diff --git a/app/engine/routes/chat.py b/app/engine/routes/chat.py
index bf3acb5..272bb99 100644
--- a/app/engine/routes/chat.py
+++ b/app/engine/routes/chat.py
@@ -80,7 +80,9 @@ async def ws_chat(websocket: WebSocket):
                 )
                 merged_info = {**client_info, **(init_msg.get("client_info") or {})}
                 # 服务端 XFF 优先于客户端自报 ip（客户端自报可伪造，可伪造面最小）；
-                # 无 XFF 时保留客户端自报，user_agent 等其他字段不受影响
+                # 无 XFF 时保留客户端自报，user_agent 等其他字段不受影响。
+                # （REST 侧已同步上游用直连 host，WS 保持自报——见
+                #   tests/test_chat_rest_ip.py）
                 if forwarded:
                     merged_info["ip"] = forwarded
                 # Task 10 复审: 专用 site 字段同样赢过 init_msg.client_info
diff --git a/app/engine/routes/chat_rest.py b/app/engine/routes/chat_rest.py
index 96fcb04..c976efd 100644
--- a/app/engine/routes/chat_rest.py
+++ b/app/engine/routes/chat_rest.py
@@ -34,16 +34,16 @@ class SessionRequest(BaseModel):
 
 
 def _server_ip(request: Request) -> str:
-    """服务端可信 IP：XFF 第一段优先，否则直连 host；全空返回空串。
+    """服务端可信 IP:XFF 第一段优先,否则直连 host;全空返回空串。
 
-    同步自上游 ai-kefu(app/api/routes/chat_rest.py)：REST 路径原先只在有
-    XFF 时覆盖自报 ip，直连(无代理)场景自报假 IP 原样落库。"""
+    同步自上游 ai-kefu(app/api/routes/chat_rest.py):REST 路径原先只在有
+    XFF 时覆盖自报 ip,直连(无代理)场景自报假 IP 原样落库。"""
     xff = request.headers.get("x-forwarded-for", "").split(",")[0].strip()
     return xff or (request.client.host if request.client else "")
 
 
 def _merge_client_info(client_info: dict | None, server_ip: str) -> dict:
-    """服务端 IP 覆盖自报 ip 键；服务端为空时保留自报（空串不得冲掉客户端值）。"""
+    """服务端 IP 覆盖自报 ip 键;服务端为空时保留自报(空串不得冲掉客户端值)。"""
     merged = dict(client_info or {})
     if server_ip:
         merged["ip"] = server_ip
@@ -58,8 +58,8 @@ async def chat_session(req: SessionRequest, request: Request):
     `raw_info` (only when non-None). `client_info` is stored for analytics only
     (ip/ua/device-id/lang) and never fed to the AI prompt.
     """
-    # 服务端可信 IP 同步自上游 ai-kefu：XFF 第一段优先，无 XFF 用直连 host
-    # 覆盖客户端自报（可伪造面最小）；全空保留自报。?site= 处理不变。
+    # 服务端可信 IP 同步自上游 ai-kefu:XFF 第一段优先,无 XFF 用直连 host
+    # 覆盖客户端自报(可伪造面最小);全空保留自报。?site= 处理不变。
     client_info = _merge_client_info(req.client_info, _server_ip(request))
 
     # Task 10: ?site=<slug> 记入 client_info 作会话站点标(与 WS init 的
diff --git a/tests/test_lead_push_cc.py b/tests/test_lead_push_cc.py
index f92673f..16f9467 100644
--- a/tests/test_lead_push_cc.py
+++ b/tests/test_lead_push_cc.py
@@ -6,7 +6,8 @@ monkeypatch settings.PUSH_ENABLED → dispatch_lead_push → 查 request_payload
 断言按 jc(Task 6)主线重锚,语义等价:
 - 派生键名: 上游 "区号未确认" → jc "号码补全说明"(号码补全的推送披露口);
 - 条目措辞: 上游 "渠道(标注)" → jc completion_note 的 "原文→e164+标注"
-  (标注常量与 cc_completion 同源,双钉防漂移);
+  (标注常量与 cc_completion 同源;字节级措辞钉在 test_lead_push_service.py /
+  test_email_rendering.py,跨文件互补);
 - NOTE_CUSTOMER 已在 jc 并入 NOTE_UNCONFIRMED(customer_stated 未确认与
   IP 推测同口径标注,上游的措辞区分被主线统一);
 - confirmed 入参传裸号原文(jc 生产契约: dispatch 收 normalize_contacts
@@ -73,7 +74,8 @@ def test_push_payload_uses_e164_and_filters_underscore(async_db, monkeypatch):
     p = log.request_payload
     assert p["contact"]["whatsapp"] == "+254712345678"   # 契约值=e164(Task6投影)
     assert not [k for k in p["profile"] if str(k).startswith("_")]  # _cc/_secret不外泄
-    # 双钉: 与常量同源 + 字节级措辞(改常量必须联动,措辞本身不得漂移)
+    # 常量同源钉在本文件,字节级措辞钉在 test_lead_push_service.py /
+    # test_email_rendering.py(跨文件互补)
     assert p["profile"]["号码补全说明"] == f"0712345678→+254712345678{NOTE_UNCONFIRMED}"
 
 
@@ -118,7 +120,8 @@ def test_push_payload_customer_stated_note(async_db, monkeypatch):
                                              e164="+256712345678")}})
     log = _dispatch(async_db, {"whatsapp": "0712345678"})
     p = log.request_payload
-    # 双钉: 与常量同源 + 字节级措辞(改常量必须联动,措辞本身不得漂移)
+    # 常量同源钉在本文件,字节级措辞钉在 test_lead_push_service.py /
+    # test_email_rendering.py(跨文件互补)
     assert p["profile"]["号码补全说明"] == f"0712345678→+256712345678{NOTE_UNCONFIRMED}"
     assert p["contact"]["whatsapp"] == "+256712345678"