refactor(restart): extract stale pid cleanup and supervisor markers

src/infra/process-respawn.ts

@@ -1,4 +1,5 @@
 import { spawn } from "node:child_process";
+import { hasSupervisorHint } from "./supervisor-markers.js";
 
 type RespawnMode = "spawned" | "supervised" | "disabled" | "failed";
 
@@ -8,24 +9,6 @@ export type GatewayRespawnResult = {
   detail?: string;
 };
 
-const SUPERVISOR_HINT_ENV_VARS = [
-  // macOS launchd — native env vars (may be set by launchd itself)
-  "LAUNCH_JOB_LABEL",
-  "LAUNCH_JOB_NAME",
-  // macOS launchd — OpenClaw's own plist generator sets these via
-  // buildServiceEnvironment() in service-env.ts. launchd does NOT
-  // automatically inject LAUNCH_JOB_LABEL into the child environment,
-  // so OPENCLAW_LAUNCHD_LABEL is the reliable supervised-mode signal.
-  "OPENCLAW_LAUNCHD_LABEL",
-  // Linux systemd
-  "INVOCATION_ID",
-  "SYSTEMD_EXEC_PID",
-  "JOURNAL_STREAM",
-  "OPENCLAW_SYSTEMD_UNIT",
-  // Generic service marker (set by both launchd and systemd plist/unit generators)
-  "OPENCLAW_SERVICE_MARKER",
-];
-
 function isTruthy(value: string | undefined): boolean {
   if (!value) {
     return false;
@@ -35,10 +18,7 @@ function isTruthy(value: string | undefined): boolean {
 }
 
 function isLikelySupervisedProcess(env: NodeJS.ProcessEnv = process.env): boolean {
-  return SUPERVISOR_HINT_ENV_VARS.some((key) => {
-    const value = env[key];
-    return typeof value === "string" && value.trim().length > 0;
-  });
+  return hasSupervisorHint(env);
 }
 
 /**