First commit

frontend/src/components/common/ConfirmDialog.vue

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+<template>
+  <Modal :show="show" :title="title" size="sm" @close="handleCancel">
+    <div class="space-y-4">
+      <p class="text-sm text-gray-600 dark:text-gray-400">{{ message }}</p>
+    </div>
+
+    <template #footer>
+      <div class="flex justify-end space-x-3">
+        <button
+          @click="handleCancel"
+          type="button"
+          class="px-4 py-2 text-sm font-medium text-gray-700 dark:text-gray-200 bg-white dark:bg-dark-700 border border-gray-300 dark:border-dark-600 rounded-md hover:bg-gray-50 dark:hover:bg-dark-600 focus:outline-none focus:ring-2 focus:ring-offset-2 dark:focus:ring-offset-dark-800 focus:ring-primary-500"
+        >
+          {{ cancelText }}
+        </button>
+        <button
+          @click="handleConfirm"
+          type="button"
+          :class="[
+            'px-4 py-2 text-sm font-medium text-white rounded-md focus:outline-none focus:ring-2 focus:ring-offset-2 dark:focus:ring-offset-dark-800',
+            danger
+              ? 'bg-red-600 hover:bg-red-700 focus:ring-red-500'
+              : 'bg-primary-600 hover:bg-primary-700 focus:ring-primary-500'
+          ]"
+        >
+          {{ confirmText }}
+        </button>
+      </div>
+    </template>
+  </Modal>
+</template>
+
+<script setup lang="ts">
+import Modal from './Modal.vue'
+
+interface Props {
+  show: boolean
+  title: string
+  message: string
+  confirmText?: string
+  cancelText?: string
+  danger?: boolean
+}
+
+interface Emits {
+  (e: 'confirm'): void
+  (e: 'cancel'): void
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  confirmText: 'Confirm',
+  cancelText: 'Cancel',
+  danger: false
+})
+
+const emit = defineEmits<Emits>()
+
+const handleConfirm = () => {
+  emit('confirm')
+}
+
+const handleCancel = () => {
+  emit('cancel')
+}
+</script>

frontend/src/components/common/DataTable.vue

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+<template>
+  <div class="overflow-x-auto">
+    <table class="min-w-full divide-y divide-gray-200 dark:divide-dark-700">
+      <thead class="bg-gray-50 dark:bg-dark-800">
+        <tr>
+          <th
+            v-for="column in columns"
+            :key="column.key"
+            scope="col"
+            class="px-6 py-3 text-left text-xs font-medium text-gray-500 dark:text-dark-400 uppercase tracking-wider"
+            :class="{ 'cursor-pointer hover:bg-gray-100 dark:hover:bg-dark-700': column.sortable }"
+            @click="column.sortable && handleSort(column.key)"
+          >
+            <div class="flex items-center space-x-1">
+              <span>{{ column.label }}</span>
+              <span v-if="column.sortable" class="text-gray-400 dark:text-dark-500">
+                <svg
+                  v-if="sortKey === column.key"
+                  class="w-4 h-4"
+                  :class="{ 'transform rotate-180': sortOrder === 'desc' }"
+                  fill="currentColor"
+                  viewBox="0 0 20 20"
+                >
+                  <path
+                    fill-rule="evenodd"
+                    d="M14.707 12.707a1 1 0 01-1.414 0L10 9.414l-3.293 3.293a1 1 0 01-1.414-1.414l4-4a1 1 0 011.414 0l4 4a1 1 0 010 1.414z"
+                    clip-rule="evenodd"
+                  />
+                </svg>
+                <svg v-else class="w-4 h-4" fill="currentColor" viewBox="0 0 20 20">
+                  <path
+                    d="M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z"
+                  />
+                </svg>
+              </span>
+            </div>
+          </th>
+        </tr>
+      </thead>
+      <tbody class="bg-white dark:bg-dark-900 divide-y divide-gray-200 dark:divide-dark-700">
+        <!-- Loading skeleton -->
+        <tr v-if="loading" v-for="i in 5" :key="i">
+          <td v-for="column in columns" :key="column.key" class="px-6 py-4 whitespace-nowrap">
+            <div class="animate-pulse">
+              <div class="h-4 bg-gray-200 dark:bg-dark-700 rounded w-3/4"></div>
+            </div>
+          </td>
+        </tr>
+
+        <!-- Empty state -->
+        <tr v-else-if="!data || data.length === 0">
+          <td :colspan="columns.length" class="px-6 py-12 text-center text-gray-500 dark:text-dark-400">
+            <slot name="empty">
+              <div class="flex flex-col items-center">
+                <svg class="w-12 h-12 text-gray-400 dark:text-dark-500 mb-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                  <path
+                    stroke-linecap="round"
+                    stroke-linejoin="round"
+                    stroke-width="2"
+                    d="M20 13V6a2 2 0 00-2-2H6a2 2 0 00-2 2v7m16 0v5a2 2 0 01-2 2H6a2 2 0 01-2-2v-5m16 0h-2.586a1 1 0 00-.707.293l-2.414 2.414a1 1 0 01-.707.293h-3.172a1 1 0 01-.707-.293l-2.414-2.414A1 1 0 006.586 13H4"
+                  />
+                </svg>
+                <p class="text-lg font-medium text-gray-900 dark:text-gray-100">{{ t('empty.noData') }}</p>
+              </div>
+            </slot>
+          </td>
+        </tr>
+
+        <!-- Data rows -->
+        <tr v-else v-for="(row, index) in sortedData" :key="index" class="hover:bg-gray-50 dark:hover:bg-dark-800">
+          <td
+            v-for="column in columns"
+            :key="column.key"
+            class="px-6 py-4 whitespace-nowrap text-sm text-gray-900 dark:text-gray-100"
+          >
+            <slot :name="`cell-${column.key}`" :row="row" :value="row[column.key]">
+              {{ column.formatter ? column.formatter(row[column.key], row) : row[column.key] }}
+            </slot>
+          </td>
+        </tr>
+      </tbody>
+    </table>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed, ref } from 'vue'
+import { useI18n } from 'vue-i18n'
+
+const { t } = useI18n()
+
+export interface Column {
+  key: string
+  label: string
+  sortable?: boolean
+  formatter?: (value: any, row: any) => string
+}
+
+interface Props {
+  columns: Column[]
+  data: any[]
+  loading?: boolean
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  loading: false
+})
+
+const sortKey = ref<string>('')
+const sortOrder = ref<'asc' | 'desc'>('asc')
+
+const handleSort = (key: string) => {
+  if (sortKey.value === key) {
+    sortOrder.value = sortOrder.value === 'asc' ? 'desc' : 'asc'
+  } else {
+    sortKey.value = key
+    sortOrder.value = 'asc'
+  }
+}
+
+const sortedData = computed(() => {
+  if (!sortKey.value || !props.data) return props.data
+
+  return [...props.data].sort((a, b) => {
+    const aVal = a[sortKey.value]
+    const bVal = b[sortKey.value]
+
+    if (aVal === bVal) return 0
+
+    const comparison = aVal > bVal ? 1 : -1
+    return sortOrder.value === 'asc' ? comparison : -comparison
+  })
+})
+</script>

frontend/src/components/common/DateRangePicker.vue

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+<template>
+  <div class="relative" ref="containerRef">
+    <button
+      type="button"
+      @click="toggle"
+      :class="[
+        'date-picker-trigger',
+        isOpen && 'date-picker-trigger-open'
+      ]"
+    >
+      <span class="date-picker-icon">
+        <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24" stroke-width="1.5">
+          <path stroke-linecap="round" stroke-linejoin="round" d="M6.75 3v2.25M17.25 3v2.25M3 18.75V7.5a2.25 2.25 0 012.25-2.25h13.5A2.25 2.25 0 0121 7.5v11.25m-18 0A2.25 2.25 0 005.25 21h13.5A2.25 2.25 0 0021 18.75m-18 0v-7.5A2.25 2.25 0 015.25 9h13.5A2.25 2.25 0 0121 11.25v7.5" />
+        </svg>
+      </span>
+      <span class="date-picker-value">
+        {{ displayValue }}
+      </span>
+      <span class="date-picker-chevron">
+        <svg
+          :class="['w-4 h-4 transition-transform duration-200', isOpen && 'rotate-180']"
+          fill="none"
+          stroke="currentColor"
+          viewBox="0 0 24 24"
+          stroke-width="1.5"
+        >
+          <path stroke-linecap="round" stroke-linejoin="round" d="M19.5 8.25l-7.5 7.5-7.5-7.5" />
+        </svg>
+      </span>
+    </button>
+
+    <Transition name="date-picker-dropdown">
+      <div
+        v-if="isOpen"
+        class="date-picker-dropdown"
+      >
+        <!-- Quick presets -->
+        <div class="date-picker-presets">
+          <button
+            v-for="preset in presets"
+            :key="preset.value"
+            @click="selectPreset(preset)"
+            :class="[
+              'date-picker-preset',
+              isPresetActive(preset) && 'date-picker-preset-active'
+            ]"
+          >
+            {{ t(preset.labelKey) }}
+          </button>
+        </div>
+
+        <div class="date-picker-divider"></div>
+
+        <!-- Custom date range inputs -->
+        <div class="date-picker-custom">
+          <div class="date-picker-field">
+            <label class="date-picker-label">{{ t('dates.startDate') }}</label>
+            <input
+              type="date"
+              v-model="localStartDate"
+              :max="localEndDate || today"
+              class="date-picker-input"
+              @change="onDateChange"
+            />
+          </div>
+          <div class="date-picker-separator">
+            <svg class="w-4 h-4 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24" stroke-width="1.5">
+              <path stroke-linecap="round" stroke-linejoin="round" d="M17.25 8.25L21 12m0 0l-3.75 3.75M21 12H3" />
+            </svg>
+          </div>
+          <div class="date-picker-field">
+            <label class="date-picker-label">{{ t('dates.endDate') }}</label>
+            <input
+              type="date"
+              v-model="localEndDate"
+              :min="localStartDate"
+              :max="today"
+              class="date-picker-input"
+              @change="onDateChange"
+            />
+          </div>
+        </div>
+
+        <!-- Apply button -->
+        <div class="date-picker-actions">
+          <button
+            @click="apply"
+            class="date-picker-apply"
+          >
+            {{ t('dates.apply') }}
+          </button>
+        </div>
+      </div>
+    </Transition>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, watch, onMounted, onUnmounted } from 'vue'
+import { useI18n } from 'vue-i18n'
+
+interface DatePreset {
+  labelKey: string
+  value: string
+  getRange: () => { start: string; end: string }
+}
+
+interface Props {
+  startDate: string
+  endDate: string
+}
+
+interface Emits {
+  (e: 'update:startDate', value: string): void
+  (e: 'update:endDate', value: string): void
+  (e: 'change', range: { startDate: string; endDate: string; preset: string | null }): void
+}
+
+const props = defineProps<Props>()
+const emit = defineEmits<Emits>()
+
+const { t, locale } = useI18n()
+
+const isOpen = ref(false)
+const containerRef = ref<HTMLElement | null>(null)
+const localStartDate = ref(props.startDate)
+const localEndDate = ref(props.endDate)
+const activePreset = ref<string | null>('7days')
+
+const today = computed(() => new Date().toISOString().split('T')[0])
+
+const presets: DatePreset[] = [
+  {
+    labelKey: 'dates.today',
+    value: 'today',
+    getRange: () => {
+      const t = today.value
+      return { start: t, end: t }
+    }
+  },
+  {
+    labelKey: 'dates.yesterday',
+    value: 'yesterday',
+    getRange: () => {
+      const d = new Date()
+      d.setDate(d.getDate() - 1)
+      const yesterday = d.toISOString().split('T')[0]
+      return { start: yesterday, end: yesterday }
+    }
+  },
+  {
+    labelKey: 'dates.last7Days',
+    value: '7days',
+    getRange: () => {
+      const end = today.value
+      const d = new Date()
+      d.setDate(d.getDate() - 6)
+      const start = d.toISOString().split('T')[0]
+      return { start, end }
+    }
+  },
+  {
+    labelKey: 'dates.last14Days',
+    value: '14days',
+    getRange: () => {
+      const end = today.value
+      const d = new Date()
+      d.setDate(d.getDate() - 13)
+      const start = d.toISOString().split('T')[0]
+      return { start, end }
+    }
+  },
+  {
+    labelKey: 'dates.last30Days',
+    value: '30days',
+    getRange: () => {
+      const end = today.value
+      const d = new Date()
+      d.setDate(d.getDate() - 29)
+      const start = d.toISOString().split('T')[0]
+      return { start, end }
+    }
+  },
+  {
+    labelKey: 'dates.thisMonth',
+    value: 'thisMonth',
+    getRange: () => {
+      const now = new Date()
+      const start = new Date(now.getFullYear(), now.getMonth(), 1).toISOString().split('T')[0]
+      return { start, end: today.value }
+    }
+  },
+  {
+    labelKey: 'dates.lastMonth',
+    value: 'lastMonth',
+    getRange: () => {
+      const now = new Date()
+      const start = new Date(now.getFullYear(), now.getMonth() - 1, 1).toISOString().split('T')[0]
+      const end = new Date(now.getFullYear(), now.getMonth(), 0).toISOString().split('T')[0]
+      return { start, end }
+    }
+  }
+]
+
+const displayValue = computed(() => {
+  if (activePreset.value) {
+    const preset = presets.find(p => p.value === activePreset.value)
+    if (preset) return t(preset.labelKey)
+  }
+
+  if (localStartDate.value && localEndDate.value) {
+    if (localStartDate.value === localEndDate.value) {
+      return formatDate(localStartDate.value)
+    }
+    return `${formatDate(localStartDate.value)} - ${formatDate(localEndDate.value)}`
+  }
+
+  return t('dates.selectDateRange')
+})
+
+const formatDate = (dateStr: string): string => {
+  const date = new Date(dateStr + 'T00:00:00')
+  const dateLocale = locale.value === 'zh' ? 'zh-CN' : 'en-US'
+  return date.toLocaleDateString(dateLocale, { month: 'short', day: 'numeric' })
+}
+
+const isPresetActive = (preset: DatePreset): boolean => {
+  return activePreset.value === preset.value
+}
+
+const selectPreset = (preset: DatePreset) => {
+  const range = preset.getRange()
+  localStartDate.value = range.start
+  localEndDate.value = range.end
+  activePreset.value = preset.value
+}
+
+const onDateChange = () => {
+  // Check if current dates match any preset
+  activePreset.value = null
+  for (const preset of presets) {
+    const range = preset.getRange()
+    if (range.start === localStartDate.value && range.end === localEndDate.value) {
+      activePreset.value = preset.value
+      break
+    }
+  }
+}
+
+const toggle = () => {
+  isOpen.value = !isOpen.value
+}
+
+const apply = () => {
+  emit('update:startDate', localStartDate.value)
+  emit('update:endDate', localEndDate.value)
+  emit('change', {
+    startDate: localStartDate.value,
+    endDate: localEndDate.value,
+    preset: activePreset.value
+  })
+  isOpen.value = false
+}
+
+const handleClickOutside = (event: MouseEvent) => {
+  if (containerRef.value && !containerRef.value.contains(event.target as Node)) {
+    isOpen.value = false
+  }
+}
+
+const handleEscape = (event: KeyboardEvent) => {
+  if (event.key === 'Escape' && isOpen.value) {
+    isOpen.value = false
+  }
+}
+
+// Sync local state with props
+watch(() => props.startDate, (val) => {
+  localStartDate.value = val
+  onDateChange()
+})
+
+watch(() => props.endDate, (val) => {
+  localEndDate.value = val
+  onDateChange()
+})
+
+onMounted(() => {
+  document.addEventListener('click', handleClickOutside)
+  document.addEventListener('keydown', handleEscape)
+  // Initialize active preset detection
+  onDateChange()
+})
+
+onUnmounted(() => {
+  document.removeEventListener('click', handleClickOutside)
+  document.removeEventListener('keydown', handleEscape)
+})
+</script>
+
+<style scoped>
+.date-picker-trigger {
+  @apply flex items-center gap-2;
+  @apply px-3 py-2 rounded-lg text-sm;
+  @apply bg-white dark:bg-dark-800;
+  @apply border border-gray-200 dark:border-dark-600;
+  @apply text-gray-700 dark:text-gray-300;
+  @apply transition-all duration-200;
+  @apply focus:outline-none focus:ring-2 focus:ring-primary-500/30 focus:border-primary-500;
+  @apply hover:border-gray-300 dark:hover:border-dark-500;
+  @apply cursor-pointer;
+}
+
+.date-picker-trigger-open {
+  @apply ring-2 ring-primary-500/30 border-primary-500;
+}
+
+.date-picker-icon {
+  @apply text-gray-400 dark:text-dark-400;
+}
+
+.date-picker-value {
+  @apply font-medium;
+}
+
+.date-picker-chevron {
+  @apply text-gray-400 dark:text-dark-400;
+}
+
+.date-picker-dropdown {
+  @apply absolute z-[100] mt-2 left-0;
+  @apply bg-white dark:bg-dark-800;
+  @apply rounded-xl;
+  @apply border border-gray-200 dark:border-dark-700;
+  @apply shadow-lg shadow-black/10 dark:shadow-black/30;
+  @apply overflow-hidden;
+  @apply min-w-[320px];
+}
+
+.date-picker-presets {
+  @apply grid grid-cols-2 gap-1 p-2;
+}
+
+.date-picker-preset {
+  @apply px-3 py-1.5 text-xs font-medium rounded-md;
+  @apply text-gray-600 dark:text-gray-400;
+  @apply hover:bg-gray-100 dark:hover:bg-dark-700;
+  @apply transition-colors duration-150;
+}
+
+.date-picker-preset-active {
+  @apply bg-primary-100 dark:bg-primary-900/30;
+  @apply text-primary-700 dark:text-primary-300;
+}
+
+.date-picker-divider {
+  @apply border-t border-gray-100 dark:border-dark-700;
+}
+
+.date-picker-custom {
+  @apply flex items-end gap-2 p-3;
+}
+
+.date-picker-field {
+  @apply flex-1;
+}
+
+.date-picker-label {
+  @apply block text-xs font-medium text-gray-500 dark:text-gray-400 mb-1;
+}
+
+.date-picker-input {
+  @apply w-full px-2 py-1.5 text-sm rounded-md;
+  @apply bg-gray-50 dark:bg-dark-700;
+  @apply border border-gray-200 dark:border-dark-600;
+  @apply text-gray-900 dark:text-gray-100;
+  @apply focus:outline-none focus:ring-2 focus:ring-primary-500/30 focus:border-primary-500;
+}
+
+.date-picker-input::-webkit-calendar-picker-indicator {
+  @apply cursor-pointer opacity-60 hover:opacity-100;
+  filter: invert(0.5);
+}
+
+.dark .date-picker-input::-webkit-calendar-picker-indicator {
+  filter: invert(0.7);
+}
+
+.date-picker-separator {
+  @apply flex items-center justify-center pb-1;
+}
+
+.date-picker-actions {
+  @apply flex justify-end p-2 pt-0;
+}
+
+.date-picker-apply {
+  @apply px-4 py-1.5 text-sm font-medium rounded-lg;
+  @apply bg-primary-600 text-white;
+  @apply hover:bg-primary-700;
+  @apply transition-colors duration-150;
+}
+
+/* Dropdown animation */
+.date-picker-dropdown-enter-active,
+.date-picker-dropdown-leave-active {
+  transition: all 0.2s ease;
+}
+
+.date-picker-dropdown-enter-from,
+.date-picker-dropdown-leave-to {
+  opacity: 0;
+  transform: translateY(-8px);
+}
+</style>

