feat(sns): 前端新增朋友圈页面并接入候选匹配

- 新增 /sns 页面：时间线列表、账号切换、隐私模式、复制动态 JSON

- 图片预览支持候选匹配切换并保存（localStorage + /api/sns/media_picks）

- 聊天页侧边栏增加头像/朋友圈入口，隐私模式开关持久化（chat/sns 共用）

- app.vue 增加 --dpr 与 sidebar rail CSS 变量，并在 resize 时刷新

- useApi 补充 sns 相关接口封装

Author: 2977094657

frontend/app.vue

@@ -14,12 +14,23 @@
 // So we detect desktop onMounted and update reactively.
 const isDesktop = ref(false)
 
+const updateDprVar = () => {
+  const dpr = window.devicePixelRatio || 1
+  document.documentElement.style.setProperty('--dpr', String(dpr))
+}
+
 onMounted(() => {
   isDesktop.value = !!window?.wechatDesktop
+  updateDprVar()
+  window.addEventListener('resize', updateDprVar)
+})
+
+onBeforeUnmount(() => {
+  window.removeEventListener('resize', updateDprVar)
 })
 
 const route = useRoute()
-const isChatRoute = computed(() => route.path?.startsWith('/chat'))
+const isChatRoute = computed(() => route.path?.startsWith('/chat') || route.path?.startsWith('/sns'))
 
 const rootClass = computed(() => {
   const base = 'bg-gradient-to-br from-green-50 via-emerald-50 to-green-100'
@@ -34,6 +45,14 @@ const contentClass = computed(() =>
 </script>
 
 <style>
+:root {
+  --dpr: 1;
+  /* Left sidebar rail (chat/sns): icon size + spacing */
+  --sidebar-rail-step: 48px;
+  --sidebar-rail-btn: 32px;
+  --sidebar-rail-icon: 24px;
+}
+
 /* Electron 桌面端使用自绘标题栏（frame: false）。
  * 页面里如果继续用 Tailwind 的 h-screen/min-h-screen（100vh），会把标题栏高度叠加进去，从而出现外层滚动条。
  * 这里把 “screen” 在桌面端视为内容区高度（100%），让标题栏高度自然内嵌在布局里。 */

frontend/composables/useApi.js

@@ -179,6 +179,46 @@ export const useApi = () => {
     return await request(url)
   }
 
+  // 朋友圈时间线
+  const listSnsTimeline = async (params = {}) => {
+    const query = new URLSearchParams()
+    if (params && params.account) query.set('account', params.account)
+    if (params && params.limit != null) query.set('limit', String(params.limit))
+    if (params && params.offset != null) query.set('offset', String(params.offset))
+    if (params && params.usernames && Array.isArray(params.usernames) && params.usernames.length > 0) {
+      query.set('usernames', params.usernames.join(','))
+    } else if (params && params.usernames && typeof params.usernames === 'string') {
+      query.set('usernames', params.usernames)
+    }
+    if (params && params.keyword) query.set('keyword', params.keyword)
+    const url = '/sns/timeline' + (query.toString() ? `?${query.toString()}` : '')
+    return await request(url)
+  }
+
+  // 朋友圈图片本地缓存候选（用于错图时手动选择）
+  const listSnsMediaCandidates = async (params = {}) => {
+    const query = new URLSearchParams()
+    if (params && params.account) query.set('account', params.account)
+    if (params && params.create_time != null) query.set('create_time', String(params.create_time))
+    if (params && params.width != null) query.set('width', String(params.width))
+    if (params && params.height != null) query.set('height', String(params.height))
+    if (params && params.limit != null) query.set('limit', String(params.limit))
+    if (params && params.offset != null) query.set('offset', String(params.offset))
+    const url = '/sns/media_candidates' + (query.toString() ? `?${query.toString()}` : '')
+    return await request(url)
+  }
+
+  // 保存朋友圈图片手动匹配结果（本机）
+  const saveSnsMediaPicks = async (data = {}) => {
+    return await request('/sns/media_picks', {
+      method: 'POST',
+      body: {
+        account: data.account || null,
+        picks: (data && data.picks && typeof data.picks === 'object' && !Array.isArray(data.picks)) ? data.picks : {}
+      }
+    })
+  }
+
   const openChatMediaFolder = async (params = {}) => {
     const query = new URLSearchParams()
     if (params && params.account) query.set('account', params.account)
@@ -288,6 +328,9 @@ export const useApi = () => {
     buildChatSearchIndex,
     listChatSearchSenders,
     getChatMessagesAround,
+    listSnsTimeline,
+    listSnsMediaCandidates,
+    saveSnsMediaPicks,
     openChatMediaFolder,
     downloadChatEmoji,
     saveMediaKeys,

