fix: safeguard empty array iterations for bash 3.2 compatibility

lib/clean/apps.sh

@@ -135,9 +135,11 @@ scan_installed_apps() {
     ) &
     pids+=($!)
     debug_log "Waiting for ${#pids[@]} background processes: ${pids[*]}"
+    if [[ ${#pids[@]} -gt 0 ]]; then
         for pid in "${pids[@]}"; do
             wait "$pid" 2> /dev/null || true
         done
+    fi
     debug_log "All background processes completed"
     cat "$scan_tmp_dir"/*.txt >> "$installed_bundles" 2> /dev/null || true
     safe_remove "$scan_tmp_dir" true
@@ -279,6 +281,7 @@ clean_orphaned_app_data() {
         for pat in "${pattern_arr[@]}"; do
             file_patterns+=("$base_path/$pat")
         done
+        if [[ ${#file_patterns[@]} -gt 0 ]]; then
             for item_path in "${file_patterns[@]}"; do
                 local iteration_count=0
             for match in $item_path; do
@@ -302,6 +305,7 @@ clean_orphaned_app_data() {
                 fi
             done
             done
+        fi
     done
     stop_section_spinner
     if [[ $orphaned_count -gt 0 ]]; then

lib/manage/whitelist.sh

@@ -248,6 +248,7 @@ is_whitelisted() {
         return 1
     fi
 
+    if [[ ${#CURRENT_WHITELIST_PATTERNS[@]} -gt 0 ]]; then
         for existing in "${CURRENT_WHITELIST_PATTERNS[@]}"; do
             local existing_expanded="${existing/#\~/$HOME}"
             # Only use exact string match to prevent glob expansion security issues
@@ -255,6 +256,7 @@ is_whitelisted() {
                 return 0
             fi
         done
+    fi
     return 1
 }