frontend/src/components/common/EmptyState.vue

@@ -0,0 +1,91 @@
+<template>
+  <div class="empty-state">
+    <!-- Icon -->
+    <div class="w-20 h-20 mb-5 rounded-2xl bg-gray-100 dark:bg-dark-800 flex items-center justify-center">
+      <slot name="icon">
+        <component
+          v-if="icon"
+          :is="icon"
+          class="empty-state-icon w-10 h-10"
+          aria-hidden="true"
+        />
+        <svg
+          v-else
+          class="empty-state-icon w-10 h-10"
+          fill="none"
+          stroke="currentColor"
+          viewBox="0 0 24 24"
+          stroke-width="1.5"
+        >
+          <path
+            stroke-linecap="round"
+            stroke-linejoin="round"
+            d="M20 13V6a2 2 0 00-2-2H6a2 2 0 00-2 2v7m16 0v5a2 2 0 01-2 2H6a2 2 0 01-2-2v-5m16 0h-2.586a1 1 0 00-.707.293l-2.414 2.414a1 1 0 01-.707.293h-3.172a1 1 0 01-.707-.293l-2.414-2.414A1 1 0 006.586 13H4"
+          />
+        </svg>
+      </slot>
+    </div>
+
+    <!-- Title -->
+    <h3 class="empty-state-title">
+      {{ title }}
+    </h3>
+
+    <!-- Description -->
+    <p class="empty-state-description">
+      {{ description }}
+    </p>
+
+    <!-- Action -->
+    <div v-if="actionText || $slots.action" class="mt-6">
+      <slot name="action">
+        <component
+          :is="actionTo ? 'RouterLink' : 'button'"
+          v-if="actionText"
+          :to="actionTo"
+          @click="!actionTo && $emit('action')"
+          class="btn btn-primary"
+        >
+          <svg
+            v-if="actionIcon"
+            class="w-5 h-5 mr-2"
+            fill="none"
+            stroke="currentColor"
+            viewBox="0 0 24 24"
+            stroke-width="1.5"
+          >
+            <path
+              stroke-linecap="round"
+              stroke-linejoin="round"
+              d="M12 4.5v15m7.5-7.5h-15"
+            />
+          </svg>
+          {{ actionText }}
+        </component>
+      </slot>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import type { Component } from 'vue'
+import { RouterLink } from 'vue-router'
+
+interface Props {
+  icon?: Component | string
+  title?: string
+  description?: string
+  actionText?: string
+  actionTo?: string | object
+  actionIcon?: boolean
+  message?: string
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  title: 'No data found',
+  description: '',
+  actionIcon: true
+})
+
+defineEmits(['action'])
+</script>

frontend/src/components/common/GroupBadge.vue

@@ -0,0 +1,50 @@
+<template>
+  <span
+    :class="[
+      'inline-flex items-center gap-1.5 px-2 py-0.5 rounded-md text-xs font-medium transition-colors',
+      isSubscription
+        ? 'bg-violet-100 text-violet-700 dark:bg-violet-900/30 dark:text-violet-400'
+        : 'bg-emerald-100 text-emerald-700 dark:bg-emerald-900/30 dark:text-emerald-400'
+    ]"
+  >
+    <!-- Subscription type icon (calendar) -->
+    <svg v-if="isSubscription" class="w-3 h-3" fill="none" stroke="currentColor" viewBox="0 0 24 24" stroke-width="2">
+      <path stroke-linecap="round" stroke-linejoin="round" d="M6.75 3v2.25M17.25 3v2.25M3 18.75V7.5a2.25 2.25 0 012.25-2.25h13.5A2.25 2.25 0 0121 7.5v11.25m-18 0A2.25 2.25 0 005.25 21h13.5A2.25 2.25 0 0021 18.75m-18 0v-7.5A2.25 2.25 0 015.25 9h13.5A2.25 2.25 0 0121 11.25v7.5" />
+    </svg>
+    <!-- Standard type icon (wallet) -->
+    <svg v-else class="w-3 h-3" fill="none" stroke="currentColor" viewBox="0 0 24 24" stroke-width="2">
+      <path stroke-linecap="round" stroke-linejoin="round" d="M21 12a2.25 2.25 0 00-2.25-2.25H15a3 3 0 11-6 0H5.25A2.25 2.25 0 003 12m18 0v6a2.25 2.25 0 01-2.25 2.25H5.25A2.25 2.25 0 013 18v-6m18 0V9M3 12V9m18 0a2.25 2.25 0 00-2.25-2.25H5.25A2.25 2.25 0 003 9m18 0V6a2.25 2.25 0 00-2.25-2.25H5.25A2.25 2.25 0 003 6v3" />
+    </svg>
+    <span class="truncate">{{ name }}</span>
+    <span
+      v-if="showRate && rateMultiplier !== undefined"
+      :class="[
+        'px-1 py-0.5 rounded text-[10px] font-semibold',
+        isSubscription
+          ? 'bg-violet-200/60 text-violet-800 dark:bg-violet-800/40 dark:text-violet-300'
+          : 'bg-amber-100 text-amber-700 dark:bg-amber-900/30 dark:text-amber-400'
+      ]"
+    >
+      {{ rateMultiplier }}x
+    </span>
+  </span>
+</template>
+
+<script setup lang="ts">
+import { computed } from 'vue'
+import type { SubscriptionType } from '@/types'
+
+interface Props {
+  name: string
+  subscriptionType?: SubscriptionType
+  rateMultiplier?: number
+  showRate?: boolean
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  subscriptionType: 'standard',
+  showRate: true
+})
+
+const isSubscription = computed(() => props.subscriptionType === 'subscription')
+</script>

frontend/src/components/common/GroupSelector.vue

@@ -0,0 +1,61 @@
+<template>
+  <div>
+    <label class="input-label">
+      Groups
+      <span class="text-gray-400 font-normal">({{ modelValue.length }} selected)</span>
+    </label>
+    <div
+      class="grid grid-cols-2 gap-1 max-h-32 overflow-y-auto p-2 border border-gray-200 dark:border-dark-600 rounded-lg bg-gray-50 dark:bg-dark-800"
+    >
+      <label
+        v-for="group in groups"
+        :key="group.id"
+        class="flex items-center gap-2 px-2 py-1.5 rounded hover:bg-white dark:hover:bg-dark-700 cursor-pointer transition-colors"
+        :title="`${group.rate_multiplier}x rate · ${group.account_count || 0} accounts`"
+      >
+        <input
+          type="checkbox"
+          :value="group.id"
+          :checked="modelValue.includes(group.id)"
+          @change="handleChange(group.id, ($event.target as HTMLInputElement).checked)"
+          class="w-3.5 h-3.5 text-primary-500 border-gray-300 dark:border-dark-500 rounded focus:ring-primary-500 shrink-0"
+        />
+        <GroupBadge
+          :name="group.name"
+          :subscription-type="group.subscription_type"
+          :rate-multiplier="group.rate_multiplier"
+          class="flex-1 min-w-0"
+        />
+        <span class="text-xs text-gray-400 shrink-0">{{ group.account_count || 0 }}</span>
+      </label>
+      <div
+        v-if="groups.length === 0"
+        class="col-span-2 text-center text-sm text-gray-500 dark:text-gray-400 py-2"
+      >
+        No groups available
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import GroupBadge from './GroupBadge.vue'
+import type { Group } from '@/types'
+
+interface Props {
+  modelValue: number[]
+  groups: Group[]
+}
+
+const props = defineProps<Props>()
+const emit = defineEmits<{
+  'update:modelValue': [value: number[]]
+}>()
+
+const handleChange = (groupId: number, checked: boolean) => {
+  const newValue = checked
+    ? [...props.modelValue, groupId]
+    : props.modelValue.filter(id => id !== groupId)
+  emit('update:modelValue', newValue)
+}
+</script>

