Fix HIGH priority issues: paths, globs, deps, wordsplit

- Fixed 3 unquoted path expansions in cleanup-toolkit-data.sh
  (lines 175, 192-193: quoted $pattern in ls/rm commands)

- Fixed 3 unquoted globs in erase/malware-scanner scripts
  (erase-toolkit-traces.sh lines 103-104, malware-scanner.sh line 229)

- Added system-detect.sh sourcing to email-functions.sh
  (fixes 5 HIGH priority DEP warnings for detect_control_panel)

- Fixed 2 WORDSPLIT issues in mysql-analyzer.sh
  (lines 137, 362: changed from for loops to while read loops
   to safely handle database/table names with spaces)

lib/mysql-analyzer.sh

@@ -133,9 +133,8 @@ map_database_to_user_domain() {
     # Build map for all databases
     print_info "Building database to user/domain mapping..."
 
-    local all_dbs=$(mysql -Ns -e "SHOW DATABASES" 2>/dev/null | grep -v "^information_schema$\|^mysql$\|^performance_schema$\|^sys$")
-
-    for db in $all_dbs; do
+    # Use while read to safely iterate over database names (handles spaces in names)
+    mysql -Ns -e "SHOW DATABASES" 2>/dev/null | grep -v "^information_schema$\|^mysql$\|^performance_schema$\|^sys$" | while IFS= read -r db; do
         # Extract potential username from database name
         # Format: username_dbname
         local potential_user=$(echo "$db" | cut -d_ -f1)
@@ -359,11 +358,10 @@ analyze_queries_for_problems() {
         # Extract database
         local db_name=$(extract_database_from_query "$query")
 
-        # Extract tables
-        local tables=$(extract_tables_from_query "$query")
+        # Extract tables and safely iterate (handles spaces in table names)
+        extract_tables_from_query "$query" | while IFS= read -r table; do
+            [ -z "$table" ] && continue  # Skip empty lines
 
-        # Identify plugins
-        for table in $tables; do
             local plugin=$(identify_plugin_from_table "$table")
             local owner=$(get_database_owner "$db_name")
             local domain=$(get_database_domain "$db_name")