Import formations from a snap chart

Chart workbook (.xlsx, sheet "Chart")

Per-player alignment (.json, playforge-formations/v1)

Team

Season

One card per call: a look charted Lt joins the Rt card of the same name, drawn mirrored

The workbook is the snap record (down, distance, result, notes). The JSON adds exact per-player alignment, joined on Play ID. Snaps without per-player data are drawn from a template keyed on personnel + family + backfield + strength (the most common alignment seen on film for that key, else a default shape) and tagged "template, verify". Importing the same files again merges; it never duplicates.