Tamper-evident audit trail for AI coding agent activity

The Tamper-evident audit trail plugin for Openclaw records every AI coding agent session, tool invocation, and prompt exchange into a local SQLite database, secured by a SHA-256 hash chain to detect any post-fact alteration or deletion. It is designed for security-conscious developers and organizations that need verifiable, non-repudiable logs of AI agent activity for compliance, forensics, or trust verification. This is interesting because it brings blockchain-style integrity to AI development workflows, enabling provable accountability without relying on external services.