- jail_service.restart(): replace invalid ["restart"] socket command with
["stop"], matching fail2ban transmitter protocol. The daemon is now
stopped via socket; the caller starts it via subprocess.
- config_file_service: expose _start_daemon and _wait_for_fail2ban as
public start_daemon / wait_for_fail2ban functions.
- restart_fail2ban router: orchestrate stop (socket) → start (subprocess)
→ probe (socket). Returns 204 on success, 503 when fail2ban does not
come back within 10 s. Catches JailOperationError → 409.
- reload_fail2ban router: add JailOperationError catch → 409 Conflict,
consistent with other jail control endpoints.
- Tests: add TestJailControls.test_restart_* (3 cases), TestReloadFail2ban
502/409 cases, TestRestartFail2ban (5 cases), TestRollbackJail (6
integration tests verifying file-write, subprocess invocation, socket-
probe truthiness, active_jails count, and offline-at-call-time).
Lukas
93dc699825