{
"schema_version": "0.1-draft",
"purpose": "placeholder contract for future FIT-to-sidecar sync pipeline",
"fields_target": [
"power_w",
"speed_kmh",
"heart_rate_bpm",
"cadence_rpm",
"gps"
],
"sync_methods": [
"auto_timestamp_plus_offset",
"manual_offset_ms"
],
"notes": "Current release copies existing JSON sidecars only; FIT parsing is not implemented yet."
}