refactor(frontend): UI/UX改进和组件优化

- DataTable组件操作列自适应
- 优化各种Modal弹窗
- 统一API调用方式（AbortSignal）
- 添加全局订阅状态管理
- 优化各管理视图的交互和布局
- 修复国际化翻译问题

frontend/src/views/auth/RegisterView.vue

@@ -66,6 +66,7 @@
               v-model="formData.email"
               type="email"
               required
+              autofocus
               autocomplete="email"
               :disabled="isLoading"
               class="input pl-11"

frontend/src/views/setup/SetupWizardView.vue

@@ -563,13 +563,13 @@ const installing = ref(false)
 const confirmPassword = ref('')
 const serviceReady = ref(false)
 
-// Get current server port from browser location (set by install.sh)
+// Default server port
 const getCurrentPort = (): number => {
   const port = window.location.port
   if (port) {
     return parseInt(port, 10)
   }
-  // Default port based on protocol
+
   return window.location.protocol === 'https:' ? 443 : 80
 }
 
@@ -674,29 +674,23 @@ async function performInstall() {
 
 // Wait for service to restart and become available
 async function waitForServiceRestart() {
-  const maxAttempts = 30 // 30 attempts, ~30 seconds max
+  const maxAttempts = 60 // Increase to 60 attempts, ~60 seconds max
   const interval = 1000 // 1 second between attempts
 
   // Wait a moment for the service to start restarting
-  await new Promise((resolve) => setTimeout(resolve, 2000))
+  await new Promise((resolve) => setTimeout(resolve, 3000))
 
   for (let attempt = 0; attempt < maxAttempts; attempt++) {
     try {
-      // Try to access the health endpoint
-      const response = await fetch('/health', {
+      // Use setup status endpoint as it tells us the real mode
+      // Service might return 404 or connection refused while restarting
+      const response = await fetch('/setup/status', {
         method: 'GET',
         cache: 'no-store'
       })
 
       if (response.ok) {
-        // Service is up, check if setup is no longer needed
-        const statusResponse = await fetch('/setup/status', {
-          method: 'GET',
-          cache: 'no-store'
-        })
-
-        if (statusResponse.ok) {
-          const data = await statusResponse.json()
+        const data = await response.json()
         // If needs_setup is false, service has restarted in normal mode
         if (data.data && !data.data.needs_setup) {
           serviceReady.value = true
@@ -707,9 +701,8 @@ async function waitForServiceRestart() {
           return
         }
       }
-      }
     } catch {
-      // Service not ready yet, continue polling
+      // Service not ready or network error during restart, continue polling
     }
 
     await new Promise((resolve) => setTimeout(resolve, interval))

frontend/src/views/user/DashboardView.vue

@@ -322,7 +322,13 @@
           <!-- Charts Grid -->
           <div class="grid grid-cols-1 gap-6 lg:grid-cols-2">
             <!-- Model Distribution Chart -->
-            <div class="card p-4">
+            <div class="card relative overflow-hidden p-4">
+              <div
+                v-if="loadingCharts"
+                class="absolute inset-0 z-10 flex items-center justify-center bg-white/50 backdrop-blur-sm dark:bg-dark-800/50"
+              >
+                <LoadingSpinner size="md" />
+              </div>
               <h3 class="mb-4 text-sm font-semibold text-gray-900 dark:text-white">
                 {{ t('dashboard.modelDistribution') }}
               </h3>
@@ -383,7 +389,13 @@
             </div>
 
             <!-- Token Usage Trend Chart -->
-            <div class="card p-4">
+            <div class="card relative overflow-hidden p-4">
+              <div
+                v-if="loadingCharts"
+                class="absolute inset-0 z-10 flex items-center justify-center bg-white/50 backdrop-blur-sm dark:bg-dark-800/50"
+              >
+                <LoadingSpinner size="md" />
+              </div>
               <h3 class="mb-4 text-sm font-semibold text-gray-900 dark:text-white">
                 {{ t('dashboard.tokenUsageTrend') }}
               </h3>
@@ -694,6 +706,7 @@ const user = computed(() => authStore.user)
 const stats = ref<UserDashboardStats | null>(null)
 const loading = ref(false)
 const loadingUsage = ref(false)
+const loadingCharts = ref(false)
 
