fix: 修复报告摘要生成并稳定默认端口

tests/unit/test_douyin_mapping.py

@@ -118,3 +118,39 @@ def test_douyin_maps_null_comments_as_empty_list():
     payload = {"data": {"comments": None}}
 
     assert platform.map_comments(payload, limit=10) == []
+
+
+class RecordingDouyinClient:
+    def __init__(self):
+        self.requests = []
+
+    def get(self, path, *, params=None):
+        self.requests.append((path, params))
+        cursor = params["cursor"]
+        if cursor == 0:
+            return {
+                "data": {
+                    "comments": [{"cid": f"c-{index}", "text": f"评论 {index}"} for index in range(20)],
+                    "cursor": 20,
+                    "has_more": 1,
+                }
+            }
+        return {
+            "data": {
+                "comments": [{"cid": f"c-{index}", "text": f"评论 {index}"} for index in range(20, 55)],
+                "cursor": 55,
+                "has_more": 0,
+            }
+        }
+
+
+def test_douyin_fetch_comments_paginates_until_limit():
+    client = RecordingDouyinClient()
+    platform = DouyinPlatform(client=client)
+
+    comments = platform.fetch_comments("aweme-1", limit=50)
+
+    assert len(comments) == 50
+    assert comments[0].source_comment_id == "c-0"
+    assert comments[-1].source_comment_id == "c-49"
+    assert [request[1]["cursor"] for request in client.requests] == [0, 20]