frontend/src/components/common/LoadingSpinner.vue

@@ -0,0 +1,65 @@
+<template>
+  <div
+    :class="['spinner', sizeClasses, colorClass]"
+    role="status"
+    :aria-label="t('common.loading')"
+  >
+    <span class="sr-only">{{ t('common.loading') }}</span>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed } from 'vue'
+import { useI18n } from 'vue-i18n'
+
+const { t } = useI18n()
+
+type SpinnerSize = 'sm' | 'md' | 'lg' | 'xl'
+type SpinnerColor = 'primary' | 'secondary' | 'white' | 'gray'
+
+interface Props {
+  size?: SpinnerSize
+  color?: SpinnerColor
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  size: 'md',
+  color: 'primary'
+})
+
+const sizeClasses = computed(() => {
+  const sizes: Record<SpinnerSize, string> = {
+    sm: 'w-4 h-4 border-2',
+    md: 'w-8 h-8 border-2',
+    lg: 'w-12 h-12 border-[3px]',
+    xl: 'w-16 h-16 border-4'
+  }
+  return sizes[props.size]
+})
+
+const colorClass = computed(() => {
+  const colors: Record<SpinnerColor, string> = {
+    primary: 'text-primary-500',
+    secondary: 'text-gray-500 dark:text-dark-400',
+    white: 'text-white',
+    gray: 'text-gray-400 dark:text-dark-500'
+  }
+  return colors[props.color]
+})
+</script>
+
+<style scoped>
+.spinner {
+  @apply inline-block rounded-full border-solid border-current border-r-transparent;
+  animation: spin 0.75s linear infinite;
+}
+
+@keyframes spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}
+</style>

frontend/src/components/common/LocaleSwitcher.vue

@@ -0,0 +1,100 @@
+<template>
+  <div class="relative" ref="dropdownRef">
+    <button
+      @click="toggleDropdown"
+      class="flex items-center gap-1.5 px-2 py-1.5 rounded-lg text-sm font-medium text-gray-600 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-dark-700 transition-colors"
+      :title="currentLocale?.name"
+    >
+      <span class="text-base">{{ currentLocale?.flag }}</span>
+      <span class="hidden sm:inline">{{ currentLocale?.code.toUpperCase() }}</span>
+      <svg
+        class="w-3.5 h-3.5 text-gray-400 transition-transform duration-200"
+        :class="{ 'rotate-180': isOpen }"
+        fill="none"
+        viewBox="0 0 24 24"
+        stroke="currentColor"
+        stroke-width="2"
+      >
+        <path stroke-linecap="round" stroke-linejoin="round" d="M19.5 8.25l-7.5 7.5-7.5-7.5" />
+      </svg>
+    </button>
+
+    <transition name="dropdown">
+      <div
+        v-if="isOpen"
+        class="absolute right-0 mt-1 w-32 rounded-lg bg-white dark:bg-dark-800 shadow-lg border border-gray-200 dark:border-dark-700 overflow-hidden z-50"
+      >
+        <button
+          v-for="locale in availableLocales"
+          :key="locale.code"
+          @click="selectLocale(locale.code)"
+          class="w-full flex items-center gap-2 px-3 py-2 text-sm text-gray-700 dark:text-gray-200 hover:bg-gray-100 dark:hover:bg-dark-700 transition-colors"
+          :class="{ 'bg-primary-50 dark:bg-primary-900/20 text-primary-600 dark:text-primary-400': locale.code === currentLocaleCode }"
+        >
+          <span class="text-base">{{ locale.flag }}</span>
+          <span>{{ locale.name }}</span>
+          <svg
+            v-if="locale.code === currentLocaleCode"
+            class="w-4 h-4 ml-auto text-primary-500"
+            fill="none"
+            viewBox="0 0 24 24"
+            stroke="currentColor"
+            stroke-width="2"
+          >
+            <path stroke-linecap="round" stroke-linejoin="round" d="M4.5 12.75l6 6 9-13.5" />
+          </svg>
+        </button>
+      </div>
+    </transition>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, onMounted, onBeforeUnmount } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { setLocale, availableLocales } from '@/i18n'
+
+const { locale } = useI18n()
+
+const isOpen = ref(false)
+const dropdownRef = ref<HTMLElement | null>(null)
+
+const currentLocaleCode = computed(() => locale.value)
+const currentLocale = computed(() => availableLocales.find(l => l.code === locale.value))
+
+function toggleDropdown() {
+  isOpen.value = !isOpen.value
+}
+
+function selectLocale(code: string) {
+  setLocale(code)
+  isOpen.value = false
+}
+
+function handleClickOutside(event: MouseEvent) {
+  if (dropdownRef.value && !dropdownRef.value.contains(event.target as Node)) {
+    isOpen.value = false
+  }
+}
+
+onMounted(() => {
+  document.addEventListener('click', handleClickOutside)
+})
+
+onBeforeUnmount(() => {
+  document.removeEventListener('click', handleClickOutside)
+})
+</script>
+
+<style scoped>
+.dropdown-enter-active,
+.dropdown-leave-active {
+  transition: all 0.15s ease;
+}
+
+.dropdown-enter-from,
+.dropdown-leave-to {
+  opacity: 0;
+  transform: scale(0.95) translateY(-4px);
+}
+</style>

frontend/src/components/common/Modal.vue

@@ -0,0 +1,122 @@
+<template>
+  <Teleport to="body">
+    <div
+      v-if="show"
+      class="modal-overlay"
+      aria-labelledby="modal-title"
+      role="dialog"
+      aria-modal="true"
+      @click.self="handleClose"
+    >
+      <!-- Modal panel -->
+      <div
+        :class="['modal-content', sizeClasses]"
+        @click.stop
+      >
+        <!-- Header -->
+        <div class="modal-header">
+          <h3
+            id="modal-title"
+            class="modal-title"
+          >
+            {{ title }}
+          </h3>
+          <button
+            @click="emit('close')"
+            class="p-2 -mr-2 rounded-xl text-gray-400 dark:text-dark-500 hover:text-gray-600 dark:hover:text-dark-300 hover:bg-gray-100 dark:hover:bg-dark-700 transition-colors"
+            aria-label="Close modal"
+          >
+            <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" stroke-width="1.5">
+              <path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12" />
+            </svg>
+          </button>
+        </div>
+
+        <!-- Body -->
+        <div class="modal-body">
+          <slot></slot>
+        </div>
+
+        <!-- Footer -->
+        <div
+          v-if="$slots.footer"
+          class="modal-footer"
+        >
+          <slot name="footer"></slot>
+        </div>
+      </div>
+    </div>
+  </Teleport>
+</template>
+
+<script setup lang="ts">
+import { computed, watch, onMounted, onUnmounted } from 'vue'
+
+type ModalSize = 'sm' | 'md' | 'lg' | 'xl' | 'full'
+
+interface Props {
+  show: boolean
+  title: string
+  size?: ModalSize
+  closeOnEscape?: boolean
+  closeOnClickOutside?: boolean
+}
+
+interface Emits {
+  (e: 'close'): void
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  size: 'md',
+  closeOnEscape: true,
+  closeOnClickOutside: false
+})
+
+const emit = defineEmits<Emits>()
+
+const sizeClasses = computed(() => {
+  const sizes: Record<ModalSize, string> = {
+    sm: 'max-w-sm',
+    md: 'max-w-md',
+    lg: 'max-w-lg',
+    xl: 'max-w-xl',
+    full: 'max-w-4xl'
+  }
+  return sizes[props.size]
+})
+
+const handleClose = () => {
+  if (props.closeOnClickOutside) {
+    emit('close')
+  }
+}
+
+const handleEscape = (event: KeyboardEvent) => {
+  if (props.show && props.closeOnEscape && event.key === 'Escape') {
+    emit('close')
+  }
+}
+
+// Prevent body scroll when modal is open
+watch(
+  () => props.show,
+  (isOpen) => {
+    console.log('[Modal] show changed to:', isOpen)
+    if (isOpen) {
+      document.body.style.overflow = 'hidden'
+    } else {
+      document.body.style.overflow = ''
+    }
+  },
+  { immediate: true }
+)
+
+onMounted(() => {
+  document.addEventListener('keydown', handleEscape)
+})
+
+onUnmounted(() => {
+  document.removeEventListener('keydown', handleEscape)
+  document.body.style.overflow = ''
+})
+</script>

frontend/src/components/common/Pagination.vue

@@ -0,0 +1,214 @@
+<template>
+  <div class="flex items-center justify-between px-4 py-3 bg-white dark:bg-dark-800 border-t border-gray-200 dark:border-dark-700 sm:px-6">
+    <div class="flex items-center justify-between flex-1 sm:hidden">
+      <!-- Mobile pagination -->
+      <button
+        @click="goToPage(page - 1)"
+        :disabled="page === 1"
+        class="relative inline-flex items-center px-4 py-2 text-sm font-medium text-gray-700 dark:text-gray-200 bg-white dark:bg-dark-700 border border-gray-300 dark:border-dark-600 rounded-md hover:bg-gray-50 dark:hover:bg-dark-600 disabled:opacity-50 disabled:cursor-not-allowed"
+      >
+        {{ t('pagination.previous') }}
+      </button>
+      <span class="text-sm text-gray-700 dark:text-gray-300">
+        {{ t('pagination.pageOf', { page, total: totalPages }) }}
+      </span>
+      <button
+        @click="goToPage(page + 1)"
+        :disabled="page === totalPages"
+        class="relative inline-flex items-center px-4 py-2 ml-3 text-sm font-medium text-gray-700 dark:text-gray-200 bg-white dark:bg-dark-700 border border-gray-300 dark:border-dark-600 rounded-md hover:bg-gray-50 dark:hover:bg-dark-600 disabled:opacity-50 disabled:cursor-not-allowed"
+      >
+        {{ t('pagination.next') }}
+      </button>
+    </div>
+
+    <div class="hidden sm:flex sm:flex-1 sm:items-center sm:justify-between">
+      <!-- Desktop pagination info -->
+      <div class="flex items-center space-x-4">
+        <p class="text-sm text-gray-700 dark:text-gray-300">
+          {{ t('pagination.showing') }}
+          <span class="font-medium">{{ fromItem }}</span>
+          {{ t('pagination.to') }}
+          <span class="font-medium">{{ toItem }}</span>
+          {{ t('pagination.of') }}
+          <span class="font-medium">{{ total }}</span>
+          {{ t('pagination.results') }}
+        </p>
+
+        <!-- Page size selector -->
+        <div class="flex items-center space-x-2">
+          <span class="text-sm text-gray-700 dark:text-gray-300">{{ t('pagination.perPage') }}:</span>
+          <div class="w-20 page-size-select">
+            <Select
+              :model-value="pageSize"
+              :options="pageSizeSelectOptions"
+              @update:model-value="handlePageSizeChange"
+            />
+          </div>
+        </div>
+      </div>
+
+      <!-- Desktop pagination buttons -->
+      <nav
+        class="relative z-0 inline-flex -space-x-px rounded-md shadow-sm"
+        aria-label="Pagination"
+      >
+        <!-- Previous button -->
+        <button
+          @click="goToPage(page - 1)"
+          :disabled="page === 1"
+          class="relative inline-flex items-center px-2 py-2 text-sm font-medium text-gray-500 dark:text-gray-400 bg-white dark:bg-dark-700 border border-gray-300 dark:border-dark-600 rounded-l-md hover:bg-gray-50 dark:hover:bg-dark-600 disabled:opacity-50 disabled:cursor-not-allowed"
+          :aria-label="t('pagination.previous')"
+        >
+          <svg class="w-5 h-5" fill="currentColor" viewBox="0 0 20 20">
+            <path
+              fill-rule="evenodd"
+              d="M12.707 5.293a1 1 0 010 1.414L9.414 10l3.293 3.293a1 1 0 01-1.414 1.414l-4-4a1 1 0 010-1.414l4-4a1 1 0 011.414 0z"
+              clip-rule="evenodd"
+            />
+          </svg>
+        </button>
+
+        <!-- Page numbers -->
+        <button
+          v-for="pageNum in visiblePages"
+          :key="pageNum"
+          @click="typeof pageNum === 'number' && goToPage(pageNum)"
+          :disabled="typeof pageNum !== 'number'"
+          :class="[
+            'relative inline-flex items-center px-4 py-2 text-sm font-medium border',
+            pageNum === page
+              ? 'z-10 bg-primary-50 dark:bg-primary-900/30 border-primary-500 text-primary-600 dark:text-primary-400'
+              : 'bg-white dark:bg-dark-700 border-gray-300 dark:border-dark-600 text-gray-700 dark:text-gray-300 hover:bg-gray-50 dark:hover:bg-dark-600',
+            typeof pageNum !== 'number' && 'cursor-default'
+          ]"
+          :aria-label="typeof pageNum === 'number' ? t('pagination.goToPage', { page: pageNum }) : undefined"
+          :aria-current="pageNum === page ? 'page' : undefined"
+        >
+          {{ pageNum }}
+        </button>
+
+        <!-- Next button -->
+        <button
+          @click="goToPage(page + 1)"
+          :disabled="page === totalPages"
+          class="relative inline-flex items-center px-2 py-2 text-sm font-medium text-gray-500 dark:text-gray-400 bg-white dark:bg-dark-700 border border-gray-300 dark:border-dark-600 rounded-r-md hover:bg-gray-50 dark:hover:bg-dark-600 disabled:opacity-50 disabled:cursor-not-allowed"
+          :aria-label="t('pagination.next')"
+        >
+          <svg class="w-5 h-5" fill="currentColor" viewBox="0 0 20 20">
+            <path
+              fill-rule="evenodd"
+              d="M7.293 14.707a1 1 0 010-1.414L10.586 10 7.293 6.707a1 1 0 011.414-1.414l4 4a1 1 0 010 1.414l-4 4a1 1 0 01-1.414 0z"
+              clip-rule="evenodd"
+            />
+          </svg>
+        </button>
+      </nav>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed } from 'vue'
+import { useI18n } from 'vue-i18n'
+import Select from './Select.vue'
+
+const { t } = useI18n()
+
+interface Props {
+  total: number
+  page: number
+  pageSize: number
+  pageSizeOptions?: number[]
+}
+
+interface Emits {
+  (e: 'update:page', page: number): void
+  (e: 'update:pageSize', pageSize: number): void
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  pageSizeOptions: () => [10, 20, 50, 100]
+})
+
+const emit = defineEmits<Emits>()
+
+const totalPages = computed(() => Math.ceil(props.total / props.pageSize))
+
+const fromItem = computed(() => {
+  if (props.total === 0) return 0
+  return (props.page - 1) * props.pageSize + 1
+})
+
+const toItem = computed(() => {
+  const to = props.page * props.pageSize
+  return to > props.total ? props.total : to
+})
+
+const pageSizeSelectOptions = computed(() => {
+  return props.pageSizeOptions.map(size => ({
+    value: size,
+    label: String(size)
+  }))
+})
+
+const visiblePages = computed(() => {
+  const pages: (number | string)[] = []
+  const maxVisible = 7
+  const total = totalPages.value
+
+  if (total <= maxVisible) {
+    // Show all pages if total is small
+    for (let i = 1; i <= total; i++) {
+      pages.push(i)
+    }
+  } else {
+    // Always show first page
+    pages.push(1)
+
+    const start = Math.max(2, props.page - 2)
+    const end = Math.min(total - 1, props.page + 2)
+
+    // Add ellipsis before if needed
+    if (start > 2) {
+      pages.push('...')
+    }
+
+    // Add middle pages
+    for (let i = start; i <= end; i++) {
+      pages.push(i)
+    }
+
+    // Add ellipsis after if needed
+    if (end < total - 1) {
+      pages.push('...')
+    }
+
+    // Always show last page
+    pages.push(total)
+  }
+
+  return pages
+})
+
+const goToPage = (newPage: number) => {
+  if (newPage >= 1 && newPage <= totalPages.value && newPage !== props.page) {
+    emit('update:page', newPage)
+  }
+}
+
+const handlePageSizeChange = (value: string | number | null) => {
+  if (value === null) return
+  const newPageSize = typeof value === 'string' ? parseInt(value) : value
+  emit('update:pageSize', newPageSize)
+  // Reset to first page when page size changes
+  if (props.page !== 1) {
+    emit('update:page', 1)
+  }
+}
+</script>
+
+<style scoped>
+.page-size-select :deep(.select-trigger) {
+  @apply py-1.5 px-3 text-sm;
+}
+</style>

