PR Template - Sprint 20 Task 04

Task

Implement break-glass workflow with irreversible audit flag.

Summary

• Added break-glass token issuance and irreversible audit record semantics.

Scope

• src/pkg/security/high_assurance.py
• tests/unit/test_high_assurance_security.py

Validation

• PYTHONPATH=src .venv/bin/pytest -q tests/unit/test_high_assurance_security.py -k break_glass