Agent half of the verify-before-commit task (SPIKE-nas-verify-2026-07-11, b57f6c1):
retry=0 in the production NFS options (Q4-vi); ClassifyNetVerifyFailure on the live
Q4 strings (nfs_export merges not-found/not-permitted); add = sync fast-fail (2s TCP
pre-probe, nothing installed) + detached in-memory verify job judging /proc/mounts
only, auto-rollback on failure; GET /netstorage/verify-status (phase none = the
controller's Scenario-F rollback signal); unprivileged journalctl (systemd-journal
group, NO new sudoers grants).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PSK5g6qYLknKj8u3QAFEr6
