feat(app): add serverUtils, create hashObj util

src/lib/serverUtils.ts

@@ -0,0 +1,7 @@
+import crypto from 'crypto';
+
+export const hashObj = (obj: { [key: string]: any }) => {
+  const json = JSON.stringify(obj, Object.keys(obj).sort());
+  const hash = crypto.createHash('sha256').update(json).digest('hex');
+  return hash;
+};