feat(监控): 实时服务状态界面 - Oracle 新增 service_activity 活动表(只保留7天，写入时清理)与 /api/oracle/activity 接口(队列实时状态/当前处理视频/模型调用/rclone/人物合并/最近50条活动)；VideoQueue 打点+当前处理跟踪+status()；PersonService 打点；rclone_sync.sh 同步结果写活动表；fam-ui 新增'🖥 服务状态'页(状态卡+活动时间流，直连 Oracle 实时拉取)

fam-edge/src/fam_edge/oracle_db.py

@@ -99,9 +99,17 @@ class OracleDB:
             error TEXT,
             created_at TEXT
         );
+        CREATE TABLE IF NOT EXISTS service_activity (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            service TEXT,
+            action TEXT,
+            detail TEXT,
+            ts TEXT
+        );
         CREATE INDEX IF NOT EXISTS idx_videos_updated ON videos(updated_at);
         CREATE INDEX IF NOT EXISTS idx_events_video ON events(video_id);
         CREATE INDEX IF NOT EXISTS idx_model_calls_created ON model_calls(created_at);
+        CREATE INDEX IF NOT EXISTS idx_activity_ts ON service_activity(ts);
         """)
         # 兼容旧库：补 retry_count / file_valid / media 等列（生产-消费队列用）
         cols = [r[1] for r in c.execute("PRAGMA table_info(videos)").fetchall()]
@@ -141,6 +149,53 @@ class OracleDB:
              duration_sec, 1 if success else 0, error or '', now))
         self._conn.commit()
 
+    # ------------------------------------------------------------------
+    # 服务活动日志（实时状态界面用；只保留最近 7 天）
+    # ------------------------------------------------------------------
+    def record_activity(self, service: str, action: str, detail: str = ''):
+        """记录一条服务活动（queue/rclone/person/model...）。
+
+        写入时顺带清理 7 天前的旧记录（用户要求只保留最近七天）。
+        """
+        now = _now_iso()
+        with self._write_lock:
+            self._conn.execute(
+                "INSERT INTO service_activity (service, action, detail, ts) "
+                "VALUES (?,?,?,?)",
+                (service, action, str(detail or '')[:500], now))
+            # 只保留最近 7 天
+            self._conn.execute(
+                "DELETE FROM service_activity WHERE ts < ?",
+                ((datetime.now(timezone(timedelta(hours=8))) - timedelta(days=7))
+                 .strftime('%Y-%m-%d %H:%M:%S'),))
+            self._conn.commit()
+
+    def get_recent_activities(self, limit: int = 50) -> List[Dict]:
+        """最近活动（时间倒序）。"""
+        rows = self._conn.execute(
+            "SELECT id, service, action, detail, ts FROM service_activity "
+            "ORDER BY id DESC LIMIT ?", (int(limit),)).fetchall()
+        return [dict(r) for r in rows]
+
+    def get_queue_status(self) -> Dict:
+        """实时队列/处理状态（前端服务状态卡用）。"""
+        total = self._conn.execute("SELECT COUNT(*) c FROM videos").fetchone()['c']
+        by_status = {}
+        for r in self._conn.execute(
+                "SELECT status, COUNT(*) c FROM videos GROUP BY status").fetchall():
+            by_status[r['status']] = r['c']
+        # 最近处理的视频（done/failed，按 updated_at 倒序）
+        recent = self._conn.execute(
+            "SELECT id, filename, status, compute_provider, updated_at, "
+            "processed_at, event_start_time FROM videos "
+            "ORDER BY COALESCE(updated_at, created_at) DESC LIMIT 5"
+        ).fetchall()
+        return {
+            "total": total,
+            "by_status": by_status,
+            "recent": [dict(r) for r in recent],
+        }
+
     def set_video_file_status(self, video_id: int, valid: bool,
                               error: str = '', media_meta: dict = None):
         """登记/更新文件校验结果：valid / file_error / media_meta_json"""