frontend/src/components/common/ProxySelector.vue

@@ -0,0 +1,426 @@
+<template>
+  <div class="relative" ref="containerRef">
+    <button
+      type="button"
+      @click="toggle"
+      :disabled="disabled"
+      :class="[
+        'select-trigger',
+        isOpen && 'select-trigger-open',
+        disabled && 'select-trigger-disabled'
+      ]"
+    >
+      <span class="select-value">
+        {{ selectedLabel }}
+      </span>
+      <span class="select-icon">
+        <svg
+          :class="['w-5 h-5 transition-transform duration-200', isOpen && 'rotate-180']"
+          fill="none"
+          stroke="currentColor"
+          viewBox="0 0 24 24"
+          stroke-width="1.5"
+        >
+          <path stroke-linecap="round" stroke-linejoin="round" d="M19.5 8.25l-7.5 7.5-7.5-7.5" />
+        </svg>
+      </span>
+    </button>
+
+    <Transition name="select-dropdown">
+      <div
+        v-if="isOpen"
+        class="select-dropdown"
+      >
+        <!-- Search and Batch Test Header -->
+        <div class="select-header">
+          <div class="select-search">
+            <svg class="w-4 h-4 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24" stroke-width="1.5">
+              <path stroke-linecap="round" stroke-linejoin="round" d="M21 21l-5.197-5.197m0 0A7.5 7.5 0 105.196 5.196a7.5 7.5 0 0010.607 10.607z" />
+            </svg>
+            <input
+              ref="searchInputRef"
+              v-model="searchQuery"
+              type="text"
+              :placeholder="t('admin.proxies.searchProxies')"
+              class="select-search-input"
+              @click.stop
+            />
+          </div>
+          <button
+            v-if="proxies.length > 0"
+            type="button"
+            @click.stop="handleBatchTest"
+            :disabled="batchTesting"
+            class="batch-test-btn"
+            :title="t('admin.proxies.batchTest')"
+          >
+            <svg v-if="batchTesting" class="w-4 h-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>
+            <svg v-else class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24" stroke-width="1.5">
+              <path stroke-linecap="round" stroke-linejoin="round" d="M5.25 5.653c0-.856.917-1.398 1.667-.986l11.54 6.347a1.125 1.125 0 010 1.972l-11.54 6.347a1.125 1.125 0 01-1.667-.986V5.653z" />
+            </svg>
+          </button>
+        </div>
+
+        <!-- Options list -->
+        <div class="select-options">
+          <!-- No Proxy option -->
+          <div
+            @click="selectOption(null)"
+            :class="[
+              'select-option',
+              modelValue === null && 'select-option-selected'
+            ]"
+          >
+            <span class="select-option-label">{{ t('admin.accounts.noProxy') }}</span>
+            <svg
+              v-if="modelValue === null"
+              class="w-4 h-4 text-primary-500"
+              fill="none"
+              stroke="currentColor"
+              viewBox="0 0 24 24"
+              stroke-width="2"
+            >
+              <path stroke-linecap="round" stroke-linejoin="round" d="M4.5 12.75l6 6 9-13.5" />
+            </svg>
+          </div>
+
+          <!-- Proxy options -->
+          <div
+            v-for="proxy in filteredProxies"
+            :key="proxy.id"
+            @click="selectOption(proxy.id)"
+            :class="[
+              'select-option',
+              modelValue === proxy.id && 'select-option-selected'
+            ]"
+          >
+            <div class="flex-1 min-w-0">
+              <div class="flex items-center gap-2">
+                <span class="truncate font-medium">{{ proxy.name }}</span>
+                <!-- Account count badge -->
+                <span
+                  v-if="proxy.account_count !== undefined"
+                  class="flex-shrink-0 inline-flex items-center px-1.5 py-0.5 rounded text-xs bg-gray-100 dark:bg-dark-600 text-gray-600 dark:text-gray-400"
+                >
+                  {{ proxy.account_count }}
+                </span>
+                <!-- Test result badges -->
+                <template v-if="testResults[proxy.id]">
+                  <span
+                    v-if="testResults[proxy.id].success"
+                    class="flex-shrink-0 inline-flex items-center gap-1 px-1.5 py-0.5 rounded text-xs bg-emerald-100 dark:bg-emerald-900/30 text-emerald-700 dark:text-emerald-400"
+                  >
+                    <span v-if="testResults[proxy.id].country">{{ testResults[proxy.id].country }}</span>
+                    <span v-if="testResults[proxy.id].latency_ms">{{ testResults[proxy.id].latency_ms }}ms</span>
+                  </span>
+                  <span
+                    v-else
+                    class="flex-shrink-0 inline-flex items-center px-1.5 py-0.5 rounded text-xs bg-red-100 dark:bg-red-900/30 text-red-700 dark:text-red-400"
+                  >
+                    {{ t('admin.proxies.testFailed') }}
+                  </span>
+                </template>
+              </div>
+              <div class="text-xs text-gray-500 dark:text-gray-400 truncate">
+                {{ proxy.protocol }}://{{ proxy.host }}:{{ proxy.port }}
+              </div>
+            </div>
+
+            <!-- Individual test button -->
+            <button
+              type="button"
+              @click.stop="handleTestProxy(proxy)"
+              :disabled="testingProxyIds.has(proxy.id)"
+              class="test-btn"
+              :title="t('admin.proxies.testConnection')"
+            >
+              <svg v-if="testingProxyIds.has(proxy.id)" class="w-3.5 h-3.5 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>
+              <svg v-else class="w-3.5 h-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24" stroke-width="1.5">
+                <path stroke-linecap="round" stroke-linejoin="round" d="M5.25 5.653c0-.856.917-1.398 1.667-.986l11.54 6.347a1.125 1.125 0 010 1.972l-11.54 6.347a1.125 1.125 0 01-1.667-.986V5.653z" />
+              </svg>
+            </button>
+
+            <svg
+              v-if="modelValue === proxy.id"
+              class="w-4 h-4 text-primary-500 flex-shrink-0"
+              fill="none"
+              stroke="currentColor"
+              viewBox="0 0 24 24"
+              stroke-width="2"
+            >
+              <path stroke-linecap="round" stroke-linejoin="round" d="M4.5 12.75l6 6 9-13.5" />
+            </svg>
+          </div>
+
+          <!-- Empty state -->
+          <div v-if="filteredProxies.length === 0 && searchQuery" class="select-empty">
+            {{ t('common.noOptionsFound') }}
+          </div>
+        </div>
+      </div>
+    </Transition>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, reactive, computed, onMounted, onUnmounted, nextTick } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { adminAPI } from '@/api/admin'
+import type { Proxy } from '@/types'
+
+const { t } = useI18n()
+
+interface ProxyTestResult {
+  success: boolean
+  message: string
+  latency_ms?: number
+  ip_address?: string
+  city?: string
+  region?: string
+  country?: string
+}
+
+interface Props {
+  modelValue: number | null
+  proxies: Proxy[]
+  disabled?: boolean
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  disabled: false,
+})
+
+const emit = defineEmits<{
+  'update:modelValue': [value: number | null]
+}>()
+
+const isOpen = ref(false)
+const searchQuery = ref('')
+const containerRef = ref<HTMLElement | null>(null)
+const searchInputRef = ref<HTMLInputElement | null>(null)
+
+// Test state
+const testResults = reactive<Record<number, ProxyTestResult>>({})
+const testingProxyIds = reactive(new Set<number>())
+const batchTesting = ref(false)
+
+const selectedProxy = computed(() => {
+  if (props.modelValue === null) return null
+  return props.proxies.find(p => p.id === props.modelValue) || null
+})
+
+const selectedLabel = computed(() => {
+  if (!selectedProxy.value) {
+    return t('admin.accounts.noProxy')
+  }
+  const proxy = selectedProxy.value
+  return `${proxy.name} (${proxy.protocol}://${proxy.host}:${proxy.port})`
+})
+
+const filteredProxies = computed(() => {
+  if (!searchQuery.value) {
+    return props.proxies
+  }
+  const query = searchQuery.value.toLowerCase()
+  return props.proxies.filter(proxy => {
+    const name = proxy.name.toLowerCase()
+    const host = proxy.host.toLowerCase()
+    return name.includes(query) || host.includes(query)
+  })
+})
+
+const toggle = () => {
+  if (props.disabled) return
+  isOpen.value = !isOpen.value
+  if (isOpen.value) {
+    nextTick(() => {
+      searchInputRef.value?.focus()
+    })
+  }
+}
+
+const selectOption = (value: number | null) => {
+  emit('update:modelValue', value)
+  isOpen.value = false
+  searchQuery.value = ''
+}
+
+const handleTestProxy = async (proxy: Proxy) => {
+  if (testingProxyIds.has(proxy.id)) return
+
+  testingProxyIds.add(proxy.id)
+  try {
+    const result = await adminAPI.proxies.testProxy(proxy.id)
+    testResults[proxy.id] = result
+  } catch (error: any) {
+    testResults[proxy.id] = {
+      success: false,
+      message: error.response?.data?.detail || 'Test failed'
+    }
+  } finally {
+    testingProxyIds.delete(proxy.id)
+  }
+}
+
+const handleBatchTest = async () => {
+  if (batchTesting.value || props.proxies.length === 0) return
+
+  batchTesting.value = true
+
+  // Test all proxies in parallel
+  const testPromises = props.proxies.map(async (proxy) => {
+    testingProxyIds.add(proxy.id)
+    try {
+      const result = await adminAPI.proxies.testProxy(proxy.id)
+      testResults[proxy.id] = result
+    } catch (error: any) {
+      testResults[proxy.id] = {
+        success: false,
+        message: error.response?.data?.detail || 'Test failed'
+      }
+    } finally {
+      testingProxyIds.delete(proxy.id)
+    }
+  })
+
+  await Promise.all(testPromises)
+  batchTesting.value = false
+}
+
+const handleClickOutside = (event: MouseEvent) => {
+  if (containerRef.value && !containerRef.value.contains(event.target as Node)) {
+    isOpen.value = false
+    searchQuery.value = ''
+  }
+}
+
+const handleEscape = (event: KeyboardEvent) => {
+  if (event.key === 'Escape' && isOpen.value) {
+    isOpen.value = false
+    searchQuery.value = ''
+  }
+}
+
+onMounted(() => {
+  document.addEventListener('click', handleClickOutside)
+  document.addEventListener('keydown', handleEscape)
+})
+
+onUnmounted(() => {
+  document.removeEventListener('click', handleClickOutside)
+  document.removeEventListener('keydown', handleEscape)
+})
+</script>
+
+<style scoped>
+.select-trigger {
+  @apply w-full flex items-center justify-between gap-2;
+  @apply px-4 py-2.5 rounded-xl text-sm;
+  @apply bg-white dark:bg-dark-800;
+  @apply border border-gray-200 dark:border-dark-600;
+  @apply text-gray-900 dark:text-gray-100;
+  @apply transition-all duration-200;
+  @apply focus:outline-none focus:ring-2 focus:ring-primary-500/30 focus:border-primary-500;
+  @apply hover:border-gray-300 dark:hover:border-dark-500;
+  @apply cursor-pointer;
+}
+
+.select-trigger-open {
+  @apply ring-2 ring-primary-500/30 border-primary-500;
+}
+
+.select-trigger-disabled {
+  @apply bg-gray-100 dark:bg-dark-900 cursor-not-allowed opacity-60;
+}
+
+.select-value {
+  @apply flex-1 text-left truncate;
+}
+
+.select-icon {
+  @apply flex-shrink-0 text-gray-400 dark:text-dark-400;
+}
+
+.select-dropdown {
+  @apply absolute z-[100] w-full mt-2;
+  @apply bg-white dark:bg-dark-800;
+  @apply rounded-xl;
+  @apply border border-gray-200 dark:border-dark-700;
+  @apply shadow-lg shadow-black/10 dark:shadow-black/30;
+  @apply overflow-hidden;
+}
+
+.select-header {
+  @apply flex items-center gap-2 px-3 py-2;
+  @apply border-b border-gray-100 dark:border-dark-700;
+}
+
+.select-search {
+  @apply flex-1 flex items-center gap-2;
+}
+
+.select-search-input {
+  @apply flex-1 bg-transparent text-sm;
+  @apply text-gray-900 dark:text-gray-100;
+  @apply placeholder:text-gray-400 dark:placeholder:text-dark-400;
+  @apply focus:outline-none;
+}
+
+.batch-test-btn {
+  @apply flex-shrink-0 p-1.5 rounded-lg;
+  @apply text-gray-500 hover:text-emerald-600 dark:hover:text-emerald-400;
+  @apply hover:bg-emerald-50 dark:hover:bg-emerald-900/20;
+  @apply transition-colors disabled:opacity-50 disabled:cursor-not-allowed;
+}
+
+.select-options {
+  @apply max-h-60 overflow-y-auto py-1;
+}
+
+.select-option {
+  @apply flex items-center justify-between gap-2;
+  @apply px-4 py-2.5 text-sm;
+  @apply text-gray-700 dark:text-gray-300;
+  @apply cursor-pointer transition-colors duration-150;
+  @apply hover:bg-gray-50 dark:hover:bg-dark-700;
+}
+
+.select-option-selected {
+  @apply bg-primary-50 dark:bg-primary-900/20;
+  @apply text-primary-700 dark:text-primary-300;
+}
+
+.select-option-label {
+  @apply truncate;
+}
+
+.select-empty {
+  @apply px-4 py-8 text-center text-sm;
+  @apply text-gray-500 dark:text-dark-400;
+}
+
+.test-btn {
+  @apply flex-shrink-0 p-1 rounded;
+  @apply text-gray-400 hover:text-emerald-600 dark:hover:text-emerald-400;
+  @apply hover:bg-emerald-50 dark:hover:bg-emerald-900/20;
+  @apply transition-colors disabled:opacity-50 disabled:cursor-not-allowed;
+}
+
+/* Dropdown animation */
+.select-dropdown-enter-active,
+.select-dropdown-leave-active {
+  transition: all 0.2s ease;
+}
+
+.select-dropdown-enter-from,
+.select-dropdown-leave-to {
+  opacity: 0;
+  transform: translateY(-8px);
+}
+</style>

frontend/src/components/common/README.md

@@ -0,0 +1,243 @@
+# Common Components
+
+This directory contains reusable Vue 3 components built with Composition API, TypeScript, and TailwindCSS.
+
+## Components
+
+### DataTable.vue
+A generic data table component with sorting, loading states, and custom cell rendering.
+
+**Props:**
+- `columns: Column[]` - Array of column definitions with key, label, sortable, and formatter
+- `data: any[]` - Array of data objects to display
+- `loading?: boolean` - Show loading skeleton
+
+**Slots:**
+- `empty` - Custom empty state content
+- `cell-{key}` - Custom cell renderer for specific column (receives `row` and `value`)
+
+**Usage:**
+```vue
+<DataTable
+  :columns="[
+    { key: 'name', label: 'Name', sortable: true },
+    { key: 'email', label: 'Email' },
+    { key: 'status', label: 'Status', formatter: (val) => val.toUpperCase() }
+  ]"
+  :data="users"
+  :loading="isLoading"
+>
+  <template #cell-actions="{ row }">
+    <button @click="editUser(row)">Edit</button>
+  </template>
+</DataTable>
+```
+
+---
+
+### Pagination.vue
+Pagination component with page numbers, navigation, and page size selector.
+
+**Props:**
+- `total: number` - Total number of items
+- `page: number` - Current page (1-indexed)
+- `pageSize: number` - Items per page
+- `pageSizeOptions?: number[]` - Available page size options (default: [10, 20, 50, 100])
+
+**Events:**
+- `update:page` - Emitted when page changes
+- `update:pageSize` - Emitted when page size changes
+
+**Usage:**
+```vue
+<Pagination
+  :total="totalUsers"
+  :page="currentPage"
+  :pageSize="pageSize"
+  @update:page="currentPage = $event"
+  @update:pageSize="pageSize = $event"
+/>
+```
+
+---
+
+### Modal.vue
+Modal dialog with customizable size and close behavior.
+
+**Props:**
+- `show: boolean` - Control modal visibility
+- `title: string` - Modal title
+- `size?: 'sm' | 'md' | 'lg' | 'xl' | 'full'` - Modal size (default: 'md')
+- `closeOnEscape?: boolean` - Close on Escape key (default: true)
+- `closeOnClickOutside?: boolean` - Close on backdrop click (default: true)
+
+**Events:**
+- `close` - Emitted when modal should close
+
+**Slots:**
+- `default` - Modal body content
+- `footer` - Modal footer content
+
+**Usage:**
+```vue
+<Modal :show="showModal" title="Edit User" size="lg" @close="showModal = false">
+  <form @submit.prevent="saveUser">
+    <!-- Form content -->
+  </form>
+
+  <template #footer>
+    <button @click="showModal = false">Cancel</button>
+    <button @click="saveUser">Save</button>
+  </template>
+</Modal>
+```
+
+---
+
+### ConfirmDialog.vue
+Confirmation dialog built on top of Modal component.
+
+**Props:**
+- `show: boolean` - Control dialog visibility
+- `title: string` - Dialog title
+- `message: string` - Confirmation message
+- `confirmText?: string` - Confirm button text (default: 'Confirm')
+- `cancelText?: string` - Cancel button text (default: 'Cancel')
+- `danger?: boolean` - Use danger/red styling (default: false)
+
+**Events:**
+- `confirm` - Emitted when user confirms
+- `cancel` - Emitted when user cancels
+
+**Usage:**
+```vue
+<ConfirmDialog
+  :show="showDeleteConfirm"
+  title="Delete User"
+  message="Are you sure you want to delete this user? This action cannot be undone."
+  confirm-text="Delete"
+  cancel-text="Cancel"
+  danger
+  @confirm="deleteUser"
+  @cancel="showDeleteConfirm = false"
+/>
+```
+
+---
+
+### StatCard.vue
+Statistics card component for displaying metrics with optional change indicators.
+
+**Props:**
+- `title: string` - Card title
+- `value: number | string` - Main value to display
+- `icon?: Component` - Icon component
+- `change?: number` - Percentage change value
+- `changeType?: 'up' | 'down' | 'neutral'` - Change direction (default: 'neutral')
+- `formatValue?: (value) => string` - Custom value formatter
+
+**Usage:**
+```vue
+<StatCard
+  title="Total Users"
+  :value="1234"
+  :icon="UserIcon"
+  :change="12.5"
+  change-type="up"
+/>
+```
+
+---
+
+### Toast.vue
+Toast notification component that automatically displays toasts from the app store.
+
+**Usage:**
+```vue
+<!-- Add once in App.vue or layout -->
+<Toast />
+```
+
+```typescript
+// Trigger toasts from anywhere using the app store
+import { useAppStore } from '@/stores/app'
+
+const appStore = useAppStore()
+
+appStore.addToast({
+  type: 'success',
+  title: 'Success!',
+  message: 'User created successfully',
+  duration: 3000
+})
+
+appStore.addToast({
+  type: 'error',
+  message: 'Failed to delete user'
+})
+```
+
+---
+
+### LoadingSpinner.vue
+Simple animated loading spinner.
+
+**Props:**
+- `size?: 'sm' | 'md' | 'lg' | 'xl'` - Spinner size (default: 'md')
+- `color?: 'primary' | 'secondary' | 'white' | 'gray'` - Spinner color (default: 'primary')
+
+**Usage:**
+```vue
+<LoadingSpinner size="lg" color="primary" />
+```
+
+---
+
+### EmptyState.vue
+Empty state placeholder with icon, message, and optional action button.
+
+**Props:**
+- `icon?: Component` - Icon component
+- `title: string` - Empty state title
+- `description: string` - Empty state description
+- `actionText?: string` - Action button text
+- `actionTo?: string | object` - Router link destination
+- `actionIcon?: boolean` - Show plus icon in button (default: true)
+
+**Slots:**
+- `icon` - Custom icon content
+- `action` - Custom action button/link
+
+**Usage:**
+```vue
+<EmptyState
+  title="No users found"
+  description="Get started by creating your first user account."
+  action-text="Add User"
+  :action-to="{ name: 'users-create' }"
+/>
+```
+
+## Import
+
+You can import components individually:
+
+```typescript
+import { DataTable, Pagination, Modal } from '@/components/common'
+```
+
+Or import specific components:
+
+```typescript
+import DataTable from '@/components/common/DataTable.vue'
+```
+
+## Features
+
+All components include:
+- **TypeScript support** with proper type definitions
+- **Accessibility** with ARIA attributes and keyboard navigation
+- **Responsive design** with mobile-friendly layouts
+- **TailwindCSS styling** for consistent design
+- **Vue 3 Composition API** with `<script setup>`
+- **Slot support** for customization

