docs: absorb documentation PR sweep

src/daemon/launchd.ts

@@ -418,6 +418,7 @@ function throwBootstrapGuiSessionError(params: {
       `LaunchAgent ${params.actionHint} requires a logged-in macOS GUI session for this user (${params.domain}).`,
       "This usually means you are running from SSH/headless context or as the wrong user (including sudo).",
       `Fix: sign in to the macOS desktop as the target user and rerun \`${params.actionHint}\`.`,
+      "For headless VM setups, enable auto-login for the target user so macOS creates the GUI session after boot.",
       "Headless deployments should use a dedicated logged-in user session or a custom LaunchDaemon (not shipped): https://docs.openclaw.ai/gateway",
     ].join("\n"),
   );