feat: v0.12.6 公告弹窗 + HTML 编辑器

①公告改为弹窗（用户未读自动弹出，已读不再弹）
②生成页右上角小铃铛按钮可重新查看公告
③公告支持 HTML 渲染（加粗/红字/蓝字/标题/分割线/列表）
④超管公告编辑器加格式工具栏 + 预览按钮
⑤去掉旧的公告横幅

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

backend/apps/accounts/migrations/0012_user_last_read_announcement.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.2.29 on 2026-03-23 12:28
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('accounts', '0011_team_max_concurrent_tasks_user_spending_limit'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='user',
+            name='last_read_announcement',
+            field=models.DateTimeField(blank=True, null=True, verbose_name='最后阅读公告时间'),
+        ),
+    ]

backend/apps/accounts/models.py

@@ -59,6 +59,7 @@ class User(AbstractUser):
     spending_limit = models.DecimalField(max_digits=12, decimal_places=2, default=-1, verbose_name='用户总消费额度(元)')
     must_change_password = models.BooleanField(default=True, verbose_name='必须修改密码')
     disabled_by = models.CharField(max_length=10, blank=True, default='', verbose_name='禁用来源')
+    last_read_announcement = models.DateTimeField(null=True, blank=True, verbose_name='最后阅读公告时间')
     created_at = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')
     updated_at = models.DateTimeField(auto_now=True, verbose_name='更新时间')
 

backend/apps/generation/urls.py

@@ -11,6 +11,7 @@ urlpatterns = [
     path('video/tasks/<uuid:task_id>/favorite', views.video_task_toggle_favorite_view, name='video_task_toggle_favorite'),
     # Public announcement
     path('announcement', views.announcement_view, name='announcement'),
+    path('announcement/read', views.announcement_read_view, name='announcement_read'),
 
     # ── Super Admin: Dashboard ──
     path('admin/stats', views.admin_stats_view, name='admin_stats'),

backend/apps/generation/views.py

@@ -1939,11 +1939,28 @@ def admin_audit_logs_view(request):
 @api_view(['GET'])
 @permission_classes([IsAuthenticated])
 def announcement_view(request):
-    """GET /api/v1/announcement — return active announcement for logged-in users."""
+    """GET /api/v1/announcement — return active announcement + read status."""
     config, _ = QuotaConfig.objects.get_or_create(pk=1)
     if config.announcement_enabled and config.announcement:
-        return Response({'announcement': config.announcement, 'enabled': True})
-    return Response({'announcement': '', 'enabled': False})
+        is_read = False
+        if request.user.is_authenticated and request.user.last_read_announcement:
+            is_read = request.user.last_read_announcement >= config.updated_at
+        return Response({
+            'announcement': config.announcement,
+            'enabled': True,
+            'is_read': is_read,
+            'updated_at': config.updated_at.isoformat(),
+        })
+    return Response({'announcement': '', 'enabled': False, 'is_read': True})
+
+
+@api_view(['POST'])
+@permission_classes([IsAuthenticated])
+def announcement_read_view(request):
+    """POST /api/v1/announcement/read — mark announcement as read."""
+    request.user.last_read_announcement = timezone.now()
+    request.user.save(update_fields=['last_read_announcement'])
+    return Response({'ok': True})
 
