feat(user): add local avatar management flow

inc/helpers/aksrt-user-center.php

@@ -373,20 +373,27 @@ if (!function_exists('aksrt_user_center_avatar_upload_config')) {
 		if (!$enabled) {
 			return [];
 		}
+		$settings = class_exists('\AKSRT\Settings\Settings') ? \AKSRT\Settings\Settings::get_all() : [];
+		$max_size = max(1, min(10, (int) ($settings['avatar_max_size'] ?? 2))) * MB_IN_BYTES;
 		return [
-			'enabled'      => true,
-			'restUrl'      => rest_url('aksrt/v1/user/avatar'),
-			'restNonce'    => wp_create_nonce('wp_rest'),
-			'buttonId'     => 'aksrt-upload-avatar-btn',
-			'inputId'      => 'aksrt-avatar-file-input',
-			'imageId'      => 'aksrt-user-avatar-image',
-			'fieldName'    => 'avatar',
-			'maxSize'      => 2 * MB_IN_BYTES,
-			'idleText'     => __('更换头像', 'aksrt'),
-			'loadingText'  => __('上传中…', 'aksrt'),
-			'tooLargeText' => __('图片大小不能超过 2MB', 'aksrt'),
-			'successText'  => __('头像已更新', 'aksrt'),
-			'errorText'    => __('头像上传失败', 'aksrt'),
+			'enabled'           => true,
+			'restUrl'           => rest_url('aksrt/v1/user/avatar'),
+			'restNonce'         => wp_create_nonce('wp_rest'),
+			'buttonId'          => 'aksrt-upload-avatar-btn',
+			'removeButtonId'    => 'aksrt-remove-avatar-btn',
+			'inputId'           => 'aksrt-avatar-file-input',
+			'imageId'           => 'aksrt-user-avatar-image',
+			'fieldName'         => 'avatar',
+			'maxSize'           => $max_size,
+			'idleText'          => __('更换头像', 'aksrt'),
+			'loadingText'       => __('上传中…', 'aksrt'),
+			'removeText'        => __('恢复默认头像', 'aksrt'),
+			'removingText'      => __('恢复中…', 'aksrt'),
+			'confirmRemoveText' => __('确定恢复为默认头像？当前上传的头像文件将被删除。', 'aksrt'),
+			'tooLargeText'      => sprintf(__('图片大小不能超过 %dMB', 'aksrt'), (int) ($max_size / MB_IN_BYTES)),
+			'successText'       => __('头像已更新', 'aksrt'),
+			'removeSuccessText' => __('已恢复默认头像', 'aksrt'),
+			'errorText'         => __('头像操作失败', 'aksrt'),
 		];
 	}
 }