docs(toCamelCaseKeys): document uppercase and PascalCase key conversion

Author: Yeom-JinHo

docs/ja/reference/object/toCamelCaseKeys.md

@@ -12,7 +12,11 @@ const camelCased = toCamelCaseKeys(obj);
 
 ### `toCamelCaseKeys(obj)`
 
-オブジェクトのすべてのキーをキャメルケースに変換したい時に`toCamelCaseKeys`を使用してください。ネストされたオブジェクトと配列内のオブジェクトも再帰的に変換されます。
+オブジェクトのすべてのキーをキャメルケースに変換したい時に `toCamelCaseKeys` を使用してください。ネストされたオブジェクトと配列内のオブジェクトも再帰的に変換されます。
+
+- `snake_case` → `camelCase`（例: `user_id` → `userId`）
+- `PascalCase` → `camelCase`（例: `UserId` → `userId`）
+- `ALL_CAPS` → `camelCase`（例: `FIRST_NAME` → `firstName`, `LAST` → `last`）
 
 ```typescript
 import { toCamelCaseKeys } from 'es-toolkit/object';
@@ -50,6 +54,11 @@ const nestedResult = toCamelCaseKeys(nested);
 //     }
 //   }
 // }になります
+
+// PascalCase と ALL_CAPS のキーも変換されます
+const raw = { UserId: 1, FIRST_NAME: 'JinHo', LAST: 'Yeom' };
+const converted = toCamelCaseKeys(raw);
+// converted は { userId: 1, firstName: 'JinHo', last: 'Yeom' } になります
 ```
 
 #### パラメータ

docs/ko/reference/object/toCamelCaseKeys.md

@@ -14,6 +14,10 @@ const camelCased = toCamelCaseKeys(obj);
 
 객체의 모든 키를 카멜 케이스로 변환하고 싶을 때 `toCamelCaseKeys`를 사용하세요. 중첩된 객체와 배열 내의 객체들도 재귀적으로 변환돼요.
 
+- `snake_case` → `camelCase` (예: `user_id` → `userId`)
+- `PascalCase` → `camelCase` (예: `UserId` → `userId`)
+- `ALL_CAPS` → `camelCase` (예: `FIRST_NAME` → `firstName`, `LAST` → `last`)
+
 ```typescript
 import { toCamelCaseKeys } from 'es-toolkit/object';
 
@@ -50,6 +54,11 @@ const nestedResult = toCamelCaseKeys(nested);
 //     }
 //   }
 // }가 돼요
+
+// PascalCase와 ALL_CAPS 키도 변환돼요
+const raw = { UserId: 1, FIRST_NAME: 'JinHo', LAST: 'Yeom' };
+const converted = toCamelCaseKeys(raw);
+// converted는 { userId: 1, firstName: 'JinHo', last: 'Yeom' }가 돼요
 ```
 
 #### 파라미터

docs/reference/object/toCamelCaseKeys.md

@@ -14,6 +14,10 @@ const camelCased = toCamelCaseKeys(obj);
 
 Use `toCamelCaseKeys` when you want to convert all keys of an object to camel case. Nested objects and objects within arrays are also converted recursively.
 
+- `snake_case` → `camelCase` (e.g. `user_id` → `userId`)
+- `PascalCase` → `camelCase` (e.g. `UserId` → `userId`)
+- `ALL_CAPS` → `camelCase` (e.g. `FIRST_NAME` → `firstName`, `LAST` → `last`)
+
 ```typescript
 import { toCamelCaseKeys } from 'es-toolkit/object';
 
@@ -50,6 +54,11 @@ const nestedResult = toCamelCaseKeys(nested);
 //     }
 //   }
 // }
+
+// PascalCase and ALL_CAPS keys are also converted
+const raw = { UserId: 1, FIRST_NAME: 'JinHo', LAST: 'Yeom' };
+const converted = toCamelCaseKeys(raw);
+// converted is { userId: 1, firstName: 'JinHo', last: 'Yeom' }
 ```
 
 #### Parameters

docs/zh_hans/reference/object/toCamelCaseKeys.md

@@ -14,6 +14,10 @@ const camelCased = toCamelCaseKeys(obj);
 
 当您想要将对象的所有键转换为驼峰命名法时,请使用 `toCamelCaseKeys`。嵌套对象和数组中的对象也会递归转换。
 
+- `snake_case` → `camelCase`（例如 `user_id` → `userId`）
+- `PascalCase` → `camelCase`（例如 `UserId` → `userId`）
+- `ALL_CAPS` → `camelCase`（例如 `FIRST_NAME` → `firstName`, `LAST` → `last`）
+
 ```typescript
 import { toCamelCaseKeys } from 'es-toolkit/object';
 
@@ -50,6 +54,11 @@ const nestedResult = toCamelCaseKeys(nested);
 //     }
 //   }
 // }
+
+// PascalCase 和 ALL_CAPS 的键也会被转换
+const raw = { UserId: 1, FIRST_NAME: 'JinHo', LAST: 'Yeom' };
+const converted = toCamelCaseKeys(raw);
+// converted 是 { userId: 1, firstName: 'JinHo', last: 'Yeom' }
 ```
 
 #### 参数