 // Chart data
 const trendData = ref<TrendDataPoint[]>([])
@@ -964,6 +977,7 @@ const loadDashboardStats = async () => {
 }
 
 const loadChartData = async () => {
+  loadingCharts.value = true
   try {
     const params = {
       start_date: startDate.value,
@@ -981,14 +995,16 @@ const loadChartData = async () => {
     modelStats.value = modelResponse.models || []
   } catch (error) {
     console.error('Error loading chart data:', error)
+  } finally {
+    loadingCharts.value = false
   }
 }
 
 const loadRecentUsage = async () => {
   loadingUsage.value = true
   try {
-    const endDate = new Date().toISOString()
-    const startDate = new Date(Date.now() - 7 * 24 * 60 * 60 * 1000).toISOString()
+    const endDate = new Date().toISOString().split('T')[0]
+    const startDate = new Date(Date.now() - 7 * 24 * 60 * 60 * 1000).toISOString().split('T')[0]
     const usageResponse = await usageAPI.getByDateRange(startDate, endDate)
     recentUsage.value = usageResponse.items.slice(0, 5)
   } catch (error) {
@@ -998,11 +1014,17 @@ const loadRecentUsage = async () => {
   }
 }
 
-onMounted(() => {
-  loadDashboardStats()
+onMounted(async () => {
+  // Load critical data first
+  await loadDashboardStats()
+
+  // Initialize date range (synchronous)
   initializeDateRange()
-  loadChartData()
-  loadRecentUsage()
+
+  // Load chart data and recent usage in parallel (non-critical)
+  Promise.all([loadChartData(), loadRecentUsage()]).catch((error) => {
+    console.error('Error loading secondary data:', error)
+  })
 })
 
 // Watch for dark mode changes

frontend/src/views/user/KeysView.vue

@@ -292,17 +292,19 @@
           :total="pagination.total"
           :page-size="pagination.page_size"
           @update:page="handlePageChange"
+          @update:pageSize="handlePageSizeChange"
         />
       </template>
     </TablePageLayout>
 
     <!-- Create/Edit Modal -->
-    <Modal
+    <BaseDialog
       :show="showCreateModal || showEditModal"
       :title="showEditModal ? t('keys.editKey') : t('keys.createKey')"
+      width="narrow"
       @close="closeModals"
     >
-      <form @submit.prevent="handleSubmit" class="space-y-5">
+      <form id="key-form" @submit.prevent="handleSubmit" class="space-y-5">
         <div>
           <label class="input-label">{{ t('keys.nameLabel') }}</label>
           <input
@@ -383,12 +385,13 @@
             :placeholder="t('keys.selectStatus')"
           />
         </div>
-
-        <div class="flex justify-end gap-3 pt-4">
+      </form>
+      <template #footer>
+        <div class="flex justify-end gap-3">
           <button @click="closeModals" type="button" class="btn btn-secondary">
             {{ t('common.cancel') }}
           </button>
-          <button type="submit" :disabled="submitting" class="btn btn-primary">
+          <button form="key-form" type="submit" :disabled="submitting" class="btn btn-primary">
             <svg
               v-if="submitting"
               class="-ml-1 mr-2 h-4 w-4 animate-spin"
@@ -418,8 +421,8 @@
             }}
           </button>
         </div>
-      </form>
-    </Modal>
+      </template>
+    </BaseDialog>
 
