Add user creation functionality: implement API endpoint for creating new users, including request handling and response management. Update frontend to support user creation with a new form in the UsersPanel, integrating role selection and input validation. Enhance i18n for new user-related strings.

frontend/src/shared/lib/i18n.ts

@@ -105,6 +105,11 @@ const resources = {
           block: 'Заблокировать',
           unblock: 'Разблокировать',
           filterAll: 'Все роли',
+          createTitle: 'Создать пользователя',
+          password: 'Пароль',
+          passwordHint: 'Минимум 8 символов, хотя бы одна цифра и заглавная буква.',
+          create: 'Создать',
+          created: 'Пользователь создан',
         },
         media: {
           title: 'Медиа',
@@ -344,6 +349,11 @@ const resources = {
           block: 'Block',
           unblock: 'Unblock',
           filterAll: 'All roles',
+          createTitle: 'Create user',
+          password: 'Password',
+          passwordHint: 'At least 8 characters, including a digit and an uppercase letter.',
+          create: 'Create',
+          created: 'User created',
         },
         media: {
           title: 'Media',