fix: update test limit to respect MAX_LIMIT=500 (#110)

Closes #110

The test was sending limit=999 which exceeds MAX_LIMIT (500), causing
FastAPI to return 422. Changed to limit=500, which is sufficient to
cover all seasons for any player.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/integration/test_stratplay_routes.py

@@ -569,7 +569,7 @@ class TestGroupBySbaPlayer:
         # Get per-season rows
         r_seasons = requests.get(
             f"{api}/api/v3/plays/batting",
-            params={"group_by": "player", "sbaplayer_id": 1, "limit": 999},
+            params={"group_by": "player", "sbaplayer_id": 1, "limit": 500},
             timeout=15,
         )
         assert r_seasons.status_code == 200