fix: restore missing subject arg in MokoRestore str_replace (standalone gen)

MokoRestore::generateStandaloneScript() rewrites the 'Backup Archive'
pre-check via str_replace(ORIG, REPL) but was missing the third
$php subject argument, so every standalone-mode backup fatally errored
with 'str_replace() expects at least 3 arguments, 2 given' at the
'Generating standalone restore.php...' step. The archive still finalized
and uploaded, but no restore.php was produced -- the underlying cause of
#226 (restore script missing on the remote).

Refs #226

Claude-Session: https://claude.ai/code/session_01WbGBN9VyRK61zczYWcCQ2i

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## [Unreleased]
 
 ### Fixed
+- Standalone restore script generation no longer aborts backups with `str_replace() expects at least 3 arguments, 2 given`. `MokoRestore::generateStandaloneScript()` had a `str_replace()` call (the "Backup Archive" pre-check rewrite) that was missing its `$php` subject argument, so **every** standalone-mode backup fatally errored while "Generating standalone restore.php…" — the archive still finalized and uploaded, but no `restore.php` was ever produced (the true root cause behind #226). (#226)
 - Remote upload: the standalone restore script upload is no longer silent — its result is now checked and logged, and a failed restore-script upload marks the backup as `warning` (previously the result was discarded, so a missing restore script on the remote went unreported while the archive still showed success). (#226)
 
 ## [02.58.00] --- 2026-07-06

source/packages/com_mokosuitebackup/src/Engine/MokoRestore.php

@@ -204,7 +204,8 @@ ORIG,
         'ok'    => $backupCount > 0,
         'hint'  => 'Place one or more backup ZIP files in the same directory as ' . basename($_SERVER['SCRIPT_NAME']),
     ];
-REPL
+REPL,
+			$php
 		);
 
 		/* Modify remaining pre-checks to use getSelectedBackupFile() */