fix: clean stale plugin channel config

docs/cli/doctor.md

@@ -44,6 +44,7 @@ Notes:
 - State integrity checks now detect orphan transcript files in the sessions directory and can archive them as `.deleted.<timestamp>` to reclaim space safely.
 - Doctor also scans `~/.openclaw/cron/jobs.json` (or `cron.store`) for legacy cron job shapes and can rewrite them in place before the scheduler has to auto-normalize them at runtime.
 - Doctor repairs missing bundled plugin runtime dependencies without writing into packaged global installs. For root-owned npm installs or hardened systemd units, set `OPENCLAW_PLUGIN_STAGE_DIR` to a writable directory such as `/var/lib/openclaw/plugin-runtime-deps`; it can also be a path-list such as `/opt/openclaw/plugin-runtime-deps:/var/lib/openclaw/plugin-runtime-deps`, where earlier roots are read-only lookup layers and the final root is the repair target.
+- Doctor repairs stale plugin config by removing missing plugin ids from `plugins.allow`/`plugins.entries`, plus matching dangling channel config, heartbeat targets, and channel model overrides when plugin discovery is healthy.
 - Set `OPENCLAW_SERVICE_REPAIR_POLICY=external` when another supervisor owns the gateway lifecycle. Doctor still reports gateway/service health and applies non-service repairs, but skips service install/start/restart/bootstrap and legacy service cleanup.
 - Doctor auto-migrates legacy flat Talk config (`talk.voiceId`, `talk.modelId`, and friends) into `talk.provider` + `talk.providers.<provider>`.
 - Repeat `doctor --fix` runs no longer report/apply Talk normalization when the only difference is object key order.