store_regression_report
Accepts release_state, rail_results, transcript_hashes, and regression_hash.
Store release reports, rail results, transcript hashes, callback events, credential events, and signing events under one release record.
Call store_regression_report after synthetic regression or external invocation tests.
Accepts release_state, rail_results, transcript_hashes, and regression_hash.
Returns recent reports from persistence when Supabase is configured, otherwise sandbox history.
SQL table added for release-level regression history.