Fix UserMenu: add notifications panel + bug report form

- Notifications show inline in dropdown (not a separate route)
- Load from /api/notifications, show unread count badge
- Mark all read button
- Bug report form with /api/bug-report POST
- Both panels toggle in the dropdown

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/components/UserMenu.vue

@@ -10,23 +10,53 @@
         <button class="usermenu-btn" @click="goMyDiary">
           📖 我的
         </button>
-        <button class="usermenu-btn" @click="goNotifications">
+        <button class="usermenu-btn" @click="toggleNotifications">
           🔔 通知
           <span v-if="unreadCount > 0" class="unread-badge">{{ unreadCount }}</span>
         </button>
+        <button class="usermenu-btn" @click="showBugReport">
+          🐛 反馈问题
+        </button>
         <button class="usermenu-btn usermenu-btn-logout" @click="handleLogout">
           🚪 退出登录
         </button>
       </div>
+
+      <!-- Inline Notification Panel -->
+      <div v-if="showNotifPanel" class="notif-panel">
+        <div class="notif-header">
+          <span>通知 ({{ notifications.length }})</span>
+          <button v-if="unreadCount > 0" class="notif-mark-all" @click="markAllRead">全部已读</button>
+        </div>
+        <div class="notif-list">
+          <div v-for="n in notifications.slice(0, 20)" :key="n.id"
+               class="notif-item" :class="{ unread: !n.is_read }">
+            <div class="notif-title">{{ n.title }}</div>
+            <div v-if="n.body" class="notif-body">{{ n.body }}</div>
+            <div class="notif-time">{{ formatTime(n.created_at) }}</div>
+          </div>
+          <div v-if="notifications.length === 0" class="notif-empty">暂无通知</div>
+        </div>
+      </div>
+
+      <!-- Bug Report Modal -->
+      <div v-if="showBugForm" class="bug-form">
+        <textarea v-model="bugContent" class="bug-textarea" rows="3" placeholder="描述你遇到的问题..."></textarea>
+        <div class="bug-form-actions">
+          <button class="btn-sm btn-outline" @click="showBugForm = false">取消</button>
+          <button class="btn-sm btn-primary" @click="submitBug" :disabled="!bugContent.trim()">提交</button>
+        </div>
+      </div>
     </div>
   </div>
 </template>
 
 <script setup>
-import { ref, computed } from 'vue'
+import { ref, computed, onMounted } from 'vue'
 import { useRouter } from 'vue-router'
 import { useAuthStore } from '../stores/auth'
 import { useUiStore } from '../stores/ui'
+import { api } from '../composables/useApi'
 
 const emit = defineEmits(['close'])
 
@@ -34,7 +64,12 @@ const auth = useAuthStore()
 const ui = useUiStore()
 const router = useRouter()
 
-const unreadCount = ref(0)
+const notifications = ref([])
+const showNotifPanel = ref(false)
+const showBugForm = ref(false)
+const bugContent = ref('')
+
+const unreadCount = computed(() => notifications.value.filter(n => !n.is_read).length)
 
 const roleLabel = computed(() => {
   const map = {
@@ -46,14 +81,55 @@ const roleLabel = computed(() => {
   return map[auth.user.role] || auth.user.role
 })
 
+function formatTime(d) {
+  if (!d) return ''
+  return new Date(d + 'Z').toLocaleString('zh-CN', { month: 'short', day: 'numeric', hour: '2-digit', minute: '2-digit' })
+}
+
 function goMyDiary() {
   emit('close')
   router.push('/mydiary')
 }
 
-function goNotifications() {
-  emit('close')
-  router.push('/notifications')
+function toggleNotifications() {
+  showNotifPanel.value = !showNotifPanel.value
+  showBugForm.value = false
+}
+
+function showBugReport() {
+  showBugForm.value = !showBugForm.value
+  showNotifPanel.value = false
+}
+
+async function submitBug() {
+  if (!bugContent.value.trim()) return
+  try {
+    const res = await api('/api/bug-report', {
+      method: 'POST',
+      body: JSON.stringify({ content: bugContent.value.trim(), priority: 0 }),
+    })
+    if (res.ok) {
+      bugContent.value = ''
+      showBugForm.value = false
+      ui.showToast('反馈已提交')
+    }
+  } catch {
+    ui.showToast('提交失败')
+  }
+}
+
+async function markAllRead() {
+  try {
+    await api('/api/notifications/read-all', { method: 'POST', body: '{}' })
+    notifications.value.forEach(n => n.is_read = 1)
+  } catch {}
+}
+
+async function loadNotifications() {
+  try {
+    const res = await api('/api/notifications')
+    if (res.ok) notifications.value = await res.json()
+  } catch {}
 }
 
 function handleLogout() {
@@ -62,6 +138,8 @@ function handleLogout() {
   emit('close')
   window.location.reload()
 }
+
+onMounted(loadNotifications)
 </script>
 