 
 # ──────────────────────────────────────────────

web/src/components/AnnouncementModal.tsx

@@ -0,0 +1,85 @@
+import { useEffect, useState, useCallback } from 'react';
+import { videoApi } from '../lib/api';
+
+interface Props {
+  /** If true, force show even if already read (for manual open) */
+  forceOpen?: boolean;
+  onClose?: () => void;
+}
+
+export function AnnouncementModal({ forceOpen, onClose }: Props) {
+  const [content, setContent] = useState('');
+  const [visible, setVisible] = useState(false);
+
+  useEffect(() => {
+    videoApi.getAnnouncement().then(({ data }) => {
+      if (data.enabled && data.announcement) {
+        setContent(data.announcement);
+        if (forceOpen || !data.is_read) {
+          setVisible(true);
+        }
+      }
+    }).catch(() => {});
+  }, [forceOpen]);
+
+  const handleClose = useCallback(() => {
+    videoApi.readAnnouncement().catch(() => {});
+    setVisible(false);
+    onClose?.();
+  }, [onClose]);
+
+  if (!visible || !content) return null;
+
+  return (
+    <div
+      style={{
+        position: 'fixed', inset: 0, zIndex: 400,
+        background: 'rgba(0, 0, 0, 0.6)',
+        display: 'flex', alignItems: 'center', justifyContent: 'center',
+      }}
+      onMouseDown={(e) => { if (e.target === e.currentTarget) handleClose(); }}
+    >
+      <div style={{
+        background: '#16161e', border: '1px solid var(--color-border-card)',
+        borderRadius: 12, padding: '28px 32px', maxWidth: 520, width: '90vw',
+        maxHeight: '70vh', overflowY: 'auto',
+        scrollbarWidth: 'none',
+      }}>
+        <div style={{
+          display: 'flex', justifyContent: 'space-between', alignItems: 'center',
+          marginBottom: 16,
+        }}>
+          <span style={{ fontSize: 16, fontWeight: 600, color: 'var(--color-text-primary)' }}>
+            📢 公告
+          </span>
+          <button
+            onClick={handleClose}
+            style={{
+              background: 'none', border: 'none', color: 'var(--color-text-secondary)',
+              cursor: 'pointer', fontSize: 18, padding: 4,
+            }}
+          >✕</button>
+        </div>
+        <div
+          style={{
+            fontSize: 14, lineHeight: 1.8, color: 'var(--color-text-primary)',
+            wordBreak: 'break-word', padding: '0 8px',
+          }}
+          dangerouslySetInnerHTML={{ __html: `<style>li{margin-left:16px}</style>${content}` }}
+        />
+        <div style={{ textAlign: 'center', marginTop: 20 }}>
+          <button
+            onClick={handleClose}
+            style={{
+              padding: '8px 32px', background: 'var(--color-primary)',
+              border: 'none', borderRadius: 8, color: '#fff', fontSize: 14,
+              cursor: 'pointer',
+            }}
+          >
+            我知道了
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+}

web/src/components/VideoGenerationPage.tsx

@@ -4,6 +4,7 @@ import { InputBar } from './InputBar';
 import { GenerationCard } from './GenerationCard';
 import { VideoDetailModal } from './VideoDetailModal';
 import { AnnouncementBanner } from './AnnouncementBanner';
+import { AnnouncementModal } from './AnnouncementModal';
 import { useGenerationStore } from '../store/generation';
 import { useAuthStore } from '../store/auth';
 import type { GenerationTask } from '../types';
@@ -24,6 +25,8 @@ export function VideoGenerationPage() {
   const savedScrollTop = useGenerationStore((s) => s.savedScrollTop);
   const saveScrollPosition = useGenerationStore((s) => s.saveScrollPosition);
   const [detailTaskId, setDetailTaskId] = useState<string | null>(null);
+  const [showAnnouncement, setShowAnnouncement] = useState(false);
+  const [autoAnnouncementDone, setAutoAnnouncementDone] = useState(false);
   const detailTask = useMemo(() => detailTaskId ? tasks.find((t) => t.id === detailTaskId) || null : null, [detailTaskId, tasks]);
   const setDetailTask = useCallback((t: GenerationTask | null) => setDetailTaskId(t?.id || null), []);
 
