Add --permission-audit flag that enables the permission model in
warning-only mode. Instead of throwing ERR_ACCESS_DENIED, it emits
a message via diagnostics channel and allows the operation to
continue.
Publish permission check results to per-scope diagnostics channels
(e.g., node:permission-model:fs) so users can observe permission
decisions at runtime via diagnostics_channel.
Refs: https://github.com/nodejs/node/issues/59935
PR-URL: https://github.com/nodejs/node/pull/61869
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>