Index: node_modules/es-toolkit/dist/object/mergeWith.mjs
===================================================================
--- node_modules/es-toolkit/dist/object/mergeWith.mjs	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
+++ node_modules/es-toolkit/dist/object/mergeWith.mjs	(revision a762898ecd37a452c782821d4c2c4955c6ed2521)
@@ -0,0 +1,40 @@
+import { isUnsafeProperty } from '../_internal/isUnsafeProperty.mjs';
+import { isPlainObject } from '../predicate/isPlainObject.mjs';
+
+function mergeWith(target, source, merge) {
+    const sourceKeys = Object.keys(source);
+    for (let i = 0; i < sourceKeys.length; i++) {
+        const key = sourceKeys[i];
+        if (isUnsafeProperty(key)) {
+            continue;
+        }
+        const sourceValue = source[key];
+        const targetValue = target[key];
+        const merged = merge(targetValue, sourceValue, key, target, source);
+        if (merged !== undefined) {
+            target[key] = merged;
+        }
+        else if (Array.isArray(sourceValue)) {
+            if (Array.isArray(targetValue)) {
+                target[key] = mergeWith(targetValue, sourceValue, merge);
+            }
+            else {
+                target[key] = mergeWith([], sourceValue, merge);
+            }
+        }
+        else if (isPlainObject(sourceValue)) {
+            if (isPlainObject(targetValue)) {
+                target[key] = mergeWith(targetValue, sourceValue, merge);
+            }
+            else {
+                target[key] = mergeWith({}, sourceValue, merge);
+            }
+        }
+        else if (targetValue === undefined || sourceValue !== undefined) {
+            target[key] = sourceValue;
+        }
+    }
+    return target;
+}
+
+export { mergeWith };