Sol review (org-redact5, changes 6):
- org-service: Node filesystem errors become "cannot <syscall> <label> (<CODE>)";
code, syscall, deleteStep and deleteReceipt stay. git failures name the verb
and exit code, never git's stderr.
- org-console: consoleStop names "another checkout", not the entry path. Exit 3.
- config-command: the system config is named by where it came from. Exit 3.
- cli org: documents and raw fs errors are named by kind and code. Exit 2.
- instances: --vars file named by flag and kind. Exit 4.
- hosts: a refused command is named by the basename refusedCommand matched.
- role.mjs (T1): the change is back to the readJsonFile label only.
Sentinel tests for each; pins in last-values, rename-b-commands, org-recovery.