feat: add boot option for native runners in configuration example

runners.conf.example

@@ -46,6 +46,13 @@
 #   memory        — Docker memory limit (e.g. 2g, 512m). Ignored for native.
 #                   Empty = no limit.
 #
+#   boot          — enum: true, false (default: false). Native runners only.
+#                   "true" = install launchd plist to /Library/LaunchDaemons/
+#                   (starts at boot before login, requires sudo for install).
+#                   "false" = install to ~/Library/LaunchAgents/
+#                   (starts at login, no sudo needed).
+#                   Ignored for docker runners.
+#
 # STARTER ENTRIES (uncomment and edit):
 
 #[unraid-runner]
@@ -80,3 +87,4 @@
 #capacity      = 1
 #cpu           =
 #memory        =
+#boot          = false