     <!-- Delete Confirmation Dialog -->
     <ConfirmDialog
@@ -501,7 +504,7 @@ import AppLayout from '@/components/layout/AppLayout.vue'
 import TablePageLayout from '@/components/layout/TablePageLayout.vue'
 import DataTable from '@/components/common/DataTable.vue'
 import Pagination from '@/components/common/Pagination.vue'
-import Modal from '@/components/common/Modal.vue'
+import BaseDialog from '@/components/common/BaseDialog.vue'
 import ConfirmDialog from '@/components/common/ConfirmDialog.vue'
 import EmptyState from '@/components/common/EmptyState.vue'
 import Select from '@/components/common/Select.vue'
@@ -557,6 +560,7 @@ const publicSettings = ref<PublicSettings | null>(null)
 const dropdownRef = ref<HTMLElement | null>(null)
 const dropdownPosition = ref<{ top: number; left: number } | null>(null)
 const groupButtonRefs = ref<Map<number, HTMLElement>>(new Map())
+let abortController: AbortController | null = null
 
 // Get the currently selected key for group change
 const selectedKeyForGroup = computed(() => {
@@ -623,14 +627,27 @@ const copyToClipboard = async (text: string, keyId: number) => {
     copiedKeyId.value = keyId
     setTimeout(() => {
       copiedKeyId.value = null
-    }, 2000)
+    }, 800)
   }
 }
 
+const isAbortError = (error: unknown) => {
+  if (!error || typeof error !== 'object') return false
+  const { name, code } = error as { name?: string; code?: string }
+  return name === 'AbortError' || code === 'ERR_CANCELED'
+}
+
 const loadApiKeys = async () => {
+  abortController?.abort()
+  const controller = new AbortController()
+  abortController = controller
+  const { signal } = controller
   loading.value = true
   try {
-    const response = await keysAPI.list(pagination.value.page, pagination.value.page_size)
+    const response = await keysAPI.list(pagination.value.page, pagination.value.page_size, {
+      signal
+    })
+    if (signal.aborted) return
     apiKeys.value = response.items
     pagination.value.total = response.total
     pagination.value.pages = response.pages
@@ -639,17 +656,25 @@ const loadApiKeys = async () => {
     if (response.items.length > 0) {
       const keyIds = response.items.map((k) => k.id)
       try {
-        const usageResponse = await usageAPI.getDashboardApiKeysUsage(keyIds)
+        const usageResponse = await usageAPI.getDashboardApiKeysUsage(keyIds, { signal })
+        if (signal.aborted) return
         usageStats.value = usageResponse.stats
       } catch (e) {
+        if (!isAbortError(e)) {
           console.error('Failed to load usage stats:', e)
         }
       }
+    }
   } catch (error) {
+    if (isAbortError(error)) {
+      return
+    }
     appStore.showError(t('keys.failedToLoad'))
   } finally {
+    if (abortController === controller) {
       loading.value = false
     }
+  }
 }
 
 const loadGroups = async () => {
@@ -683,6 +708,12 @@ const handlePageChange = (page: number) => {
   loadApiKeys()
 }
 
+const handlePageSizeChange = (pageSize: number) => {
+  pagination.value.page_size = pageSize
+  pagination.value.page = 1
+  loadApiKeys()
+}
+
 const editKey = (key: ApiKey) => {
   selectedKey.value = key
   formData.value = {

frontend/src/views/user/ProfileView.vue

@@ -244,6 +244,12 @@
                 autocomplete="new-password"
                 class="input"
               />
+              <p
+                v-if="passwordForm.new_password && passwordForm.confirm_password && passwordForm.new_password !== passwordForm.confirm_password"
+                class="input-error-text"
+              >
+                {{ t('profile.passwordsNotMatch') }}
+              </p>
             </div>
 
             <div class="flex justify-end pt-4">
@@ -392,6 +398,12 @@ const handleChangePassword = async () => {
 }
 
 const handleUpdateProfile = async () => {
+  // Basic validation
+  if (!profileForm.value.username.trim()) {
+    appStore.showError(t('profile.usernameRequired'))
+    return
+  }
+
   updatingProfile.value = true
   try {
     const updatedUser = await userAPI.updateProfile({

