Agent Versioning

Every Finding carries agent_version — the exact semver of the agent module that produced it. Because Findings update in place, audit_trail[] records the version that wrote each update. If the reasoning improves after a rollback, the audit trail shows which version contributed which update.

Versioning does not prevent a flawed Finding from reaching an owner. It enables post-hoc identification of affected Findings, targeted re-runs of corrected reasoning, and owner communication where warranted.