修正北京时间并更换新闻候选源

tests/test_news_search_client.py

@@ -5,18 +5,22 @@ from app.integrations.news_search_client import NewsSearchClient
 def test_news_search_client_maps_article_to_candidate() -> None:
     # 新闻搜索结果会先转为候选信号，再交给模型筛选成最终情报。
     client = NewsSearchClient(Settings())
-    signal = client._article_to_signal(
+    signal = client._story_to_signal(
         {
-            "title": "AI agent platform launches",
+            "title": "Show HN: AI agent platform launches",
             "url": "https://example.com/ai-agent-platform",
-            "domain": "example.com",
-            "sourcecountry": "US",
-            "seendate": "20260708T120000Z",
+            "author": "builder",
+            "points": 128,
+            "num_comments": 24,
+            "created_at": "2026-07-08T12:00:00Z",
+            "objectID": "123",
         }
     )
 
     assert signal is not None
     assert signal.topic == "AI 新闻候选"
-    assert signal.source_name == "example.com"
+    assert signal.source_name == "Hacker News"
     assert signal.published_at is not None
     assert signal.published_at.year == 2026
+    assert signal.published_at.hour == 20
+    assert "128 points" in signal.summary