sys-daemon & sys-service: align timeout handling

- Updated sys-daemon defaults:
  * Increased SYSTEMD_DEFAULT_TIMEOUT_START to 24h
  * Improved inline comments for clarity
- Changed sys-service vars:
  * Removed hardcoded 60s TimeoutStartSec
  * Now empty by default → inherits manager defaults from sys-daemon

See: https://chatgpt.com/share/68ade432-67f8-800f-b6c2-b8f87764479b

roles/sys-service/tasks/01_core.yml

@@ -1,6 +1,7 @@
 - name: Include dependency 'sys-daemon'
   include_role:
     name: sys-daemon
+    public: true
   when: run_once_sys_daemon is not defined
   
 - name: "reset (if enabled)"