frontend/src/views/user/UsageView.vue

@@ -164,8 +164,28 @@
               <button @click="resetFilters" class="btn btn-secondary">
                 {{ t('common.reset') }}
               </button>
-              <button @click="exportToCSV" class="btn btn-primary">
-                {{ t('usage.exportCsv') }}
+              <button @click="exportToCSV" :disabled="exporting" class="btn btn-primary">
+                <svg
+                  v-if="exporting"
+                  class="-ml-1 mr-2 h-4 w-4 animate-spin"
+                  fill="none"
+                  viewBox="0 0 24 24"
+                >
+                  <circle
+                    class="opacity-25"
+                    cx="12"
+                    cy="12"
+                    r="10"
+                    stroke="currentColor"
+                    stroke-width="4"
+                  ></circle>
+                  <path
+                    class="opacity-75"
+                    fill="currentColor"
+                    d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"
+                  ></path>
+                </svg>
+                {{ exporting ? t('usage.exporting') : t('usage.exportCsv') }}
               </button>
             </div>
           </div>
@@ -366,6 +386,7 @@
           :total="pagination.total"
           :page-size="pagination.page_size"
           @update:page="handlePageChange"
+          @update:pageSize="handlePageSizeChange"
         />
       </template>
     </TablePageLayout>
@@ -412,7 +433,7 @@
 </template>
 
 <script setup lang="ts">
-import { ref, computed, onMounted } from 'vue'
+import { ref, computed, reactive, onMounted } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useAppStore } from '@/stores/app'
 import { usageAPI, keysAPI } from '@/api'
@@ -430,6 +451,8 @@ import { formatDateTime } from '@/utils/format'
 const { t } = useI18n()
 const appStore = useAppStore()
 
+let abortController: AbortController | null = null
+
 // Tooltip state
 const tooltipVisible = ref(false)
 const tooltipPosition = ref({ x: 0, y: 0 })
@@ -453,6 +476,7 @@ const columns = computed<Column[]>(() => [
 const usageLogs = ref<UsageLog[]>([])
 const apiKeys = ref<ApiKey[]>([])
 const loading = ref(false)
+const exporting = ref(false)
 
 const apiKeyOptions = computed(() => {
   return [
@@ -498,7 +522,7 @@ const onDateRangeChange = (range: {
   applyFilters()
 }
 
-const pagination = ref({
+const pagination = reactive({
   page: 1,
   page_size: 20,
   total: 0,
@@ -532,23 +556,41 @@ const formatCacheTokens = (value: number): string => {
 }
 
 const loadUsageLogs = async () => {
+  if (abortController) {
+    abortController.abort()
+  }
+  const currentAbortController = new AbortController()
+  abortController = currentAbortController
+  const { signal } = currentAbortController
   loading.value = true
   try {
     const params: UsageQueryParams = {
-      page: pagination.value.page,
-      page_size: pagination.value.page_size,
+      page: pagination.page,
+      page_size: pagination.page_size,
       ...filters.value
     }
 
-    const response = await usageAPI.query(params)
+    const response = await usageAPI.query(params, { signal })
+    if (signal.aborted) {
+      return
+    }
     usageLogs.value = response.items
-    pagination.value.total = response.total
-    pagination.value.pages = response.pages
+    pagination.total = response.total
+    pagination.pages = response.pages
   } catch (error) {
+    if (signal.aborted) {
+      return
+    }
+    const abortError = error as { name?: string; code?: string }
+    if (abortError?.name === 'AbortError' || abortError?.code === 'ERR_CANCELED') {
+      return
+    }
     appStore.showError(t('usage.failedToLoad'))
   } finally {
+    if (abortController === currentAbortController) {
       loading.value = false
     }
+  }
 }
 
 const loadApiKeys = async () => {
@@ -575,7 +617,7 @@ const loadUsageStats = async () => {
 }
 
 const applyFilters = () => {
-  pagination.value.page = 1
+  pagination.page = 1
   loadUsageLogs()
   loadUsageStats()
 }
@@ -588,60 +630,128 @@ const resetFilters = () => {
   }
   // Reset date range to default (last 7 days)
   initializeDateRange()
-  pagination.value.page = 1
+  pagination.page = 1
   loadUsageLogs()
   loadUsageStats()
 }
 
 const handlePageChange = (page: number) => {
-  pagination.value.page = page
+  pagination.page = page
   loadUsageLogs()
 }
 