frontend/src/components/common/Select.vue

@@ -0,0 +1,319 @@
+<template>
+  <div class="relative" ref="containerRef">
+    <button
+      type="button"
+      @click="toggle"
+      :disabled="disabled"
+      :class="[
+        'select-trigger',
+        isOpen && 'select-trigger-open',
+        error && 'select-trigger-error',
+        disabled && 'select-trigger-disabled'
+      ]"
+    >
+      <span class="select-value">
+        <slot name="selected" :option="selectedOption">
+          {{ selectedLabel }}
+        </slot>
+      </span>
+      <span class="select-icon">
+        <svg
+          :class="['w-5 h-5 transition-transform duration-200', isOpen && 'rotate-180']"
+          fill="none"
+          stroke="currentColor"
+          viewBox="0 0 24 24"
+          stroke-width="1.5"
+        >
+          <path stroke-linecap="round" stroke-linejoin="round" d="M19.5 8.25l-7.5 7.5-7.5-7.5" />
+        </svg>
+      </span>
+    </button>
+
+    <Transition name="select-dropdown">
+      <div
+        v-if="isOpen"
+        class="select-dropdown"
+      >
+        <!-- Search input -->
+        <div v-if="searchable" class="select-search">
+          <svg class="w-4 h-4 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24" stroke-width="1.5">
+            <path stroke-linecap="round" stroke-linejoin="round" d="M21 21l-5.197-5.197m0 0A7.5 7.5 0 105.196 5.196a7.5 7.5 0 0010.607 10.607z" />
+          </svg>
+          <input
+            ref="searchInputRef"
+            v-model="searchQuery"
+            type="text"
+            :placeholder="searchPlaceholderText"
+            class="select-search-input"
+            @click.stop
+          />
+        </div>
+
+        <!-- Options list -->
+        <div class="select-options">
+          <div
+            v-for="option in filteredOptions"
+            :key="getOptionValue(option)"
+            @click="selectOption(option)"
+            :class="[
+              'select-option',
+              isSelected(option) && 'select-option-selected'
+            ]"
+          >
+            <slot name="option" :option="option" :selected="isSelected(option)">
+              <span class="select-option-label">{{ getOptionLabel(option) }}</span>
+              <svg
+                v-if="isSelected(option)"
+                class="w-4 h-4 text-primary-500"
+                fill="none"
+                stroke="currentColor"
+                viewBox="0 0 24 24"
+                stroke-width="2"
+              >
+                <path stroke-linecap="round" stroke-linejoin="round" d="M4.5 12.75l6 6 9-13.5" />
+              </svg>
+            </slot>
+          </div>
+
+          <!-- Empty state -->
+          <div v-if="filteredOptions.length === 0" class="select-empty">
+            {{ emptyTextDisplay }}
+          </div>
+        </div>
+      </div>
+    </Transition>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, watch, onMounted, onUnmounted, nextTick } from 'vue'
+import { useI18n } from 'vue-i18n'
+
+const { t } = useI18n()
+
+export interface SelectOption {
+  value: string | number | null
+  label: string
+  disabled?: boolean
+  [key: string]: unknown
+}
+
+interface Props {
+  modelValue: string | number | null | undefined
+  options: SelectOption[] | Array<Record<string, unknown>>
+  placeholder?: string
+  disabled?: boolean
+  error?: boolean
+  searchable?: boolean
+  searchPlaceholder?: string
+  emptyText?: string
+  valueKey?: string
+  labelKey?: string
+}
+
+interface Emits {
+  (e: 'update:modelValue', value: string | number | null): void
+  (e: 'change', value: string | number | null, option: SelectOption | null): void
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  disabled: false,
+  error: false,
+  searchable: false,
+  valueKey: 'value',
+  labelKey: 'label'
+})
+
+// Use computed for i18n default values
+const placeholderText = computed(() => props.placeholder ?? t('common.selectOption'))
+const searchPlaceholderText = computed(() => props.searchPlaceholder ?? t('common.searchPlaceholder'))
+const emptyTextDisplay = computed(() => props.emptyText ?? t('common.noOptionsFound'))
+
+const emit = defineEmits<Emits>()
+
+const isOpen = ref(false)
+const searchQuery = ref('')
+const containerRef = ref<HTMLElement | null>(null)
+const searchInputRef = ref<HTMLInputElement | null>(null)
+
+const getOptionValue = (option: SelectOption | Record<string, unknown>): string | number | null => {
+  if (typeof option === 'object' && option !== null) {
+    return option[props.valueKey] as string | number | null
+  }
+  return option as string | number | null
+}
+
+const getOptionLabel = (option: SelectOption | Record<string, unknown>): string => {
+  if (typeof option === 'object' && option !== null) {
+    return String(option[props.labelKey] ?? '')
+  }
+  return String(option ?? '')
+}
+
+const selectedOption = computed(() => {
+  return props.options.find(opt => getOptionValue(opt) === props.modelValue) || null
+})
+
+const selectedLabel = computed(() => {
+  if (selectedOption.value) {
+    return getOptionLabel(selectedOption.value)
+  }
+  return placeholderText.value
+})
+
+const filteredOptions = computed(() => {
+  if (!props.searchable || !searchQuery.value) {
+    return props.options
+  }
+  const query = searchQuery.value.toLowerCase()
+  return props.options.filter(opt => {
+    const label = getOptionLabel(opt).toLowerCase()
+    return label.includes(query)
+  })
+})
+
+const isSelected = (option: SelectOption | Record<string, unknown>): boolean => {
+  return getOptionValue(option) === props.modelValue
+}
+
+const toggle = () => {
+  if (props.disabled) return
+  isOpen.value = !isOpen.value
+  if (isOpen.value && props.searchable) {
+    nextTick(() => {
+      searchInputRef.value?.focus()
+    })
+  }
+}
+
+const selectOption = (option: SelectOption | Record<string, unknown>) => {
+  const value = getOptionValue(option)
+  emit('update:modelValue', value)
+  emit('change', value, option as SelectOption)
+  isOpen.value = false
+  searchQuery.value = ''
+}
+
+const handleClickOutside = (event: MouseEvent) => {
+  if (containerRef.value && !containerRef.value.contains(event.target as Node)) {
+    isOpen.value = false
+    searchQuery.value = ''
+  }
+}
+
+const handleEscape = (event: KeyboardEvent) => {
+  if (event.key === 'Escape' && isOpen.value) {
+    isOpen.value = false
+    searchQuery.value = ''
+  }
+}
+
+watch(isOpen, (open) => {
+  if (!open) {
+    searchQuery.value = ''
+  }
+})
+
+onMounted(() => {
+  document.addEventListener('click', handleClickOutside)
+  document.addEventListener('keydown', handleEscape)
+})
+
+onUnmounted(() => {
+  document.removeEventListener('click', handleClickOutside)
+  document.removeEventListener('keydown', handleEscape)
+})
+</script>
+
+<style scoped>
+.select-trigger {
+  @apply w-full flex items-center justify-between gap-2;
+  @apply px-4 py-2.5 rounded-xl text-sm;
+  @apply bg-white dark:bg-dark-800;
+  @apply border border-gray-200 dark:border-dark-600;
+  @apply text-gray-900 dark:text-gray-100;
+  @apply transition-all duration-200;
+  @apply focus:outline-none focus:ring-2 focus:ring-primary-500/30 focus:border-primary-500;
+  @apply hover:border-gray-300 dark:hover:border-dark-500;
+  @apply cursor-pointer;
+}
+
+.select-trigger-open {
+  @apply ring-2 ring-primary-500/30 border-primary-500;
+}
+
+.select-trigger-error {
+  @apply border-red-500 focus:ring-red-500/30 focus:border-red-500;
+}
+
+.select-trigger-disabled {
+  @apply bg-gray-100 dark:bg-dark-900 cursor-not-allowed opacity-60;
+}
+
+.select-value {
+  @apply flex-1 text-left truncate;
+}
+
+.select-icon {
+  @apply flex-shrink-0 text-gray-400 dark:text-dark-400;
+}
+
+.select-dropdown {
+  @apply absolute z-[100] w-full mt-2;
+  @apply bg-white dark:bg-dark-800;
+  @apply rounded-xl;
+  @apply border border-gray-200 dark:border-dark-700;
+  @apply shadow-lg shadow-black/10 dark:shadow-black/30;
+  @apply overflow-hidden;
+}
+
+.select-search {
+  @apply flex items-center gap-2 px-3 py-2;
+  @apply border-b border-gray-100 dark:border-dark-700;
+}
+
+.select-search-input {
+  @apply flex-1 bg-transparent text-sm;
+  @apply text-gray-900 dark:text-gray-100;
+  @apply placeholder:text-gray-400 dark:placeholder:text-dark-400;
+  @apply focus:outline-none;
+}
+
+.select-options {
+  @apply max-h-60 overflow-y-auto py-1;
+}
+
+.select-option {
+  @apply flex items-center justify-between gap-2;
+  @apply px-4 py-2.5 text-sm;
+  @apply text-gray-700 dark:text-gray-300;
+  @apply cursor-pointer transition-colors duration-150;
+  @apply hover:bg-gray-50 dark:hover:bg-dark-700;
+}
+
+.select-option-selected {
+  @apply bg-primary-50 dark:bg-primary-900/20;
+  @apply text-primary-700 dark:text-primary-300;
+}
+
+.select-option-label {
+  @apply truncate;
+}
+
+.select-empty {
+  @apply px-4 py-8 text-center text-sm;
+  @apply text-gray-500 dark:text-dark-400;
+}
+
+/* Dropdown animation */
+.select-dropdown-enter-active,
+.select-dropdown-leave-active {
+  transition: all 0.2s ease;
+}
+
+.select-dropdown-enter-from,
+.select-dropdown-leave-to {
+  opacity: 0;
+  transform: translateY(-8px);
+}
+</style>

frontend/src/components/common/StatCard.vue

@@ -0,0 +1,94 @@
+<template>
+  <div class="stat-card">
+    <div :class="['stat-icon', iconClass]">
+      <component
+        v-if="icon"
+        :is="icon"
+        class="w-6 h-6"
+        aria-hidden="true"
+      />
+    </div>
+    <div class="flex-1 min-w-0">
+      <p class="stat-label truncate">{{ title }}</p>
+      <div class="flex items-baseline gap-2 mt-1">
+        <p class="stat-value">{{ formattedValue }}</p>
+        <span
+          v-if="change !== undefined"
+          :class="['stat-trend', trendClass]"
+        >
+          <svg
+            v-if="changeType !== 'neutral'"
+            :class="['w-3 h-3', changeType === 'down' && 'rotate-180']"
+            fill="currentColor"
+            viewBox="0 0 20 20"
+          >
+            <path
+              fill-rule="evenodd"
+              d="M5.293 9.707a1 1 0 010-1.414l4-4a1 1 0 011.414 0l4 4a1 1 0 01-1.414 1.414L11 7.414V15a1 1 0 11-2 0V7.414L6.707 9.707a1 1 0 01-1.414 0z"
+              clip-rule="evenodd"
+            />
+          </svg>
+          {{ formattedChange }}
+        </span>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed } from 'vue'
+import type { Component } from 'vue'
+
+type ChangeType = 'up' | 'down' | 'neutral'
+type IconVariant = 'primary' | 'success' | 'warning' | 'danger'
+
+interface Props {
+  title: string
+  value: number | string
+  icon?: Component
+  iconVariant?: IconVariant
+  change?: number
+  changeType?: ChangeType
+  formatValue?: (value: number | string) => string
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  changeType: 'neutral',
+  iconVariant: 'primary'
+})
+
+const formattedValue = computed(() => {
+  if (props.formatValue) {
+    return props.formatValue(props.value)
+  }
+  if (typeof props.value === 'number') {
+    return props.value.toLocaleString()
+  }
+  return props.value
+})
+
+const formattedChange = computed(() => {
+  if (props.change === undefined) return ''
+  const absChange = Math.abs(props.change)
+  return `${absChange}%`
+})
+
+const iconClass = computed(() => {
+  const classes: Record<IconVariant, string> = {
+    primary: 'stat-icon-primary',
+    success: 'stat-icon-success',
+    warning: 'stat-icon-warning',
+    danger: 'stat-icon-danger'
+  }
+  return classes[props.iconVariant]
+})
+
+const trendClass = computed(() => {
+  const classes: Record<ChangeType, string> = {
+    up: 'stat-trend-up',
+    down: 'stat-trend-down',
+    neutral: 'text-gray-500 dark:text-dark-400'
+  }
+  return classes[props.changeType]
+})
+</script>

