fix: use browser User-Agent for RSS feeds blocked by InfoQ

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/test_rss_parse.py

@@ -23,6 +23,12 @@ def test_parse_sample_rss_fixture():
     assert "minimal RSS item" in items[0]["summary"]
 
 
+def test_rss_user_agent_avoids_bot_blocked_feeds():
+    from daily.news.fetch import RSS_USER_AGENT
+
+    assert "daily-robots" not in RSS_USER_AGENT
+
+
 def test_fetch_ai_news_offline(monkeypatch):
     from daily.news import fetch as news_fetch