v4.8.0

What's Changed

• refactor: externalize afaudit and afissues packages to af-python repo (fixes #762)
• fix(test): update TestExitCodePreserved to reflect intentional #761 behavior (plan --json exits 0 on PlanError)

Package versions

Package	Version
agent-fox	4.8.0
af	4.8.0
agentfox	4.8.0
afaudit	1.0.0 (from af-python)
afissues	1.0.0 (from af-python)