feat: add Object.freeze monkeypatcher fn

src/deep-freeze.ts

@@ -0,0 +1,19 @@
+const originalFreeze = Object.freeze;
+const originalSeal = Object.seal;
+
+/**
+ * Recursively freezes and seals an object and all its nested properties.
+ * @param obj The object to freeze and seal.
+ * @returns The frozen and sealed object.
+ */
+function deepFreezeAndSeal<T extends Record<string, any>>(obj: T): Readonly<T> {
+	Object.getOwnPropertyNames(obj).forEach((prop) => {
+		const value = obj[prop];
+		if (value && typeof value === 'object') deepFreezeAndSeal(value);
+	});
+
+	originalSeal(obj);
+	return originalFreeze(obj);
+}
+
+Object.freeze = deepFreezeAndSeal;

src/routes/+layout.ts

@@ -1,3 +1,4 @@
 import '../app.css';
+import '../deep-freeze';
 
 export const prerender = true;