feat: implement under 13 DOB guard and email/password validation route

packages/api-client/src/modules/labrinth/auth/v2.ts

@@ -57,6 +57,22 @@ export class LabrinthAuthV2Module extends AbstractModule {
 		})
 	}
 
+	/**
+	 * Validate email/password inputs for account creation without creating an account.
+	 *
+	 * @param data - Prospective account credentials
+	 */
+	public async validateCreateAccount(
+		data: Labrinth.Auth.v2.ValidateCreateAccountRequest,
+	): Promise<void> {
+		return this.client.request(`/auth/create/validate`, {
+			api: 'labrinth',
+			version: 2,
+			method: 'POST',
+			body: data,
+		})
+	}
+
 	/**
 	 * Create a new account from an OAuth callback flow state
 	 *

packages/api-client/src/modules/labrinth/types.ts

@@ -278,6 +278,12 @@ export namespace Labrinth {
 				session: string
 			}
 
+			export type ValidateCreateAccountRequest = {
+				username: string
+				password: string
+				email: string
+			}
+
 			export type CreateOAuthAccountRequest = {
 				username: string
 				state: string