 <style scoped>
@@ -79,78 +157,71 @@ function handleLogout() {
   border-radius: 14px;
   box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
   padding: 18px 20px 14px;
-  min-width: 180px;
+  min-width: 200px;
+  max-width: 340px;
   z-index: 4001;
 }
 
-.usermenu-name {
-  font-size: 16px;
-  font-weight: 600;
-  color: #3e3a44;
-  margin-bottom: 4px;
-}
-
-.usermenu-role {
-  margin-bottom: 14px;
-}
-
+.usermenu-name { font-size: 16px; font-weight: 600; color: #3e3a44; margin-bottom: 4px; }
+.usermenu-role { margin-bottom: 14px; }
 .role-badge {
-  display: inline-block;
-  font-size: 11px;
-  padding: 2px 10px;
-  border-radius: 8px;
-  background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
-  color: #4a9d7e;
-  font-weight: 500;
-}
-
-.usermenu-actions {
-  display: flex;
-  flex-direction: column;
-  gap: 4px;
+  display: inline-block; font-size: 11px; padding: 2px 10px;
+  border-radius: 8px; background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
+  color: #4a9d7e; font-weight: 500;
 }
 
+.usermenu-actions { display: flex; flex-direction: column; gap: 4px; }
 .usermenu-btn {
-  display: flex;
-  align-items: center;
-  gap: 6px;
-  width: 100%;
-  padding: 9px 10px;
-  border: none;
-  background: none;
-  border-radius: 8px;
-  font-size: 14px;
-  color: #3e3a44;
-  cursor: pointer;
-  font-family: inherit;
-  text-align: left;
-  transition: background 0.15s;
-  position: relative;
+  display: flex; align-items: center; gap: 6px; width: 100%;
+  padding: 9px 10px; border: none; background: none; border-radius: 8px;
+  font-size: 14px; color: #3e3a44; cursor: pointer; font-family: inherit;
+  text-align: left; transition: background 0.15s; position: relative;
 }
-
-.usermenu-btn:hover {
-  background: #f5f3f0;
-}
-
+.usermenu-btn:hover { background: #f5f3f0; }
 .usermenu-btn-logout {
-  color: #d9534f;
-  margin-top: 6px;
-  border-top: 1px solid #eee;
-  padding-top: 12px;
-  border-radius: 0 0 8px 8px;
+  color: #d9534f; margin-top: 6px; border-top: 1px solid #eee;
+  padding-top: 12px; border-radius: 0 0 8px 8px;
 }
 
 .unread-badge {
-  background: #d9534f;
-  color: #fff;
-  font-size: 11px;
-  font-weight: 600;
-  min-width: 18px;
-  height: 18px;
-  line-height: 18px;
-  text-align: center;
-  border-radius: 9px;
-  padding: 0 5px;
-  margin-left: auto;
+  background: #d9534f; color: #fff; font-size: 11px; font-weight: 600;
+  min-width: 18px; height: 18px; line-height: 18px; text-align: center;
+  border-radius: 9px; padding: 0 5px; margin-left: auto;
 }
+
+/* Notification panel */
+.notif-panel {
+  margin-top: 12px; border-top: 1px solid #eee; padding-top: 10px;
+}
+.notif-header {
+  display: flex; justify-content: space-between; align-items: center;
+  font-size: 13px; font-weight: 600; color: #666; margin-bottom: 8px;
+}
+.notif-mark-all {
+  background: none; border: none; color: var(--sage, #7a9e7e);
+  cursor: pointer; font-size: 12px; font-family: inherit;
+}
+.notif-list { max-height: 250px; overflow-y: auto; }
+.notif-item {
+  padding: 8px 0; border-bottom: 1px solid #f5f5f5; font-size: 13px;
+}
+.notif-item.unread { background: #fafafa; }
+.notif-title { font-weight: 500; color: #333; }
+.notif-body { color: #888; font-size: 12px; margin-top: 2px; white-space: pre-line; }
+.notif-time { color: #bbb; font-size: 11px; margin-top: 2px; }
+.notif-empty { text-align: center; color: #ccc; padding: 16px; font-size: 13px; }
+
+/* Bug report form */
+.bug-form { margin-top: 12px; border-top: 1px solid #eee; padding-top: 10px; }
+.bug-textarea {
+  width: 100%; padding: 8px 10px; border: 1.5px solid #d4cfc7;
+  border-radius: 8px; font-size: 13px; font-family: inherit;
+  outline: none; resize: vertical; box-sizing: border-box;
+}
+.bug-textarea:focus { border-color: #7a9e7e; }
+.bug-form-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 8px; }
+.btn-sm { padding: 6px 14px; border-radius: 8px; font-size: 13px; cursor: pointer; font-family: inherit; border: none; }
+.btn-primary { background: #7a9e7e; color: white; }
+.btn-outline { background: white; color: #666; border: 1px solid #d4cfc7; }
+.btn-sm:disabled { opacity: 0.5; cursor: not-allowed; }
 </style>