Fix all remaining hardcoded /var/cpanel paths in wordpress-cron-manager

FIXES:
wordpress-cron-manager.sh:
- Lines 591, 722: Added userdata_base variable and replaced hardcoded paths (2 instances)
- Lines 604, 735: Used $userdata_base for wildcard paths (2 instances)

Total fixes in this file: 4 more instances
Now using ${SYS_CPANEL_USERDATA_DIR:-/var/cpanel/userdata} consistently throughout

MILESTONE:
🎉 ALL MEDIUM ISSUES NOW RESOLVED! 🎉

QA STATUS:
- CRITICAL: 0 ✓
- HIGH: 0 ✓
- MEDIUM: 0 ✓
- LOW: 11 (final batch)

Total issues remaining: 11 (all LOW priority)

modules/website/wordpress/wordpress-cron-manager.sh

@@ -588,7 +588,8 @@ case "$choice" in
             wp_config=""
 
             # Method 1: Check main_domain in main files
-            for userdata_file in /var/cpanel/userdata/*/main; do
+            local userdata_base="${SYS_CPANEL_USERDATA_DIR:-/var/cpanel/userdata}"
+            for userdata_file in "$userdata_base"/*/main; do
                 if grep -q "^main_domain: $domain" "$userdata_file" 2>/dev/null; then
                     user=$(basename "$(dirname "$userdata_file")")
                     potential_config="/home/$user/public_html/wp-config.php"
@@ -601,7 +602,7 @@ case "$choice" in
 
             # Method 2: Search domain-specific files for servername
             if [ -z "$wp_config" ]; then
-                for userdata_file in /var/cpanel/userdata/*/*; do
+                for userdata_file in "$userdata_base"/*/*; do
                     [[ "$userdata_file" == *.cache ]] && continue
                     [[ "$userdata_file" == */main ]] && continue
                     [[ "$userdata_file" == */cache ]] && continue