-const exportToCSV = () => {
-  if (usageLogs.value.length === 0) {
+const handlePageSizeChange = (pageSize: number) => {
+  pagination.page_size = pageSize
+  pagination.page = 1
+  loadUsageLogs()
+}
+
+/**
+ * Escape CSV value to prevent injection and handle special characters
+ */
+const escapeCSVValue = (value: unknown): string => {
+  if (value == null) return ''
+
+  const str = String(value)
+  const escaped = str.replace(/"/g, '""')
+
+  // Prevent formula injection by prefixing dangerous characters with single quote
+  if (/^[=+\-@\t\r]/.test(str)) {
+    return `"\'${escaped}"`
+  }
+
+  // Escape values containing comma, quote, or newline
+  if (/[,"\n\r]/.test(str)) {
+    return `"${escaped}"`
+  }
+
+  return str
+}
+
+const exportToCSV = async () => {
+  if (pagination.total === 0) {
+    appStore.showWarning(t('usage.noDataToExport'))
+    return
+  }
+
+  exporting.value = true
+  appStore.showInfo(t('usage.preparingExport'))
+
+  try {
+    const allLogs: UsageLog[] = []
+    const pageSize = 100 // Use a larger page size for export to reduce requests
+    const totalRequests = Math.ceil(pagination.total / pageSize)
+
+    for (let page = 1; page <= totalRequests; page++) {
+      const params: UsageQueryParams = {
+        page: page,
+        page_size: pageSize,
+        ...filters.value
+      }
+      const response = await usageAPI.query(params)
+      allLogs.push(...response.items)
+    }
+
+    if (allLogs.length === 0) {
       appStore.showWarning(t('usage.noDataToExport'))
       return
     }
 
     const headers = [
+      'Time',
+      'API Key Name',
       'Model',
       'Type',
       'Input Tokens',
       'Output Tokens',
       'Cache Read Tokens',
-    'Cache Write Tokens',
-    'Total Cost',
+      'Cache Creation Tokens',
+      'Rate Multiplier',
+      'Billed Cost',
+      'Original Cost',
       'Billing Type',
       'First Token (ms)',
-    'Duration (ms)',
-    'Time'
+      'Duration (ms)'
     ]
-  const rows = usageLogs.value.map((log) => [
+    const rows = allLogs.map((log) =>
+      [
+        log.created_at,
+        log.api_key?.name || '',
         log.model,
         log.stream ? 'Stream' : 'Sync',
         log.input_tokens,
         log.output_tokens,
         log.cache_read_tokens,
         log.cache_creation_tokens,
-    log.total_cost.toFixed(6),
+        log.rate_multiplier,
+        log.actual_cost.toFixed(8),
+        log.total_cost.toFixed(8),
         log.billing_type === 1 ? 'Subscription' : 'Balance',
         log.first_token_ms ?? '',
-    log.duration_ms,
-    log.created_at
-  ])
+        log.duration_ms
+      ].map(escapeCSVValue)
+    )
 
-  const csvContent = [headers.join(','), ...rows.map((row) => row.join(','))].join('\n')
+    const csvContent = [
+      headers.map(escapeCSVValue).join(','),
+      ...rows.map((row) => row.join(','))
+    ].join('\n')
 
-  const blob = new Blob([csvContent], { type: 'text/csv' })
+    const blob = new Blob([csvContent], { type: 'text/csv;charset=utf-8;' })
     const url = window.URL.createObjectURL(blob)
     const link = document.createElement('a')
     link.href = url
-  link.download = `usage_${new Date().toISOString().split('T')[0]}.csv`
+    link.download = `usage_${filters.value.start_date}_to_${filters.value.end_date}.csv`
     link.click()
     window.URL.revokeObjectURL(url)
 
     appStore.showSuccess(t('usage.exportSuccess'))
+  } catch (error) {
+    appStore.showError(t('usage.exportFailed'))
+    console.error('CSV Export failed:', error)
+  } finally {
+    exporting.value = false
+  }
 }
 
 // Tooltip functions