feat: 画图台并发重构 + 品牌定制 + 用户备注 + provider/UI 多项修复

画图台(并发出图):
- 不再锁定 UI:点「生成」开独立任务,可连续多次并发
- 结果网格一行5个、最多10张,进行中/成功/失败状态回显,刷新保留进行中
- 生图张数 1/2/3/4,各自独立计费出卡
- 点图=参考图(单张替换/多张替换末位);首尾帧模型点视频=抓末帧设为首帧,否则放大
- /logs 新增 statuses=pending,success 服务端过滤(status IN 专用 SQL)

品牌定制(设置→网站):
- 自定义 Logo 图片 + 子标题(公开页头部 + 管理侧栏)
- 邮件验证码标题改用站点名:{title} 邮箱验证码

提示词复制:
- 去掉复制按钮,点提示词文字即复制(预览/后台日志/图片管理/画图记录),统一弹「指令已复制」
- 新增 utils/clipboard.js:execCommand 回退,非安全上下文(http/IP)也能复制

用户管理:列表加「备注」列,新建/编辑可填改备注(默认空)

provider 修复:
- grok 401 正确判死封号(markTokenFailure 漏了 grok 池)
- grok 视频支持 15s
- custom 上游报错去敏感(抹掉上游 URL/IP,改英文短描述)
- custom 去掉额度耗尽锁定:429/欠费当临时错误,账号保持 active

UI/其它:
- 展示位弹窗浅色主题适配(tab 选中高亮、输入框边框)— 主题变量 + 中心补丁
- 自定义模型:时长可填任意秒数 + 15s 预设
- 首页设置/卡密弹窗去固定高度与滚动条
- 顶部菜单「记录」→「图片」
- 下线 Flow provider(代码移除)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/src/views/OverviewView.vue

@@ -37,6 +37,8 @@ async function refreshAll() {
 const EMPTY_WINDOW = { total: 0, success: 0, failed: 0, pending: 0, image: 0, video: 0, api: 0, web: 0, spent: 0 }
 const day = computed(() => dash.value?.day || EMPTY_WINDOW)
 const week = computed(() => dash.value?.week || EMPTY_WINDOW)
+// All-time persistent counters (stat_counters) — independent of log retention.
+const lifetime = computed(() => dash.value?.lifetime || {})
 const successRate = computed(() => (day.value.total ? Math.round((day.value.success / day.value.total) * 100) : 0))
 
 // Direction vs the previous 24h (24–48h ago) — a quiet day after a busy week is
@@ -54,7 +56,7 @@ const avg24hMs = computed(() => stats.value?.avg_elapsed_ms_24h ?? null)
 
 // ---- range-toggled top-N analytics (both windows ship in the payload, so the
 // 24h/7d switch is instant — no re-fetch) ----
-const rangeLabel = computed(() => (range.value === 'week' ? '近 7 天' : '近 24h'))
+const rangeLabel = computed(() => (range.value === 'week' ? '近 3 天' : '近 24h'))
 const analytics = computed(() => dash.value?.analytics?.[range.value] || { models: [], failures: [], top_users: [] })
 const modelUsage = computed(() => analytics.value.models || [])
 const usageMax = computed(() => Math.max(1, ...modelUsage.value.map((m) => m.count)))
@@ -153,7 +155,7 @@ onUnmounted(() => clearInterval(timer))
     </div>
 
     <!-- ===== KPI strip ===== -->
-    <div class="grid grid-cols-2 lg:grid-cols-4 gap-3">
+    <div class="grid grid-cols-2 lg:grid-cols-5 gap-3">
       <!-- 用户 -->
       <div class="card p-4">
         <div class="flex items-center justify-between">
@@ -196,6 +198,24 @@ onUnmounted(() => clearInterval(timer))
         </div>
       </div>
 