frontend/src/components/common/SubscriptionProgressMini.vue

@@ -0,0 +1,267 @@
+<template>
+  <div v-if="hasActiveSubscriptions" class="relative" ref="containerRef">
+    <!-- Mini Progress Display -->
+    <button
+      @click="toggleTooltip"
+      class="flex items-center gap-2 px-3 py-1.5 rounded-xl bg-purple-50 dark:bg-purple-900/20 hover:bg-purple-100 dark:hover:bg-purple-900/30 transition-colors cursor-pointer"
+      :title="t('subscriptionProgress.viewDetails')"
+    >
+      <svg class="w-4 h-4 text-purple-600 dark:text-purple-400" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="1.5">
+        <path stroke-linecap="round" stroke-linejoin="round" d="M2.25 8.25h19.5M2.25 9h19.5m-16.5 5.25h6m-6 2.25h3m-3.75 3h15a2.25 2.25 0 002.25-2.25V6.75A2.25 2.25 0 0019.5 4.5h-15a2.25 2.25 0 00-2.25 2.25v10.5A2.25 2.25 0 004.5 19.5z" />
+      </svg>
+      <div class="flex items-center gap-1.5">
+        <!-- Combined progress indicator -->
+        <div class="flex items-center gap-0.5">
+          <div
+            v-for="(sub, index) in displaySubscriptions.slice(0, 3)"
+            :key="index"
+            class="w-2 h-2 rounded-full"
+            :class="getProgressDotClass(sub)"
+          ></div>
+        </div>
+        <span class="text-xs font-medium text-purple-700 dark:text-purple-300">
+          {{ activeSubscriptions.length }}
+        </span>
+      </div>
+    </button>
+
+    <!-- Hover/Click Tooltip -->
+    <transition name="dropdown">
+      <div
+        v-if="tooltipOpen"
+        class="absolute right-0 mt-2 w-80 bg-white dark:bg-dark-800 rounded-xl shadow-xl border border-gray-200 dark:border-dark-700 z-50"
+      >
+        <div class="p-3 border-b border-gray-100 dark:border-dark-700">
+          <h3 class="text-sm font-semibold text-gray-900 dark:text-white">
+            {{ t('subscriptionProgress.title') }}
+          </h3>
+          <p class="text-xs text-gray-500 dark:text-dark-400 mt-0.5">
+            {{ t('subscriptionProgress.activeCount', { count: activeSubscriptions.length }) }}
+          </p>
+        </div>
+
+        <div class="max-h-64 overflow-y-auto">
+          <div
+            v-for="subscription in displaySubscriptions"
+            :key="subscription.id"
+            class="p-3 border-b border-gray-50 dark:border-dark-700/50 last:border-b-0"
+          >
+            <div class="flex items-center justify-between mb-2">
+              <span class="text-sm font-medium text-gray-900 dark:text-white">
+                {{ subscription.group?.name || `Group #${subscription.group_id}` }}
+              </span>
+              <span
+                v-if="subscription.expires_at"
+                class="text-xs"
+                :class="getDaysRemainingClass(subscription.expires_at)"
+              >
+                {{ formatDaysRemaining(subscription.expires_at) }}
+              </span>
+            </div>
+
+            <!-- Progress bars -->
+            <div class="space-y-1.5">
+              <div v-if="subscription.group?.daily_limit_usd" class="flex items-center gap-2">
+                <span class="text-[10px] text-gray-500 w-8">{{ t('subscriptionProgress.daily') }}</span>
+                <div class="flex-1 bg-gray-200 dark:bg-dark-600 rounded-full h-1.5">
+                  <div
+                    class="h-1.5 rounded-full transition-all"
+                    :class="getProgressBarClass(subscription.daily_usage_usd, subscription.group?.daily_limit_usd)"
+                    :style="{ width: getProgressWidth(subscription.daily_usage_usd, subscription.group?.daily_limit_usd) }"
+                  ></div>
+                </div>
+                <span class="text-[10px] text-gray-500 w-16 text-right">
+                  {{ formatUsage(subscription.daily_usage_usd, subscription.group?.daily_limit_usd) }}
+                </span>
+              </div>
+
+              <div v-if="subscription.group?.weekly_limit_usd" class="flex items-center gap-2">
+                <span class="text-[10px] text-gray-500 w-8">{{ t('subscriptionProgress.weekly') }}</span>
+                <div class="flex-1 bg-gray-200 dark:bg-dark-600 rounded-full h-1.5">
+                  <div
+                    class="h-1.5 rounded-full transition-all"
+                    :class="getProgressBarClass(subscription.weekly_usage_usd, subscription.group?.weekly_limit_usd)"
+                    :style="{ width: getProgressWidth(subscription.weekly_usage_usd, subscription.group?.weekly_limit_usd) }"
+                  ></div>
+                </div>
+                <span class="text-[10px] text-gray-500 w-16 text-right">
+                  {{ formatUsage(subscription.weekly_usage_usd, subscription.group?.weekly_limit_usd) }}
+                </span>
+              </div>
+
+              <div v-if="subscription.group?.monthly_limit_usd" class="flex items-center gap-2">
+                <span class="text-[10px] text-gray-500 w-8">{{ t('subscriptionProgress.monthly') }}</span>
+                <div class="flex-1 bg-gray-200 dark:bg-dark-600 rounded-full h-1.5">
+                  <div
+                    class="h-1.5 rounded-full transition-all"
+                    :class="getProgressBarClass(subscription.monthly_usage_usd, subscription.group?.monthly_limit_usd)"
+                    :style="{ width: getProgressWidth(subscription.monthly_usage_usd, subscription.group?.monthly_limit_usd) }"
+                  ></div>
+                </div>
+                <span class="text-[10px] text-gray-500 w-16 text-right">
+                  {{ formatUsage(subscription.monthly_usage_usd, subscription.group?.monthly_limit_usd) }}
+                </span>
+              </div>
+            </div>
+          </div>
+        </div>
+
+        <div class="p-2 border-t border-gray-100 dark:border-dark-700">
+          <router-link
+            to="/subscriptions"
+            @click="closeTooltip"
+            class="block w-full text-center text-xs text-primary-600 dark:text-primary-400 hover:underline py-1"
+          >
+            {{ t('subscriptionProgress.viewAll') }}
+          </router-link>
+        </div>
+      </div>
+    </transition>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, onMounted, onBeforeUnmount, watch } from 'vue';
+import { useI18n } from 'vue-i18n';
+import subscriptionsAPI from '@/api/subscriptions';
+import type { UserSubscription } from '@/types';
+
+const { t } = useI18n();
+
+const containerRef = ref<HTMLElement | null>(null);
+const tooltipOpen = ref(false);
+const activeSubscriptions = ref<UserSubscription[]>([]);
+const loading = ref(false);
+
+const hasActiveSubscriptions = computed(() => activeSubscriptions.value.length > 0);
+
+const displaySubscriptions = computed(() => {
+  // Sort by most usage (highest percentage first)
+  return [...activeSubscriptions.value].sort((a, b) => {
+    const aMax = getMaxUsagePercentage(a);
+    const bMax = getMaxUsagePercentage(b);
+    return bMax - aMax;
+  });
+});
+
+function getMaxUsagePercentage(sub: UserSubscription): number {
+  const percentages: number[] = [];
+  if (sub.group?.daily_limit_usd) {
+    percentages.push((sub.daily_usage_usd || 0) / sub.group.daily_limit_usd * 100);
+  }
+  if (sub.group?.weekly_limit_usd) {
+    percentages.push((sub.weekly_usage_usd || 0) / sub.group.weekly_limit_usd * 100);
+  }
+  if (sub.group?.monthly_limit_usd) {
+    percentages.push((sub.monthly_usage_usd || 0) / sub.group.monthly_limit_usd * 100);
+  }
+  return percentages.length > 0 ? Math.max(...percentages) : 0;
+}
+
+function getProgressDotClass(sub: UserSubscription): string {
+  const maxPercentage = getMaxUsagePercentage(sub);
+  if (maxPercentage >= 90) return 'bg-red-500';
+  if (maxPercentage >= 70) return 'bg-orange-500';
+  return 'bg-green-500';
+}
+
+function getProgressBarClass(used: number | undefined, limit: number | null | undefined): string {
+  if (!limit || limit === 0) return 'bg-gray-400';
+  const percentage = ((used || 0) / limit) * 100;
+  if (percentage >= 90) return 'bg-red-500';
+  if (percentage >= 70) return 'bg-orange-500';
+  return 'bg-green-500';
+}
+
+function getProgressWidth(used: number | undefined, limit: number | null | undefined): string {
+  if (!limit || limit === 0) return '0%';
+  const percentage = Math.min(((used || 0) / limit) * 100, 100);
+  return `${percentage}%`;
+}
+
+function formatUsage(used: number | undefined, limit: number | null | undefined): string {
+  const usedValue = (used || 0).toFixed(2);
+  const limitValue = limit?.toFixed(2) || '∞';
+  return `$${usedValue}/$${limitValue}`;
+}
+
+function formatDaysRemaining(expiresAt: string): string {
+  const now = new Date();
+  const expires = new Date(expiresAt);
+  const diff = expires.getTime() - now.getTime();
+  if (diff < 0) return t('subscriptionProgress.expired');
+  const days = Math.ceil(diff / (1000 * 60 * 60 * 24));
+  if (days === 0) return t('subscriptionProgress.expirestoday');
+  if (days === 1) return t('subscriptionProgress.expiresTomorrow');
+  return t('subscriptionProgress.daysRemaining', { days });
+}
+
+function getDaysRemainingClass(expiresAt: string): string {
+  const now = new Date();
+  const expires = new Date(expiresAt);
+  const diff = expires.getTime() - now.getTime();
+  const days = Math.ceil(diff / (1000 * 60 * 60 * 24));
+  if (days <= 3) return 'text-red-600 dark:text-red-400';
+  if (days <= 7) return 'text-orange-600 dark:text-orange-400';
+  return 'text-gray-500 dark:text-dark-400';
+}
+
+function toggleTooltip() {
+  tooltipOpen.value = !tooltipOpen.value;
+}
+
+function closeTooltip() {
+  tooltipOpen.value = false;
+}
+
+function handleClickOutside(event: MouseEvent) {
+  if (containerRef.value && !containerRef.value.contains(event.target as Node)) {
+    closeTooltip();
+  }
+}
+
+async function loadSubscriptions() {
+  try {
+    loading.value = true;
+    activeSubscriptions.value = await subscriptionsAPI.getActiveSubscriptions();
+  } catch (error) {
+    console.error('Failed to load subscriptions:', error);
+    activeSubscriptions.value = [];
+  } finally {
+    loading.value = false;
+  }
+}
+
+onMounted(() => {
+  document.addEventListener('click', handleClickOutside);
+  loadSubscriptions();
+});
+
+onBeforeUnmount(() => {
+  document.removeEventListener('click', handleClickOutside);
+});
+
+// Refresh subscriptions periodically (every 5 minutes)
+let refreshInterval: ReturnType<typeof setInterval> | null = null;
+onMounted(() => {
+  refreshInterval = setInterval(loadSubscriptions, 5 * 60 * 1000);
+});
+onBeforeUnmount(() => {
+  if (refreshInterval) {
+    clearInterval(refreshInterval);
+  }
+});
+</script>
+
+<style scoped>
+.dropdown-enter-active,
+.dropdown-leave-active {
+  transition: all 0.2s ease;
+}
+
+.dropdown-enter-from,
+.dropdown-leave-to {
+  opacity: 0;
+  transform: scale(0.95) translateY(-4px);
+}
+</style>

frontend/src/components/common/Toast.vue

@@ -0,0 +1,224 @@
+<template>
+  <Teleport to="body">
+    <div
+      class="fixed top-4 right-4 z-[9999] space-y-3 pointer-events-none"
+      aria-live="polite"
+      aria-atomic="true"
+    >
+      <TransitionGroup
+        enter-active-class="transition ease-out duration-300"
+        enter-from-class="opacity-0 translate-x-full"
+        enter-to-class="opacity-100 translate-x-0"
+        leave-active-class="transition ease-in duration-200"
+        leave-from-class="opacity-100 translate-x-0"
+        leave-to-class="opacity-0 translate-x-full"
+      >
+        <div
+          v-for="toast in toasts"
+          :key="toast.id"
+          :class="[
+            'pointer-events-auto min-w-[320px] max-w-md overflow-hidden rounded-lg shadow-lg',
+            'bg-white dark:bg-dark-800',
+            'border-l-4',
+            getBorderColor(toast.type)
+          ]"
+        >
+          <div class="p-4">
+            <div class="flex items-start gap-3">
+              <!-- Icon -->
+              <div class="flex-shrink-0 mt-0.5">
+                <component
+                  :is="getIcon(toast.type)"
+                  :class="['w-5 h-5', getIconColor(toast.type)]"
+                  aria-hidden="true"
+                />
+              </div>
+
+              <!-- Content -->
+              <div class="flex-1 min-w-0">
+                <p
+                  v-if="toast.title"
+                  class="text-sm font-semibold text-gray-900 dark:text-white"
+                >
+                  {{ toast.title }}
+                </p>
+                <p
+                  :class="[
+                    'text-sm leading-relaxed',
+                    toast.title ? 'mt-1 text-gray-600 dark:text-gray-300' : 'text-gray-900 dark:text-white'
+                  ]"
+                >
+                  {{ toast.message }}
+                </p>
+              </div>
+
+              <!-- Close button -->
+              <button
+                @click="removeToast(toast.id)"
+                class="flex-shrink-0 p-1 -m-1 text-gray-400 dark:text-gray-500 transition-colors rounded hover:text-gray-600 dark:hover:text-gray-300 hover:bg-gray-100 dark:hover:bg-dark-700"
+                aria-label="Close notification"
+              >
+                <svg class="w-4 h-4" fill="currentColor" viewBox="0 0 20 20">
+                  <path
+                    fill-rule="evenodd"
+                    d="M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z"
+                    clip-rule="evenodd"
+                  />
+                </svg>
+              </button>
+            </div>
+          </div>
+
+          <!-- Progress bar -->
+          <div
+            v-if="toast.duration"
+            class="h-1 bg-gray-100 dark:bg-dark-700"
+          >
+            <div
+              :class="['h-full transition-all', getProgressBarColor(toast.type)]"
+              :style="{ width: `${getProgress(toast)}%` }"
+            ></div>
+          </div>
+        </div>
+      </TransitionGroup>
+    </div>
+  </Teleport>
+</template>
+
+<script setup lang="ts">
+import { computed, onMounted, onUnmounted, h } from 'vue'
+import { useAppStore } from '@/stores/app'
+
+const appStore = useAppStore()
+
+const toasts = computed(() => appStore.toasts)
+
+const getIcon = (type: string) => {
+  const icons = {
+    success: () =>
+      h(
+        'svg',
+        {
+          fill: 'currentColor',
+          viewBox: '0 0 20 20'
+        },
+        [
+          h('path', {
+            'fill-rule': 'evenodd',
+            d: 'M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-9.293a1 1 0 00-1.414-1.414L9 10.586 7.707 9.293a1 1 0 00-1.414 1.414l2 2a1 1 0 001.414 0l4-4z',
+            'clip-rule': 'evenodd'
+          })
+        ]
+      ),
+    error: () =>
+      h(
+        'svg',
+        {
+          fill: 'currentColor',
+          viewBox: '0 0 20 20'
+        },
+        [
+          h('path', {
+            'fill-rule': 'evenodd',
+            d: 'M10 18a8 8 0 100-16 8 8 0 000 16zM8.707 7.293a1 1 0 00-1.414 1.414L8.586 10l-1.293 1.293a1 1 0 101.414 1.414L10 11.414l1.293 1.293a1 1 0 001.414-1.414L11.414 10l1.293-1.293a1 1 0 00-1.414-1.414L10 8.586 8.707 7.293z',
+            'clip-rule': 'evenodd'
+          })
+        ]
+      ),
+    warning: () =>
+      h(
+        'svg',
+        {
+          fill: 'currentColor',
+          viewBox: '0 0 20 20'
+        },
+        [
+          h('path', {
+            'fill-rule': 'evenodd',
+            d: 'M8.257 3.099c.765-1.36 2.722-1.36 3.486 0l5.58 9.92c.75 1.334-.213 2.98-1.742 2.98H4.42c-1.53 0-2.493-1.646-1.743-2.98l5.58-9.92zM11 13a1 1 0 11-2 0 1 1 0 012 0zm-1-8a1 1 0 00-1 1v3a1 1 0 002 0V6a1 1 0 00-1-1z',
+            'clip-rule': 'evenodd'
+          })
+        ]
+      ),
+    info: () =>
+      h(
+        'svg',
+        {
+          fill: 'currentColor',
+          viewBox: '0 0 20 20'
+        },
+        [
+          h('path', {
+            'fill-rule': 'evenodd',
+            d: 'M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z',
+            'clip-rule': 'evenodd'
+          })
+        ]
+      )
+  }
+  return icons[type as keyof typeof icons] || icons.info
+}
+
+const getIconColor = (type: string): string => {
+  const colors: Record<string, string> = {
+    success: 'text-green-500',
+    error: 'text-red-500',
+    warning: 'text-yellow-500',
+    info: 'text-blue-500'
+  }
+  return colors[type] || colors.info
+}
+
+const getBorderColor = (type: string): string => {
+  const colors: Record<string, string> = {
+    success: 'border-green-500',
+    error: 'border-red-500',
+    warning: 'border-yellow-500',
+    info: 'border-blue-500'
+  }
+  return colors[type] || colors.info
+}
+
+const getProgressBarColor = (type: string): string => {
+  const colors: Record<string, string> = {
+    success: 'bg-green-500',
+    error: 'bg-red-500',
+    warning: 'bg-yellow-500',
+    info: 'bg-blue-500'
+  }
+  return colors[type] || colors.info
+}
+
+const getProgress = (toast: any): number => {
+  if (!toast.duration || !toast.startTime) return 100
+  const elapsed = Date.now() - toast.startTime
+  const progress = Math.max(0, 100 - (elapsed / toast.duration) * 100)
+  return progress
+}
+
+const removeToast = (id: string) => {
+  appStore.hideToast(id)
+}
+
+let intervalId: number | undefined
+
+onMounted(() => {
+  // Check for expired toasts every 100ms
+  intervalId = window.setInterval(() => {
+    const now = Date.now()
+    toasts.value.forEach((toast) => {
+      if (toast.duration && toast.startTime) {
+        if (now - toast.startTime >= toast.duration) {
+          removeToast(toast.id)
+        }
+      }
+    })
+  }, 100)
+})
+
+onUnmounted(() => {
+  if (intervalId !== undefined) {
+    clearInterval(intervalId)
+  }
+})
+</script>

