Implement fix for games that dont have week_number yet

src/stats.py

@@ -355,7 +355,12 @@ def get_yahoo_schedule() -> dict[int, dict[str, dict[str, str | int | pd.Timesta
             continue
         away_team = team_id_to_abbr[game["away_team_id"]]
         home_team = team_id_to_abbr[game["home_team_id"]]
+
+        if "week_number" not in game:
+            continue
+
         week = YAHOO_WEEK_MAP[int(game["week_number"])]
+
         if week not in schedule_map:
             schedule_map[week] = {}