+      <!-- 累计生成(全部 · 持久计数,不随日志清理变化) -->
+      <div class="card p-4">
+        <div class="flex items-center justify-between">
+          <span class="text-xs text-white/55">累计生成</span>
+          <span class="w-7 h-7 rounded-lg bg-indigo-500/15 text-indigo-300 grid place-items-center ring-1 ring-indigo-400/20">
+            <Icon name="overview" class="w-3.5 h-3.5" />
+          </span>
+        </div>
+        <div class="text-2xl font-semibold tabular-nums mt-2">{{ fmtInt(lifetime.total || 0) }}</div>
+        <div class="text-[11px] mt-1 flex flex-wrap gap-x-2">
+          <span class="text-emerald-300 tabular-nums">{{ lifetime.success || 0 }} 成功</span>
+          <span v-if="lifetime.failed" class="text-rose-300 tabular-nums">{{ lifetime.failed }} 失败</span>
+        </div>
+        <div class="text-[10px] text-white/40 mt-1 tabular-nums">
+          API {{ lifetime.api || 0 }} · 图 {{ lifetime.image || 0 }} · 视 {{ lifetime.video || 0 }}
+        </div>
+      </div>
+
       <!-- 平均耗时 -->
       <div class="card p-4">
         <div class="flex items-center justify-between">
@@ -247,7 +267,7 @@ onUnmounted(() => clearInterval(timer))
       <div class="card p-4">
         <div class="text-xs text-white/55">活跃用户 · 24h</div>
         <div class="text-xl font-semibold tabular-nums mt-2">{{ fmtInt(dau) }}</div>
-        <div class="text-[11px] text-white/45 mt-1">近 7 天累计生成 {{ fmtInt(week.total) }}</div>
+        <div class="text-[11px] text-white/45 mt-1">近 3 天累计生成 {{ fmtInt(week.total) }}</div>
       </div>
     </div>
 
@@ -342,7 +362,7 @@ onUnmounted(() => clearInterval(timer))
         </div>
       </div>
 
-      <div class="card">
+      <div class="card flex flex-col">
         <div class="px-5 py-3 border-b border-white/[0.06] flex items-baseline justify-between">
           <h2 class="text-sm font-semibold">24 小时生成趋势</h2>
           <div class="text-[11px] text-white/45 flex items-center gap-3">
@@ -351,8 +371,8 @@ onUnmounted(() => clearInterval(timer))
             <span class="tabular-nums">峰值 {{ hourMax }}/h</span>
           </div>
         </div>
-        <div class="p-5">
-          <div class="flex items-end gap-[3px] h-32">
+        <div class="p-5 flex-1 flex flex-col">
+          <div class="flex items-end gap-[3px] flex-1 min-h-[8rem]">
             <div v-for="(b, i) in hourBuckets" :key="i"
                  class="group/bar relative flex-1 flex flex-col justify-end rounded-t overflow-visible"
                  :style="{ height: Math.max(4, ((b.image + b.video) / hourMax) * 100) + '%' }">
@@ -385,7 +405,7 @@ onUnmounted(() => clearInterval(timer))
         <button @click="range = 'week'"
                 class="px-3 py-1 rounded-md transition-colors"
                 :class="range === 'week' ? 'bg-white/10 text-white font-medium' : 'text-white/50 hover:text-white/80'">
-          近 7d
+          近 3d
         </button>
       </div>
     </div>
@@ -472,7 +492,7 @@ onUnmounted(() => clearInterval(timer))
             <div class="text-[11px] text-white/40 mt-1">{{ day.success }} 次成功生成</div>
           </div>
           <div>
-            <div class="text-xs text-white/55">近 7 天</div>
+            <div class="text-xs text-white/55">近 3 天</div>
             <div class="text-2xl font-semibold tabular-nums mt-1 text-amber-300">{{ fmtCredits(week.spent) }}</div>
             <div class="text-[11px] text-white/40 mt-1">{{ week.success }} 次成功生成</div>
           </div>