frontend/src/components/common/Toggle.vue

@@ -0,0 +1,35 @@
+<template>
+  <button
+    type="button"
+    @click="toggle"
+    class="relative inline-flex h-6 w-11 flex-shrink-0 cursor-pointer rounded-full border-2 border-transparent transition-colors duration-200 ease-in-out focus:outline-none focus:ring-2 focus:ring-primary-500 focus:ring-offset-2 dark:focus:ring-offset-dark-800"
+    :class="[
+      modelValue
+        ? 'bg-primary-600'
+        : 'bg-gray-200 dark:bg-dark-600'
+    ]"
+    role="switch"
+    :aria-checked="modelValue"
+  >
+    <span
+      class="pointer-events-none inline-block h-5 w-5 transform rounded-full bg-white shadow ring-0 transition duration-200 ease-in-out"
+      :class="[
+        modelValue ? 'translate-x-5' : 'translate-x-0'
+      ]"
+    />
+  </button>
+</template>
+
+<script setup lang="ts">
+const props = defineProps<{
+  modelValue: boolean;
+}>();
+
+const emit = defineEmits<{
+  (e: 'update:modelValue', value: boolean): void;
+}>();
+
+function toggle() {
+  emit('update:modelValue', !props.modelValue);
+}
+</script>

frontend/src/components/common/VersionBadge.vue

@@ -0,0 +1,250 @@
+<template>
+  <div class="relative">
+    <!-- Admin: Full version badge with dropdown -->
+    <template v-if="isAdmin">
+      <button
+        @click="toggleDropdown"
+        class="flex items-center gap-1.5 px-2 py-1 text-xs rounded-lg transition-colors"
+        :class="[
+          hasUpdate
+            ? 'bg-amber-100 dark:bg-amber-900/30 text-amber-700 dark:text-amber-400 hover:bg-amber-200 dark:hover:bg-amber-900/50'
+            : 'bg-gray-100 dark:bg-dark-800 text-gray-600 dark:text-dark-400 hover:bg-gray-200 dark:hover:bg-dark-700'
+        ]"
+        :title="hasUpdate ? 'New version available' : 'Up to date'"
+      >
+        <span class="font-medium">v{{ currentVersion }}</span>
+        <!-- Update indicator -->
+        <span v-if="hasUpdate" class="relative flex h-2 w-2">
+          <span class="animate-ping absolute inline-flex h-full w-full rounded-full bg-amber-400 opacity-75"></span>
+          <span class="relative inline-flex rounded-full h-2 w-2 bg-amber-500"></span>
+        </span>
+      </button>
+
+      <!-- Dropdown -->
+      <transition name="dropdown">
+        <div
+          v-if="dropdownOpen"
+          ref="dropdownRef"
+          class="absolute left-0 mt-2 w-64 bg-white dark:bg-dark-800 rounded-xl shadow-lg border border-gray-200 dark:border-dark-700 z-50 overflow-hidden"
+        >
+          <!-- Header with refresh button -->
+          <div class="flex items-center justify-between px-4 py-3 border-b border-gray-100 dark:border-dark-700">
+            <span class="text-sm font-medium text-gray-700 dark:text-dark-300">{{ t('version.currentVersion') }}</span>
+            <button
+              @click="refreshVersion(true)"
+              class="p-1.5 rounded-lg text-gray-400 hover:text-gray-600 dark:hover:text-dark-200 hover:bg-gray-100 dark:hover:bg-dark-700 transition-colors"
+              :disabled="loading"
+              :title="t('version.refresh')"
+            >
+              <svg class="w-4 h-4" :class="{ 'animate-spin': loading }" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
+                <path stroke-linecap="round" stroke-linejoin="round" d="M16.023 9.348h4.992v-.001M2.985 19.644v-4.992m0 0h4.992m-4.993 0l3.181 3.183a8.25 8.25 0 0013.803-3.7M4.031 9.865a8.25 8.25 0 0113.803-3.7l3.181 3.182m0-4.991v4.99" />
+              </svg>
+            </button>
+          </div>
+
+          <div class="p-4">
+            <!-- Loading state -->
+            <div v-if="loading" class="flex items-center justify-center py-6">
+              <svg class="animate-spin h-6 w-6 text-primary-500" 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>
+            </div>
+
+            <!-- Content -->
+            <template v-else>
+              <!-- Version display - centered and prominent -->
+              <div class="text-center mb-4">
+                <div class="inline-flex items-center gap-2">
+                  <span class="text-2xl font-bold text-gray-900 dark:text-white">v{{ currentVersion }}</span>
+                  <!-- Show check mark when up to date -->
+                  <span v-if="!hasUpdate" class="flex items-center justify-center w-5 h-5 rounded-full bg-green-100 dark:bg-green-900/30">
+                    <svg class="w-3 h-3 text-green-600 dark:text-green-400" fill="currentColor" viewBox="0 0 20 20">
+                      <path fill-rule="evenodd" d="M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z" clip-rule="evenodd" />
+                    </svg>
+                  </span>
+                </div>
+                <p class="text-xs text-gray-500 dark:text-dark-400 mt-1">
+                  {{ hasUpdate ? t('version.latestVersion') + ': v' + latestVersion : t('version.upToDate') }}
+                </p>
+              </div>
+
+              <!-- Update available for source build - show git pull hint -->
+              <div v-if="hasUpdate && !isReleaseBuild" class="space-y-2">
+                <a
+                  v-if="releaseInfo?.html_url && releaseInfo.html_url !== '#'"
+                  :href="releaseInfo.html_url"
+                  target="_blank"
+                  rel="noopener noreferrer"
+                  class="flex items-center gap-3 p-3 rounded-lg bg-amber-50 dark:bg-amber-900/20 border border-amber-200 dark:border-amber-800/50 hover:bg-amber-100 dark:hover:bg-amber-900/30 transition-colors group"
+                >
+                  <div class="flex-shrink-0 w-8 h-8 rounded-full bg-amber-100 dark:bg-amber-900/50 flex items-center justify-center">
+                    <svg class="w-4 h-4 text-amber-600 dark:text-amber-400" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
+                      <path stroke-linecap="round" stroke-linejoin="round" d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-4l-4 4m0 0l-4-4m4 4V4" />
+                    </svg>
+                  </div>
+                  <div class="flex-1 min-w-0">
+                    <p class="text-sm font-medium text-amber-700 dark:text-amber-300">{{ t('version.updateAvailable') }}</p>
+                    <p class="text-xs text-amber-600/70 dark:text-amber-400/70">v{{ latestVersion }}</p>
+                  </div>
+                  <svg class="w-4 h-4 text-amber-500 dark:text-amber-400 group-hover:translate-x-0.5 transition-transform" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
+                    <path stroke-linecap="round" stroke-linejoin="round" d="M9 5l7 7-7 7" />
+                  </svg>
+                </a>
+                <!-- Source build hint -->
+                <div class="flex items-center gap-2 p-2 rounded-lg bg-blue-50 dark:bg-blue-900/20 border border-blue-200 dark:border-blue-800/50">
+                  <svg class="w-3.5 h-3.5 text-blue-500 dark:text-blue-400 flex-shrink-0" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
+                    <path stroke-linecap="round" stroke-linejoin="round" d="M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
+                  </svg>
+                  <p class="text-xs text-blue-600 dark:text-blue-400">{{ t('version.sourceModeHint') }}</p>
+                </div>
+              </div>
+
+              <!-- Update available for release build - show download link -->
+              <a
+                v-else-if="hasUpdate && isReleaseBuild && releaseInfo?.html_url && releaseInfo.html_url !== '#'"
+                :href="releaseInfo.html_url"
+                target="_blank"
+                rel="noopener noreferrer"
+                class="flex items-center gap-3 p-3 rounded-lg bg-amber-50 dark:bg-amber-900/20 border border-amber-200 dark:border-amber-800/50 hover:bg-amber-100 dark:hover:bg-amber-900/30 transition-colors group"
+              >
+                <div class="flex-shrink-0 w-8 h-8 rounded-full bg-amber-100 dark:bg-amber-900/50 flex items-center justify-center">
+                  <svg class="w-4 h-4 text-amber-600 dark:text-amber-400" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
+                    <path stroke-linecap="round" stroke-linejoin="round" d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-4l-4 4m0 0l-4-4m4 4V4" />
+                  </svg>
+                </div>
+                <div class="flex-1 min-w-0">
+                  <p class="text-sm font-medium text-amber-700 dark:text-amber-300">{{ t('version.updateAvailable') }}</p>
+                  <p class="text-xs text-amber-600/70 dark:text-amber-400/70">v{{ latestVersion }}</p>
+                </div>
+                <svg class="w-4 h-4 text-amber-500 dark:text-amber-400 group-hover:translate-x-0.5 transition-transform" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
+                  <path stroke-linecap="round" stroke-linejoin="round" d="M9 5l7 7-7 7" />
+                </svg>
+              </a>
+
+              <!-- GitHub link when up to date -->
+              <a
+                v-else-if="releaseInfo?.html_url && releaseInfo.html_url !== '#'"
+                :href="releaseInfo.html_url"
+                target="_blank"
+                rel="noopener noreferrer"
+                class="flex items-center justify-center gap-2 py-2 text-sm text-gray-500 dark:text-dark-400 hover:text-gray-700 dark:hover:text-dark-200 transition-colors"
+              >
+                <svg class="w-4 h-4" fill="currentColor" viewBox="0 0 24 24">
+                  <path fill-rule="evenodd" clip-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.42 2.865 8.17 6.839 9.49.5.092.682-.217.682-.482 0-.237-.008-.866-.013-1.7-2.782.604-3.369-1.34-3.369-1.34-.454-1.156-1.11-1.464-1.11-1.464-.908-.62.069-.608.069-.608 1.003.07 1.531 1.03 1.531 1.03.892 1.529 2.341 1.087 2.91.831.092-.646.35-1.086.636-1.336-2.22-.253-4.555-1.11-4.555-4.943 0-1.091.39-1.984 1.029-2.683-.103-.253-.446-1.27.098-2.647 0 0 .84-.269 2.75 1.025A9.578 9.578 0 0112 6.836c.85.004 1.705.114 2.504.336 1.909-1.294 2.747-1.025 2.747-1.025.546 1.377.203 2.394.1 2.647.64.699 1.028 1.592 1.028 2.683 0 3.842-2.339 4.687-4.566 4.935.359.309.678.919.678 1.852 0 1.336-.012 2.415-.012 2.743 0 .267.18.578.688.48C19.138 20.167 22 16.418 22 12c0-5.523-4.477-10-10-10z" />
+                </svg>
+                {{ t('version.viewRelease') }}
+              </a>
+            </template>
+          </div>
+        </div>
+      </transition>
+    </template>
+
+    <!-- Non-admin: Simple static version text -->
+    <span
+      v-else-if="version"
+      class="text-xs text-gray-500 dark:text-dark-400"
+    >
+      v{{ version }}
+    </span>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, onMounted, onBeforeUnmount } from 'vue';
+import { useI18n } from 'vue-i18n';
+import { useAuthStore } from '@/stores';
+import { checkUpdates, type VersionInfo, type ReleaseInfo } from '@/api/admin/system';
+
+const { t } = useI18n();
+
+const props = defineProps<{
+  version?: string;
+}>();
+
+const authStore = useAuthStore();
+
+const isAdmin = computed(() => authStore.isAdmin);
+
+const loading = ref(false);
+const dropdownOpen = ref(false);
+const dropdownRef = ref<HTMLElement | null>(null);
+
+const currentVersion = ref('0.1.0');
+const latestVersion = ref('0.1.0');
+const hasUpdate = ref(false);
+const releaseInfo = ref<ReleaseInfo | null>(null);
+const buildType = ref('source'); // "source" or "release"
+
+// Only show update check for release builds (binary/docker deployment)
+const isReleaseBuild = computed(() => buildType.value === 'release');
+
+function toggleDropdown() {
+  dropdownOpen.value = !dropdownOpen.value;
+}
+
+function closeDropdown() {
+  dropdownOpen.value = false;
+}
+
+async function refreshVersion(force = true) {
+  if (!isAdmin.value) return;
+
+  loading.value = true;
+  try {
+    const data: VersionInfo = await checkUpdates(force);
+    currentVersion.value = data.current_version;
+    latestVersion.value = data.latest_version;
+    buildType.value = data.build_type || 'source';
+    // Show update indicator for all build types
+    hasUpdate.value = data.has_update;
+    releaseInfo.value = data.release_info || null;
+  } catch (error) {
+    console.error('Failed to check updates:', error);
+  } finally {
+    loading.value = false;
+  }
+}
+
+function handleClickOutside(event: MouseEvent) {
+  const target = event.target as Node;
+  const button = (event.target as Element).closest('button');
+  if (dropdownRef.value && !dropdownRef.value.contains(target) && !button?.contains(target)) {
+    closeDropdown();
+  }
+}
+
+onMounted(() => {
+  if (isAdmin.value) {
+    refreshVersion(false);
+  } else if (props.version) {
+    currentVersion.value = props.version;
+  }
+  document.addEventListener('click', handleClickOutside);
+});
+
+onBeforeUnmount(() => {
+  document.removeEventListener('click', handleClickOutside);
+});
+</script>
+
+<style scoped>
+.dropdown-enter-active,
+.dropdown-leave-active {
+  transition: all 0.2s ease;
+}
+
+.dropdown-enter-from,
+.dropdown-leave-to {
+  opacity: 0;
+  transform: scale(0.95) translateY(-4px);
+}
+
+.line-clamp-3 {
+  display: -webkit-box;
+  -webkit-line-clamp: 3;
+  -webkit-box-orient: vertical;
+  overflow: hidden;
+}
+</style>

frontend/src/components/common/index.ts

@@ -0,0 +1,13 @@
+// Export all common components
+export { default as DataTable } from './DataTable.vue'
+export { default as Pagination } from './Pagination.vue'
+export { default as Modal } from './Modal.vue'
+export { default as ConfirmDialog } from './ConfirmDialog.vue'
+export { default as StatCard } from './StatCard.vue'
+export { default as Toast } from './Toast.vue'
+export { default as LoadingSpinner } from './LoadingSpinner.vue'
+export { default as EmptyState } from './EmptyState.vue'
+export { default as LocaleSwitcher } from './LocaleSwitcher.vue'
+
+// Export types
+export type { Column } from './DataTable.vue'