chore: add npm update script for managing project dependencies

scripts/npm_update.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+# This script updates npm dependencies for the project.
+
+cd /projects/Charon || exit
+
+echo "Updating root npm dependencies..."
+
+npm update
+npm dedup
+npm audit --audit-level=high
+npm audit fix
+npm outdated
+npm install
+
+echo "Root npm dependencies updated successfully."
+
+cd /projects/Charon/frontend || exit
+
+echo "Updating frontend npm dependencies..."
+
+npm update
+npm dedup
+npm audit --audit-level=high
+npm audit fix
+npm outdated
+npm install
+
+echo "Frontend npm dependencies updated successfully."