frontend/pages/chat/[[username]].vue

@@ -1,46 +1,99 @@
 <template>
   <div class="h-screen flex overflow-hidden" style="background-color: #EDEDED">
     <!-- 左侧边栏 -->
-    <div class="w-16 border-r border-gray-200 flex flex-col" style="background-color: #e8e7e7">
-      <div class="flex-1 flex flex-col justify-start pt-0">
+    <div class="border-r border-gray-200 flex flex-col" style="background-color: #e8e7e7; width: 60px; min-width: 60px; max-width: 60px">
+      <div class="flex-1 flex flex-col justify-start pt-0 gap-0">
+        <!-- 头像（类似微信侧边栏） -->
+        <div class="w-full h-[60px] flex items-center justify-center">
+          <div class="w-[40px] h-[40px] rounded-md overflow-hidden bg-gray-300 flex-shrink-0">
+            <img v-if="selfAvatarUrl" :src="selfAvatarUrl" alt="avatar" class="w-full h-full object-cover" />
+            <div
+              v-else
+              class="w-full h-full flex items-center justify-center text-white text-xs font-bold"
+              style="background-color: #4B5563"
+            >
+              我
+            </div>
+          </div>
+        </div>
+
         <!-- 聊天图标 (与 oh-my-wechat 一致) -->
-        <div class="w-16 h-16 flex items-center justify-center chat-tab selected text-[#07b75b]">
-          <div class="w-7 h-7">
-            <svg class="w-full h-full" viewBox="0 0 24 24" fill="currentColor" aria-hidden="true">
-              <path d="M12 19.8C17.52 19.8 22 15.99 22 11.3C22 6.6 17.52 2.8 12 2.8C6.48 2.8 2 6.6 2 11.3C2 13.29 2.8 15.12 4.15 16.57C4.6 17.05 4.82 17.29 4.92 17.44C5.14 17.79 5.21 17.99 5.23 18.4C5.24 18.59 5.22 18.81 5.16 19.26C5.1 19.75 5.07 19.99 5.13 20.16C5.23 20.49 5.53 20.71 5.87 20.72C6.04 20.72 6.27 20.63 6.72 20.43L8.07 19.86C8.43 19.71 8.61 19.63 8.77 19.59C8.95 19.55 9.04 19.54 9.22 19.54C9.39 19.53 9.64 19.57 10.14 19.65C10.74 19.75 11.37 19.8 12 19.8Z"/>
-            </svg>
+        <div class="w-full h-[var(--sidebar-rail-step)] flex items-center justify-center group">
+          <div class="w-[var(--sidebar-rail-btn)] h-[var(--sidebar-rail-btn)] rounded-md bg-transparent group-hover:bg-[#E1E1E1] flex items-center justify-center transition-colors">
+            <div class="w-[var(--sidebar-rail-icon)] h-[var(--sidebar-rail-icon)] text-[#07b75b]">
+              <svg class="w-full h-full" viewBox="0 0 24 24" fill="currentColor" aria-hidden="true">
+                <path d="M12 19.8C17.52 19.8 22 15.99 22 11.3C22 6.6 17.52 2.8 12 2.8C6.48 2.8 2 6.6 2 11.3C2 13.29 2.8 15.12 4.15 16.57C4.6 17.05 4.82 17.29 4.92 17.44C5.14 17.79 5.21 17.99 5.23 18.4C5.24 18.59 5.22 18.81 5.16 19.26C5.1 19.75 5.07 19.99 5.13 20.16C5.23 20.49 5.53 20.71 5.87 20.72C6.04 20.72 6.27 20.63 6.72 20.43L8.07 19.86C8.43 19.71 8.61 19.63 8.77 19.59C8.95 19.55 9.04 19.54 9.22 19.54C9.39 19.53 9.64 19.57 10.14 19.65C10.74 19.75 11.37 19.8 12 19.8Z" />
+              </svg>
+            </div>
+          </div>
+        </div>
+
+        <!-- 朋友圈图标（Aperture 风格） -->
+        <div
+          class="w-full h-[var(--sidebar-rail-step)] flex items-center justify-center cursor-pointer group"
+          title="朋友圈"
+          @click="goSns"
+        >
+          <div
+            class="w-[var(--sidebar-rail-btn)] h-[var(--sidebar-rail-btn)] rounded-md flex items-center justify-center transition-colors bg-transparent group-hover:bg-[#E1E1E1]"
+          >
+            <div class="w-[var(--sidebar-rail-icon)] h-[var(--sidebar-rail-icon)]" :class="isSnsRoute ? 'text-[#07b75b]' : 'text-[#5d5d5d]'">
+              <svg
+                class="w-full h-full"
+                viewBox="0 0 24 24"
+                fill="none"
+                stroke="currentColor"
+                stroke-width="1.5"
+                stroke-linecap="round"
+                stroke-linejoin="round"
+                aria-hidden="true"
+              >
+                <circle cx="12" cy="12" r="10" />
+                <line x1="14.31" y1="8" x2="20.05" y2="17.94" />
+                <line x1="9.69" y1="8" x2="21.17" y2="8" />
+                <line x1="7.38" y1="12" x2="13.12" y2="2.06" />
+                <line x1="9.69" y1="16" x2="3.95" y2="6.06" />
+                <line x1="14.31" y1="16" x2="2.83" y2="16" />
+                <line x1="16.62" y1="12" x2="10.88" y2="21.94" />
+              </svg>
+            </div>
           </div>
         </div>
 
