Plan 17a §4 — append-only progress log. Mistakes corrected via voided_at/voided_by/void_reason — voided rows excluded from current-status derivation and trigger-driven writebacks. supersedes_event_fk optionally chains a corrective event to the voided one.
attachment_fk change_order_fk entered_at entered_by event_date event_type field_observed_at id notes project_asset_fk source supersedes_event_fk void_reason voided_at voided_by