feat: convert WordOps from Nginx to OpenLiteSpeed + LSPHP + LSCache

Complete conversion of the WordOps stack from Nginx + PHP-FPM to
OpenLiteSpeed + LSPHP + LSCache. This is a full rewrite across all 7
phases of the codebase:

- Foundation: OLS paths, variables, services, removed pynginxconfig dep
- Templates: 11 new OLS mustache templates, removed nginx-specific ones
- Stack: stack_pref, stack, stack_services, stack_upgrade, stack_migrate
- Site: site_functions, site, site_create, site_update
- Plugins: debug, info, log, clean rewritten for OLS
- SSL/ACME: acme.sh deploy uses lswsctrl, OLS vhssl blocks
- Other: secure, backup, clone, install script

Additional features:
- Debian 13 (trixie) support
- PHP 8.5 support
- WP Fort Knox mu-plugin integration (wo secure --lockdown/--unlock)
- --nginx CLI flag preserved for backward compatibility

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

wo/core/nginx.py

@@ -1,19 +1,2 @@
-"""WordOps Nginx Manager"""
-import subprocess
-
-from wo.core.logging import Log
-
-
-def check_config(self):
-    """Check Nginx configuration and return boolean"""
-    Log.debug(self, "Testing Nginx configuration ")
-    # Check Nginx configuration before executing command
-    sub = subprocess.Popen('nginx -t', stdout=subprocess.PIPE,
-                           stderr=subprocess.PIPE, shell=True)
-    output, error_output = sub.communicate()
-    if 'emerg' in str(error_output):
-        Log.debug(self, "Nginx configuration check failed")
-        return False
-    else:
-        Log.debug(self, "Nginx configuration check was successful")
-        return True
+"""WordOps Nginx compatibility module - redirects to OLS"""
+from wo.core.ols import check_config  # noqa: F401