doctor: clean up legacy Linux gateway services (#21188)

* Doctor: clean up legacy Linux gateway services

* doctor: refactor legacy service cleanup flow

* doctor: fix legacy systemd cleanup map key typing

* doctor: add changelog entry for legacy Linux service cleanup

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Co-authored-by: Vincent Koc <vincentkoc@ieee.org>

CHANGELOG.md

@@ -627,6 +627,7 @@ Docs: https://docs.openclaw.ai
 - CLI/Doctor: ensure `openclaw doctor --fix --non-interactive --yes` exits promptly after completion so one-shot automation no longer hangs. (#18502)
 - CLI/Doctor: auto-repair `dmPolicy="open"` configs missing wildcard allowlists and write channel-correct repair paths (including `channels.googlechat.dm.allowFrom`) so `openclaw doctor --fix` no longer leaves Google Chat configs invalid after attempted repair. (#18544)
 - CLI/Doctor: detect gateway service token drift when the gateway token is only provided via environment variables, keeping service repairs aligned after token rotation.
+- CLI/Doctor: clean up legacy Linux gateway services (`clawdbot`/`moltbot`) during `doctor --fix`, while keeping non-legacy user/system services untouched. (#21063) Thanks @Phineas1500.
 - Gateway/Update: prevent restart crash loops after failed self-updates by restarting only on successful updates, stopping early on failed install/build steps, and running `openclaw doctor --fix` during updates to sanitize config. (#18131) Thanks @RamiNoodle733.
 - Gateway/Update: preserve update.run restart delivery context so post-update status replies route back to the initiating channel/thread. (#18267) Thanks @yinghaosang.
 - CLI/Update: run a standalone restart helper after updates, honoring service-name overrides and reporting restart initiation separately from confirmed restarts. (#18050)