fix(install): install root helpers after the repo copy, not before

initRootHelpers ran inside initUsers, before initGIT copies the repo into
/docker/install — so it read helper sources from a not-yet-populated
$script_dir/scripts/system and skipped all 7 ("Root helper source
missing"). This was masked on every prior install because the old
deploy's `rm -rf /docker` left /usr/local/lib/libreportal/ intact, so the
helpers were simply never reinstalled. A genuine clean install (now that
the deploy uses the full uninstall) exposed it: the runtime ended up with
only the CLI wrapper, the scoped sudoers pointed at missing helper paths,
and the WebUI never came up.

The helpers are only needed at runtime (the install phase uses the broad
install-phase sudo), and nothing between initUsers and initGIT uses them,
so move the call to right after initGIT (before initLibrePortalCommand,
which already installs the wrapper to the same dir post-copy).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>

init.sh

@@ -715,8 +715,6 @@ initUsers()
 		isError "Refusing to install an invalid sudoers drop-in for $sudo_user_name."
 	fi
 	rm -f "$sudoers_tmp"
-
-	initRootHelpers
 }
 
 # Tighten the manager's sudo from the install-phase NOPASSWD: ALL down to the
@@ -1423,6 +1421,7 @@ else
 		initUsers
 		initFolders
 		initGIT
+		initRootHelpers
 		initLibrePortalCommand
 		initUpdateConfigs
 		completeInitMessage