fix(ui): sync_events 查询补 JOIN sync_videos 取 camera_name(修 1054 报错)；feat(缩略图): Oracle 处理成功后抽首帧存 thumbs/{id}.jpg + /api/oracle/video/{id}/thumb 带 token 接口；fam-ui 视频会话显示缩略图(oracle_url+token)；start_ui.sh 注入 .env

fam-ui/src/app.py

@@ -25,6 +25,8 @@ from config_loader import load_config
 
 _cfg = load_config()
 _core_url = _cfg.get('core_url', 'http://127.0.0.1:8000')
+_oracle_url = (_cfg.get('oracle_url') or '').rstrip('/')
+_oracle_token = _cfg.get('oracle_token') or ''
 _db_cfg = _cfg.get('database', {})
 
 esc = _html.escape
@@ -518,8 +520,18 @@ if page == "🕒 事件时间轴":
                     f'<span class="bdg bdg-model">{esc(p)}</span>' for p in str(provider).split(','))
 
             summary = vid.get('summary_json') or '暂无全局摘要'
+            # 视频缩略图（Oracle 带 token 接口，无图时优雅降级）
+            thumb_html = ''
+            if _oracle_url:
+                thumb_html = (
+                    f'<img src="{_oracle_url}/api/oracle/video/{vid["id"]}/thumb'
+                    f'?token={_oracle_token}" '
+                    f'style="width:100%;max-height:240px;object-fit:cover;'
+                    f'border-radius:10px;margin-bottom:10px;'
+                    f'onerror="this.style.display=\'none\'"/>')
             st.markdown(
                 f'<div class="ev-head">'
+                f'{thumb_html}'
                 f'<div class="ev-title">'
                 f'<span>{esc(vid.get("camera_name") or "未知摄像头")}</span>'
                 f'<span class="bdg bdg-cam">会话 #{vid["id"]}</span>'
@@ -534,8 +546,11 @@ if page == "🕒 事件时间轴":
                 try:
                     cursor = conn.cursor()
                     cursor.execute(
-                        """SELECT ts, description, person_list_json, is_attention_event, camera_name
-                           FROM sync_events WHERE video_id=%s ORDER BY ts ASC""",
+                        """SELECT e.ts, e.description, e.person_list_json,
+                                  e.is_attention_event, v.camera_name
+                           FROM sync_events e
+                           JOIN sync_videos v ON e.video_id = v.id
+                           WHERE e.video_id=%s ORDER BY e.ts ASC""",
                         (selected_id,))
                     events = cursor.fetchall()
                 finally: