Fix: Double arithmetic syntax error in generate_comparison_report (line 2073)

run.sh

@@ -10,14 +10,22 @@ set -o pipefail
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 CLEANUP_FLAG="/tmp/.cleanup_requested"
 
-# Save original history setting to restore even if interrupted
-HISTORY_SETTING=$(set +o | grep history)
+# Save original history state to restore even if interrupted
+HISTORY_STATE="off"
+if set -o | grep -q "^set +o history" 2>/dev/null; then
+    HISTORY_STATE="on"
+fi
 RESTORE_HISTORY=false
 
 # Cleanup function: restore history even on error/interrupt
 cleanup_on_exit() {
-    if [ "$RESTORE_HISTORY" = true ]; then
-        eval "$HISTORY_SETTING" 2>/dev/null || true
+    if [ "$RESTORE_HISTORY" = true ] && [ -n "$HISTORY_STATE" ]; then
+        set +H  # Disable history expansion temporarily
+        if [ "$HISTORY_STATE" = "on" ]; then
+            set -o history
+        else
+            set +o history
+        fi
     fi
 }
 
@@ -59,7 +67,11 @@ source "$SCRIPT_DIR/launcher.sh"
 LAUNCHER_EXIT=$?
 
 # Re-enable history (trap will also do this)
-eval "$HISTORY_SETTING" 2>/dev/null || true
+if [ "$HISTORY_STATE" = "on" ]; then
+    set -o history 2>/dev/null || true
+else
+    set +o history 2>/dev/null || true
+fi
 RESTORE_HISTORY=false
 
 # Handle cleanup request (if user selected "Clean and remove traces")