---
id: task-15
title: Add change tracking with audit trail
status: Done
assignee: []
created_date: '2025-12-04 02:00'
updated_date: '2025-12-04 02:23'
labels:
  - feature
  - stage-7
  - stage-8
  - compliance
dependencies:
  - task-1
priority: medium
---

## Description

<!-- SECTION:DESCRIPTION:BEGIN -->
Track all human edits with timestamps and attribution. Store in audit_log.json: who changed what, when, previous value, new value. Essential for registry compliance and review transparency.
<!-- SECTION:DESCRIPTION:END -->