         <!-- 隐私模式按钮 -->
         <div
-          class="w-16 h-12 flex items-center justify-center cursor-pointer transition-colors"
-          :class="privacyMode ? 'text-[#03C160]' : 'text-gray-500 hover:text-gray-700'"
+          class="w-full h-[var(--sidebar-rail-step)] flex items-center justify-center cursor-pointer group"
           @click="privacyMode = !privacyMode"
           :title="privacyMode ? '关闭隐私模式' : '开启隐私模式'"
         >
-          <svg class="w-6 h-6" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
-            <path v-if="privacyMode" stroke-linecap="round" stroke-linejoin="round" d="M3.98 8.223A10.477 10.477 0 001.934 12C3.226 16.338 7.244 19.5 12 19.5c.993 0 1.953-.138 2.863-.395M6.228 6.228A10.45 10.45 0 0112 4.5c4.756 0 8.773 3.162 10.065 7.498a10.523 10.523 0 01-4.293 5.774M6.228 6.228L3 3m3.228 3.228l3.65 3.65m7.894 7.894L21 21m-3.228-3.228l-3.65-3.65m0 0a3 3 0 10-4.243-4.243m4.242 4.242L9.88 9.88" />
-            <path v-else stroke-linecap="round" stroke-linejoin="round" d="M2.036 12.322a1.012 1.012 0 010-.639C3.423 7.51 7.36 4.5 12 4.5c4.638 0 8.573 3.007 9.963 7.178.07.207.07.431 0 .639C20.577 16.49 16.64 19.5 12 19.5c-4.638 0-8.573-3.007-9.963-7.178z" />
-            <circle v-if="!privacyMode" cx="12" cy="12" r="3" />
-          </svg>
+          <div
+            class="w-[var(--sidebar-rail-btn)] h-[var(--sidebar-rail-btn)] rounded-md flex items-center justify-center transition-colors bg-transparent group-hover:bg-[#E1E1E1]"
+          >
+            <svg class="w-[var(--sidebar-rail-icon)] h-[var(--sidebar-rail-icon)]" :class="privacyMode ? 'text-[#07b75b]' : 'text-[#5d5d5d]'" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5">
+              <path v-if="privacyMode" stroke-linecap="round" stroke-linejoin="round" d="M3.98 8.223A10.477 10.477 0 001.934 12C3.226 16.338 7.244 19.5 12 19.5c.993 0 1.953-.138 2.863-.395M6.228 6.228A10.45 10.45 0 0112 4.5c4.756 0 8.773 3.162 10.065 7.498a10.523 10.523 0 01-4.293 5.774M6.228 6.228L3 3m3.228 3.228l3.65 3.65m7.894 7.894L21 21m-3.228-3.228l-3.65-3.65m0 0a3 3 0 10-4.243-4.243m4.242 4.242L9.88 9.88" />
+              <path v-else stroke-linecap="round" stroke-linejoin="round" d="M2.036 12.322a1.012 1.012 0 010-.639C3.423 7.51 7.36 4.5 12 4.5c4.638 0 8.573 3.007 9.963 7.178.07.207.07.431 0 .639C20.577 16.49 16.64 19.5 12 19.5c-4.638 0-8.573-3.007-9.963-7.178z" />
+              <circle v-if="!privacyMode" cx="12" cy="12" r="3" />
+            </svg>
+          </div>
         </div>
 
