fix: 修复配额说明重复和undefined问题

- 在editStorageForm中初始化oss_storage_quota_value和oss_quota_unit
- 删除重复的旧配额说明块，保留新的当前配额设置显示

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/node_modules/svg-captcha/index.d.ts

@@ -0,0 +1,118 @@
+/**
+ * config captcha generation options
+ */
+declare class ConfigObject {
+	/**
+	 * default: true
+	 * The length of the random string
+	 */
+	size?: number;
+	/**
+	 * width of captcha
+	 */
+	width?: number;
+	/**
+	 * height of captcha
+	 */
+	height?: number;
+	/**
+	 * captcha text size
+	 */
+	fontSize?: number;
+	/**
+	 * random character preset
+	 */
+	charPreset?: string;
+	/**
+	 * default: false
+	 * if false, captcha will be black and white
+	 * otherwise, it will be randomly colorized
+	 */
+	color?: boolean;
+	/**
+	 * default: false
+	 * if set to true, it will draw with light grey color
+	 * use if you have a site with dark theme
+	 * only active when color is set to false
+	 */
+	inverse?: boolean;
+	/**
+	 * default: ''
+	 * filter out some characters
+	 */
+	ignoreChars?: string;
+	/**
+	 * default: 1
+	 * number of noise lines
+	 */
+	noise?: number;
+	/**
+	 * default: white
+	 * background color of svg image
+	 */
+	background?: string;
+	/**
+	 * default: +
+	 * the math operator to use, "+", "-" or "+/-"
+	 * if unknown operator passed defaults to "+/-"
+	 */
+	mathOperator?: string;
+	/**
+	 * default: 1
+	 * min value of the math expression
+	 */
+	mathMin?: number;
+	/**
+	 * default: 9
+	 * max value of the math expression
+	 */
+	mathMax?: number;
+}
+/**
+ * result of captcha generation
+ */
+interface CaptchaObj {
+	/**
+	 * the captcha text,
+	 * store this in your session
+	 */
+	text: string,
+	/**
+	 * the svg image in string,
+	 * set type of image/svg before send to client side
+	 */
+	data: string
+}
+/**
+ * This method returns a object that has two props:
+ * data: svg image string
+ * text: captcha text
+ * @param {ConfigObject} [options]
+ * @return {CaptchaObj}
+ */
+export function create(options?: ConfigObject): CaptchaObj;
+/**
+ * This method returns a object that has two props:
+ * data: svg image string
+ * text: captcha text
+ * note that this method generate a math expression
+ * this means that text is the result of the math expression
+ * @param {ConfigObject} [options]
+ * @return {CaptchaObj}
+ */
+export function createMathExpr(options?: ConfigObject): CaptchaObj;
+/**
+ * Override the default font with your own
+ * @param {string} url
+ */
+export function loadFont(url: string): void;
+/**
+ * captcha generation global setting
+ */
+export const options: ConfigObject;
+/**
+ * return a random string
+ * @param {number} size
+ * @return {string}
+ */
+export function randomText(size: number): string;