@@ -120,7 +123,27 @@ export function VideoGenerationPage() {
     <div className={styles.layout}>
       <Sidebar />
       <main className={styles.main}>
-        <AnnouncementBanner />
+        {/* 公告已改为弹窗，旧的横幅不再显示 */}
+        {/* 右上角公告小喇叭 */}
+        <button
+          onClick={() => setShowAnnouncement(true)}
+          style={{
+            position: 'absolute', top: 12, right: 16, zIndex: 20,
+            background: 'rgba(255,255,255,0.06)', border: '1px solid var(--color-border-card)',
+            borderRadius: '50%', width: 32, height: 32,
+            display: 'flex', alignItems: 'center', justifyContent: 'center',
+            cursor: 'pointer', color: 'var(--color-text-secondary)',
+            transition: 'all 0.15s',
+          }}
+          onMouseEnter={(e) => { (e.currentTarget as HTMLElement).style.color = 'var(--color-primary)'; (e.currentTarget as HTMLElement).style.borderColor = 'var(--color-primary)'; }}
+          onMouseLeave={(e) => { (e.currentTarget as HTMLElement).style.color = 'var(--color-text-secondary)'; (e.currentTarget as HTMLElement).style.borderColor = 'var(--color-border-card)'; }}
+          title="查看公告"
+        >
+          <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round">
+            <path d="M18 8A6 6 0 0 0 6 8c0 7-3 9-3 9h18s-3-2-3-9" />
+            <path d="M13.73 21a2 2 0 0 1-3.46 0" />
+          </svg>
+        </button>
         <div className={styles.contentArea} ref={scrollRef} onScroll={handleScroll}>
           {tasks.length === 0 ? (
             <div className={styles.emptyArea}>
@@ -157,6 +180,14 @@ export function VideoGenerationPage() {
         onPrev={() => detailIdx > 0 && setDetailTask(completedTasks[detailIdx - 1])}
         onNext={() => detailIdx < completedTasks.length - 1 && setDetailTask(completedTasks[detailIdx + 1])}
       />
+      {/* 自动弹窗（首次未读）*/}
+      {!autoAnnouncementDone && (
+        <AnnouncementModal onClose={() => setAutoAnnouncementDone(true)} />
+      )}
+      {/* 手动弹窗（点小喇叭）*/}
+      {showAnnouncement && (
+        <AnnouncementModal forceOpen onClose={() => setShowAnnouncement(false)} />
+      )}
     </div>
   );
 }

web/src/lib/api.ts

@@ -160,7 +160,10 @@ export const videoApi = {
     api.post<{ is_favorited: boolean }>(`/video/tasks/${taskId}/favorite`),
 
   getAnnouncement: () =>
-    api.get<{ announcement: string; enabled: boolean }>('/announcement'),
+    api.get<{ announcement: string; enabled: boolean; is_read: boolean; updated_at?: string }>('/announcement'),
+
+  readAnnouncement: () =>
+    api.post('/announcement/read'),
 };
 
 // Admin APIs (Super Admin)

web/src/pages/SettingsPage.tsx

@@ -1,4 +1,4 @@
-import { useEffect, useState, useCallback } from 'react';
+import { useEffect, useState, useCallback, useRef } from 'react';
 import { adminApi } from '../lib/api';
 import type { SystemSettings } from '../types';
 import { showToast } from '../components/Toast';
@@ -34,6 +34,8 @@ export function SettingsPage() {
   });
   const [testingFeishu, setTestingFeishu] = useState(false);
   const [testingSms, setTestingSms] = useState(false);
+  const [previewAnnouncement, setPreviewAnnouncement] = useState(false);
+  const announcementRef = useRef<HTMLTextAreaElement>(null);
   const [loading, setLoading] = useState(true);
   const [saving, setSaving] = useState(false);
 
