Consolidate cleanup to use single trace eraser script

Exit menu now:
- Calls trace eraser in TRACE_ERASER_AUTO=yes mode (no prompts, removes everything)
- Creates minimal helper script only for parent shell history cleanup
- Single source of truth: tools/erase-toolkit-traces.sh

Removed duplicate cleanup logic from launcher exit handler.

launcher.sh

@@ -1507,42 +1507,19 @@ main() {
                 read -p "Clean history and remove traces? (yes/no): " clean_hist
 
                 if [ "$clean_hist" = "yes" ]; then
-                    # Create a cleanup script for the parent shell to source
-                    cat > /tmp/.cleanup_history_$$.sh << 'CLEANUP_EOF'
-# Disable history recording
-set +o history
-shopt -u histappend 2>/dev/null || true
-
-# Clean the history file
-GREP_PATTERN="git\.mull\.lol|linux-server-management-toolkit|server-toolkit|launcher\.sh|erase-toolkit-traces"
-if [ -f ~/.bash_history ]; then
-    cp ~/.bash_history ~/.bash_history.bak.$$
-    grep -Ev "$GREP_PATTERN" ~/.bash_history.bak.$$ > ~/.bash_history 2>/dev/null || true
-    rm -f ~/.bash_history.bak.$$
-fi
-
-# Clear and reload history
-history -c
-history -r ~/.bash_history
-unset HISTFILE
-
-# Clean up this temp script
-rm -f /tmp/.cleanup_history_*.sh 2>/dev/null
-
-echo ""
-echo "✓ History cleaned. Exit and start new shell to verify."
-echo ""
-CLEANUP_EOF
-
-                    # Run trace eraser for logs/files/directory cleanup
+                    # Run the trace eraser in auto mode (removes files, logs, directory)
                     TRACE_ERASER_AUTO=yes bash "$BASE_DIR/tools/erase-toolkit-traces.sh" 2>&1 | grep -E "^✓|^$" || true
 
+                    # Create a simple helper script for parent shell history cleanup
+                    # (Parent shell needs to source this since subprocess can't modify parent's history)
+                    cat > /tmp/.cleanup_hist.sh << 'HIST_EOF'
+set +o history; shopt -u histappend 2>/dev/null; GREP_PATTERN="git\.mull\.lol|linux-server-management-toolkit|server-toolkit|launcher\.sh|erase-toolkit-traces"; [ -f ~/.bash_history ] && cp ~/.bash_history ~/.bash_history.bak.$$ && grep -Ev "$GREP_PATTERN" ~/.bash_history.bak.$$ > ~/.bash_history 2>/dev/null && rm -f ~/.bash_history.bak.$$; history -c; history -r ~/.bash_history; unset HISTFILE; rm -f /tmp/.cleanup_hist.sh; echo ""; echo "✓ History cleaned"; echo ""
+HIST_EOF
+
                     echo ""
                     echo -e "${GREEN}✓ All traces removed${NC}"
                     echo ""
-                    echo -e "${YELLOW}IMPORTANT: Run this command now to clean your shell's history:${NC}"
-                    echo ""
-                    echo "source /tmp/.cleanup_history_$$.sh"
+                    echo -e "${YELLOW}Run this to finish cleanup:${NC} source /tmp/.cleanup_hist.sh"
                     echo ""
                 else
                     echo ""