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792ce7b5b4
restartGatewayProcessWithFreshPid() checks SUPERVISOR_HINT_ENV_VARS to decide whether to let the supervisor handle the restart (mode=supervised) or to fork a detached child (mode=spawned). The existing list only had native launchd vars (LAUNCH_JOB_LABEL, LAUNCH_JOB_NAME) and systemd vars (INVOCATION_ID, SYSTEMD_EXEC_PID, JOURNAL_STREAM). macOS launchd does NOT automatically inject LAUNCH_JOB_LABEL into the child environment. OpenClaw's own plist generator (buildServiceEnvironment in service-env.ts) sets OPENCLAW_LAUNCHD_LABEL instead. So on stock macOS LaunchAgent installs, isLikelySupervisedProcess() returned false, causing the gateway to fork a detached child on SIGUSR1 restart. The original process then exits, launchd sees its child died, respawns a new instance which finds the orphan holding the port — infinite crash loop. Fix: add OPENCLAW_LAUNCHD_LABEL, OPENCLAW_SYSTEMD_UNIT, and OPENCLAW_SERVICE_MARKER to the supervisor hint list. These are set by OpenClaw's own service environment builders for both launchd and systemd and are the reliable supervised-mode signals. Fixes #27605