diff --git a/.memory/worklog.json b/.memory/worklog.json
index eec4984..866f425 100644
--- a/.memory/worklog.json
+++ b/.memory/worklog.json
@@ -1310,6 +1310,19 @@
       "type": "session-heartbeat",
       "message": "Claude 会话活跃 · 最近命令：claude · 1 项未提交变更 · 最近提交：auto-save 2026-05-13 11:06 (~4)",
       "files_changed": 1
+    },
+    {
+      "ts": "2026-05-13T11:12:17+08:00",
+      "type": "commit",
+      "message": "auto-save 2026-05-13 11:12 (~1)",
+      "hash": "7841e56",
+      "files_changed": 1
+    },
+    {
+      "ts": "2026-05-13T03:17:37Z",
+      "type": "session-heartbeat",
+      "message": "Claude 会话活跃 · 最近命令：claude · 2 项未提交变更 · 最近提交：auto-save 2026-05-13 11:12 (~1)",
+      "files_changed": 2
     }
   ]
 }
diff --git a/api/main.py b/api/main.py
index 200f0de..7495626 100644
--- a/api/main.py
+++ b/api/main.py
@@ -997,8 +997,8 @@ def describe_frame(job_id: str, idx: int) -> Job:
 # ---------- 清洗水印 / 元素提取（关键帧二阶段加工） ----------
 
 class CleanupReq(BaseModel):
-    # 可选 region：相对坐标 0-1，限制清洗范围
-    region: dict | None = None  # {"x": float, "y": float, "w": float, "h": float}
+    # 多个相对坐标矩形 0-1，限制清洗范围；空 / None = 全图清洗
+    regions: list[dict] | None = None  # [{"x","y","w","h"}, ...]
 
 
 def _region_to_phrase(r: dict) -> str: