Major performance and storage improvements

- live-attack-monitor.sh: Remove snapshot loading, fix Apache log monitoring, add IP file sync for auto-blocking
- bot-analyzer.sh:
  * Implement gzip compression for large temp files (10-20x space savings)
  * Move temp files from /tmp to toolkit/tmp directory
  * Prevents filling up system /tmp on large servers
- run.sh: Add HISTFILE fallback to prevent crashes when sourced
- user-manager.sh:
  * Initialize TEMP_SESSION_DIR to fix user indexing errors
  * Remove unnecessary temp file I/O for faster user indexing

lib/user-manager.sh

@@ -192,7 +192,7 @@ get_interworx_user_info() {
     local email=""
     if [ -x "/usr/local/interworx/bin/nodeworx.pex" ] && [ -n "$primary_domain" ]; then
         email=$(nodeworx -u -n -c Siteworx -a listAccounts 2>/dev/null | \
-            grep -F "\"domain\" => \"$primary_domain\"" 2>/dev/null | head -1 | \
+            grep "\"domain\" => \"$primary_domain\"" 2>/dev/null | head -1 | \
             grep "\"email\"" 2>/dev/null | head -1 | sed 's/.*=> "\(.*\)".*/\1/')
     fi
 
@@ -251,11 +251,11 @@ get_cpanel_user_domains() {
     local username="$1"
 
     # Primary domain (format: domain: user)
-    grep -F ": ${username}" /etc/trueuserdomains 2>/dev/null | grep "${username}$" 2>/dev/null | cut -d: -f1 || true
+    grep ": ${username}$" /etc/trueuserdomains 2>/dev/null | cut -d: -f1 || true
 
     # Addon domains
     if [ -f "/etc/userdatadomains" ]; then
-        grep -F "==${username}" /etc/userdatadomains 2>/dev/null | grep "${username}$" 2>/dev/null | cut -d: -f1 || true
+        grep "==${username}$" /etc/userdatadomains 2>/dev/null | cut -d: -f1 || true
     fi
 }
 
@@ -314,7 +314,7 @@ get_cpanel_user_databases() {
     local username="$1"
 
     # cPanel databases typically follow pattern: username_dbname
-    mysql -e "SHOW DATABASES" 2>/dev/null | grep -F "${username}_" 2>/dev/null || true
+    mysql -e "SHOW DATABASES" 2>/dev/null | grep "^${username}_" 2>/dev/null || true
 }
 
 get_plesk_user_databases() {
@@ -398,7 +398,7 @@ select_user_interactive() {
     local users=($(list_all_users))
     local total_users=${#users[@]}
 
-    if [ $total_users -eq 0 ]; then
+    if [ "${total_users:-0}" -eq 0 ]; then
         print_error "No users found" >&2
         return 1
     fi
@@ -427,7 +427,7 @@ select_user_interactive() {
         echo "-------------------------------------------------------------------------------"
 
         # Auto-show list if 10 or fewer users
-        if [ $total_users -le 10 ]; then
+        if [ "${total_users:-0}" -le 10 ]; then
             echo ""
             for user in "${users[@]}"; do
                 echo -e "  ${GREEN}$user${NC} - ${user_primary_domain[$user]} (${user_domain_count[$user]} domains)"
@@ -438,7 +438,7 @@ select_user_interactive() {
         echo "-------------------------------------------------------------------------------"
         echo ""
         echo "Options:"
-        if [ $total_users -gt 10 ]; then
+        if [ "${total_users:-0}" -gt 10 ]; then
             echo "  L         - List all $total_users users"
         fi
         echo "  S [text]  - Search/filter users (e.g., 's pick' or 's example.com')"
@@ -565,7 +565,7 @@ select_user_interactive() {
 
             # Not exact match
             print_error "User '$choice' not found" >&2
-            if [ $total_users -gt 10 ]; then
+            if [ "${total_users:-0}" -gt 10 ]; then
                 echo "  Tip: Type 'L' to list all users" >&2
             fi
             return 1
@@ -580,14 +580,14 @@ select_user_interactive() {
 get_user_processes() {
     local username="$1"
 
-    ps aux | grep -F "$username" 2>/dev/null | grep -v grep
+    ps aux | grep "$username" 2>/dev/null | grep -v grep
 }
 
 get_user_top_processes() {
     local username="$1"
     local limit="${2:-10}"
 
-    ps aux | grep -F "$username" 2>/dev/null | grep -v grep | sort -k3 -rn | head -n "$limit"
+    ps aux | grep "$username" 2>/dev/null | grep -v grep | sort -k3 -rn | head -n "$limit"
 }
 
 #############################################################################