Add the `autoUpdateAndRestart` global setting (default off, Settings ->
General next to Release channel). When enabled, the dashboard host installs
available updates on the selected channel by itself and requests the
supervised in-place restart. Supervised hosts only: without a parent to
respawn, installing would leave a running process whose code no longer
matches its own install.
Fix two ways the restart affordance could silently do nothing:
- The supervisor now stamps FUSION_SUPERVISOR_PID and supervision is only
counted when that pid is the real parent. FUSION_RESTART_SUPERVISED is
inherited by every process Fusion spawns, so `fn dashboard` launched from
an agent terminal skipped its own supervisor while still advertising
restart support -- a restart request then killed it for good.
- Settings and the update banner probe /system/info on mount and treat
capability as advisory: the button always issues the request and shows the
server's actual refusal instead of sitting disabled after a failed probe.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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