Fix table assertion after inline-style change

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

tests/test_blogger.py

@@ -122,7 +122,7 @@ def test_deliver_refreshes_token_lists_then_inserts():
     assert insert_call["headers"]["Authorization"] == "Bearer at-1"
     body = insert_call["json"]
     assert body["title"].startswith("미국 마감 브리핑 2026-09-01")
-    assert body["labels"] == ["미국증시"] and "<table>" in body["content"]
+    assert body["labels"] == ["미국증시"] and "<table style=" in body["content"]
 
 
 def test_deliver_updates_existing_post_for_same_day():