = getSystemTimezoneDay(yesterday2, false)
-            
-            // 由于后端会加8小时，我们需要减去8小时
-            startDate = new Date(startDate.getTime() - 8 * 60 * 60 * 1000)
-            endDate = new Date(endDate.getTime() - 8 * 60 * 60 * 1000)
             break
           case 'dayBefore':
-            // 前天：使用UTC时间
+            // 前天：基于系统时区的前天
-            startDate = new Date(now)
+            const systemNow6 = getDateInSystemTimezone(now)
-            startDate.setUTCDate(now.getUTCDate() - 2)
+            const dayBefore2 = new Date(systemNow6)
-            startDate.setUTCHours(0, 0, 0, 0)
+            dayBefore2.setUTCDate(dayBefore2.getUTCDate() - 2)
-            endDate = new Date(startDate)
+            startDate = getSystemTimezoneDay(dayBefore2, true)
-            endDate.setUTCHours(23, 59, 59, 999)
+            endDate = getSystemTimezoneDay(dayBefore2, false)
-            
-            // 由于后端会加8小时，我们需要减去8小时
-            startDate = new Date(startDate.getTime() - 8 * 60 * 60 * 1000)
-            endDate = new Date(endDate.getTime() - 8 * 60 * 60 * 1000)
             break
         }
       } else {