优化情报分栏和日报展示

tests/test_grok_client.py

@@ -10,10 +10,13 @@ class StubGrokClient(GrokIntelligenceClient):
     def _chat_json(self, messages):
         # 测试只验证提示词输入和结果契约，不访问真实模型服务。
         assert "github_candidates" in messages[1]["content"]
+        assert '"source_type": "news"' in messages[1]["content"]
+        assert '"source_type": "github"' in messages[1]["content"]
         return {
             "title": "AI 情报日报 2026-07-08",
             "signals": [
                 {
+                    "source_type": "github",
                     "topic": "GitHub 热门项目",
                     "title": "example/agent-kit",
                     "summary": "该项目提供生产级 Agent 工作流能力。",
@@ -43,6 +46,7 @@ def test_grok_client_returns_agent_result() -> None:
         ],
         news_candidates=[
             SignalItem(
+                source_type="news",
                 topic="AI 新闻候选",
                 title="New model release",
                 summary="News candidate from example.com.",
@@ -55,6 +59,7 @@ def test_grok_client_returns_agent_result() -> None:
         ],
         github_projects=[
             SignalItem(
+                source_type="github",
                 topic="GitHub 热门项目",
                 title="example/agent-kit",
                 summary="Agent framework.",
@@ -69,5 +74,6 @@ def test_grok_client_returns_agent_result() -> None:
     )
 
     assert result.title == "AI 情报日报 2026-07-08"
+    assert result.signals[0].source_type == "github"
     assert result.signals[0].source_name == "GitHub"
     assert result.report_markdown.startswith("# AI 情报日报")