fix: add cross-day dedupe

tests/test_runner.py

@@ -3,6 +3,7 @@ import json
 from pathlib import Path
 from tempfile import TemporaryDirectory
 
+from ai_daily_report.publish import load_published_urls
 from ai_daily_report.runner import run_daily_report
 
 
@@ -127,6 +128,36 @@ class RunnerTests(unittest.TestCase):
         self.assertGreaterEqual(len(fake_client.prompts), 2)
         self.assertEqual(result["reports"]["stage8"]["status"], "ok")
 
+    def test_run_daily_report_publish_updates_published_url_history(self):
+        class FakeBlogClient:
+            def __init__(self, **kwargs):
+                self.kwargs = kwargs
+
+            def create_post(self, payload):
+                return {"slug": payload["slug"]}
+
+            def publish_post(self, slug):
+                self.slug = slug
+
+        with TemporaryDirectory() as temp_dir:
+            history_path = Path(temp_dir) / "published_urls.json"
+            result = run_daily_report(
+                run_date="2026-06-08",
+                mode="publish",
+                source_mode="mock",
+                llm_mode="mock",
+                out_dir=Path(temp_dir) / "out",
+                base_url="https://blog.example",
+                env={"BLOG_SERVICE_TOKEN": "token"},
+                blog_client_factory=FakeBlogClient,
+                history_path=history_path,
+            )
+            history = load_published_urls(history_path)
+
+        self.assertEqual(result["reports"]["stage8"]["status"], "ok")
+        self.assertIn("https://example.com/gpt5", history.urls)
+        self.assertEqual(history.urls["https://example.com/gpt5"].last_published, "2026-06-08")
+
 
 if __name__ == "__main__":
     unittest.main()