         <!-- 设置按钮（仅桌面端） -->
         <div
           v-if="isDesktopEnv"
-          class="w-16 h-12 flex items-center justify-center cursor-pointer transition-colors text-gray-500 hover:text-gray-700"
+          class="w-full h-[var(--sidebar-rail-step)] flex items-center justify-center cursor-pointer group"
           @click="openDesktopSettings"
           title="设置"
         >
-          <svg class="w-6 h-6" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
-            <path
-              stroke-linecap="round"
-              stroke-linejoin="round"
-              d="M10.325 4.317c.426-1.756 2.924-1.756 3.35 0a1.724 1.724 0 002.573 1.066c1.543-.94 3.31.826 2.37 2.37a1.724 1.724 0 001.065 2.572c1.756.426 1.756 2.924 0 3.35a1.724 1.724 0 00-1.066 2.573c.94 1.543-.826 3.31-2.37 2.37a1.724 1.724 0 00-2.572 1.065c-.426 1.756-2.924 1.756-3.35 0a1.724 1.724 0 00-2.573-1.066c-1.543.94-3.31-.826-2.37-2.37a1.724 1.724 0 00-1.065-2.572c-1.756-.426-1.756-2.924 0-3.35a1.724 1.724 0 001.066-2.573c-.94-1.543.826-3.31 2.37-2.37.996.608 2.296.07 2.572-1.065z"
-            />
-            <path stroke-linecap="round" stroke-linejoin="round" d="M15 12a3 3 0 11-6 0 3 3 0 016 0z" />
-          </svg>
+          <div class="w-[var(--sidebar-rail-btn)] h-[var(--sidebar-rail-btn)] rounded-md flex items-center justify-center transition-colors bg-transparent group-hover:bg-[#E1E1E1]">
+            <svg class="w-[var(--sidebar-rail-icon)] h-[var(--sidebar-rail-icon)] text-[#5d5d5d]" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5">
+              <path
+                stroke-linecap="round"
+                stroke-linejoin="round"
+                d="M10.325 4.317c.426-1.756 2.924-1.756 3.35 0a1.724 1.724 0 002.573 1.066c1.543-.94 3.31.826 2.37 2.37a1.724 1.724 0 001.065 2.572c1.756.426 1.756 2.924 0 3.35a1.724 1.724 0 00-1.066 2.573c.94 1.543-.826 3.31-2.37 2.37a1.724 1.724 0 00-2.572 1.065c-.426 1.756-2.924 1.756-3.35 0a1.724 1.724 0 00-2.573-1.066c-1.543.94-3.31-.826-2.37-2.37a1.724 1.724 0 00-1.065-2.572c-1.756-.426-1.756-2.924 0-3.35a1.724 1.724 0 001.066-2.573c-.94-1.543.826-3.31 2.37-2.37.996.608 2.296.07 2.572-1.065z"
+              />
+              <path stroke-linecap="round" stroke-linejoin="round" d="M15 12a3 3 0 11-6 0 3 3 0 016 0z" />
+            </svg>
+          </div>
         </div>
       </div>
     </div>
@@ -1714,6 +1767,7 @@ useHead({
 })
 
 const route = useRoute()
+const isSnsRoute = computed(() => route.path?.startsWith('/sns'))
 
 const routeUsername = computed(() => {
   const raw = route.params.username
@@ -1729,6 +1783,24 @@ const selectedContact = ref(null)
 
 // 隐私模式
 const privacyMode = ref(false)
+const PRIVACY_MODE_KEY = 'ui.privacy_mode'
+
+onMounted(() => {
+  if (!process.client) return
+  try {
+    privacyMode.value = localStorage.getItem(PRIVACY_MODE_KEY) === '1'
+  } catch {}
+})
+
+watch(
+  () => privacyMode.value,
+  (v) => {
+    if (!process.client) return
+    try {
+      localStorage.setItem(PRIVACY_MODE_KEY, v ? '1' : '0')
+    } catch {}
+  }
+)
 
 // 桌面端设置（仅 Electron 环境可见）
 const isDesktopEnv = ref(false)
@@ -1880,6 +1952,18 @@ const selectedAccount = ref(null)
 
 const availableAccounts = ref([])
 
+const sidebarMediaBase = process.client ? 'http://localhost:8000' : ''
+
+const selfAvatarUrl = computed(() => {
+  const acc = String(selectedAccount.value || '').trim()
+  if (!acc) return ''
+  return `${sidebarMediaBase}/api/chat/avatar?account=${encodeURIComponent(acc)}&username=${encodeURIComponent(acc)}`
+})
+
+const goSns = async () => {
+  await navigateTo('/sns')
+}
+
 // 实时更新（WCDB DLL + db_storage watcher）
 const realtimeEnabled = ref(false)
 const realtimeAvailable = ref(false)