RIvaldi

One row per player, game, team, and statistic group. Regular-season games at AA, High-A, and Single-A, subject to configured coverage. Source: MLB Stats API. Data is extracted from box-score stats, never seasonStats. Missing statistics are null. pitchingIPstr uses baseball notation; use pitchingouts for arithmetic. Files are grouped by season, historical league ID, and team ID. catalog.json maps IDs to names and table paths. The train split is a loading convention; no training/test split has been applied. state/index.json records season completion; partially backfilled seasons can be visible. state/SEASON.json records the games successfully stored. Current-season games are refreshed…