The reconciler's pre-start hooks for the btcpay stack, fedimint and fmcd
chowned unconditionally on EVERY prepare — and prepare re-runs far more
often than install (every reconcile that touches the app). archi-dev-box's
journal showed the same three dirs re-chowned every ~15s. The hooks exist
to repair old installs; they now skip when ownership is already correct
(root stat probe — the daemon's rootless metadata read can't see the
subuid-owned dirs).
Co-Authored-By: Claude <noreply@anthropic.com>