@@ -197,14 +199,85 @@ export function SettingsPage() {
           </label>
         </div>
         <div className={styles.formGroup}>
-          <label>公告内容</label>
-          <textarea
-            className={styles.textarea}
-            value={settings.announcement}
-            onChange={(e) => setSettings({ ...settings, announcement: e.target.value })}
-            placeholder="输入公告内容..."
-            rows={4}
-          />
+          <label>公告内容（支持 HTML 格式）</label>
+          <div style={{ display: 'flex', gap: 4, marginBottom: 6, flexWrap: 'wrap' }}>
+            {[
+              { label: 'B', tag: 'b', title: '加粗' },
+              { label: '红字', wrap: ['<span style="color:#ff4d4f">', '</span>'], title: '红色文字' },
+              { label: '蓝字', wrap: ['<span style="color:#00b8e6">', '</span>'], title: '蓝色文字' },
+              { label: 'H3', wrap: ['<h3 style="margin:8px 0 4px">', '</h3>'], title: '标题' },
+              { label: '分割线', insert: '<hr style="border:none;border-top:1px solid #333;margin:12px 0">', title: '分割线' },
+              { label: '列表项', insert: '<li>', title: '列表项' },
+            ].map((btn) => (
+              <button
+                key={btn.label}
+                type="button"
+                title={btn.title}
+                onClick={() => {
+                  const ta = announcementRef.current;
+                  if (!ta) return;
+                  const start = ta.selectionStart;
+                  const end = ta.selectionEnd;
+                  const text = settings.announcement;
+                  const selected = text.substring(start, end);
+                  let newText: string;
+                  let cursorPos: number;
+                  if ('insert' in btn && btn.insert) {
+                    newText = text.substring(0, start) + btn.insert + text.substring(end);
+                    cursorPos = start + btn.insert.length;
+                  } else if ('wrap' in btn && btn.wrap) {
+                    newText = text.substring(0, start) + btn.wrap[0] + selected + btn.wrap[1] + text.substring(end);
+                    cursorPos = start + btn.wrap[0].length + selected.length + btn.wrap[1].length;
+                  } else {
+                    const open = `<${btn.tag}>`;
+                    const close = `</${btn.tag}>`;
+                    newText = text.substring(0, start) + open + selected + close + text.substring(end);
+                    cursorPos = start + open.length + selected.length + close.length;
+                  }
+                  setSettings({ ...settings, announcement: newText });
+                  setTimeout(() => { ta.focus(); ta.setSelectionRange(cursorPos, cursorPos); }, 0);
+                }}
+                style={{
+                  padding: '2px 8px', fontSize: 12, background: 'rgba(255,255,255,0.06)',
+                  border: '1px solid var(--color-border-card)', borderRadius: 4,
+                  color: 'var(--color-text-secondary)', cursor: 'pointer',
+                }}
+              >
+                {btn.label}
+              </button>
+            ))}
+            <button
+              type="button"
+              onClick={() => setPreviewAnnouncement(!previewAnnouncement)}
+              style={{
+                padding: '2px 8px', fontSize: 12,
+                background: previewAnnouncement ? 'rgba(108,99,255,0.12)' : 'rgba(255,255,255,0.06)',
+                border: `1px solid ${previewAnnouncement ? 'var(--color-primary)' : 'var(--color-border-card)'}`,
+                borderRadius: 4,
+                color: previewAnnouncement ? 'var(--color-primary)' : 'var(--color-text-secondary)',
+                cursor: 'pointer',
+              }}
+            >
+              {previewAnnouncement ? '编辑' : '预览'}
+            </button>
+          </div>
+          {previewAnnouncement ? (
+            <div style={{
+              padding: '12px 16px', background: 'var(--color-bg-page)',
+              border: '1px solid var(--color-border-card)', borderRadius: 8,
+              fontSize: 14, lineHeight: 1.8, color: 'var(--color-text-primary)',
+              minHeight: 100, wordBreak: 'break-word',
+            }} dangerouslySetInnerHTML={{ __html: settings.announcement }} />
+          ) : (
+            <textarea
+              ref={announcementRef}
+              className={styles.textarea}
+              value={settings.announcement}
+              onChange={(e) => setSettings({ ...settings, announcement: e.target.value })}
+              placeholder="输入公告内容，支持 HTML 格式..."
+              rows={6}
+            />
+          )}
         </div>
         <button className={styles.saveBtn} onClick={handleSaveAnnouncement} disabled={saving}>
           {saving ? '保存中...' : '保存公告'}