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/minimist/test/kv_short.js

@@ -0,0 +1,32 @@
+'use strict';
+
+var parse = require('../');
+var test = require('tape');
+
+test('short -k=v', function (t) {
+	t.plan(1);
+
+	var argv = parse(['-b=123']);
+	t.deepEqual(argv, { b: 123, _: [] });
+});
+
+test('multi short -k=v', function (t) {
+	t.plan(1);
+
+	var argv = parse(['-a=whatever', '-b=robots']);
+	t.deepEqual(argv, { a: 'whatever', b: 'robots', _: [] });
+});
+
+test('short with embedded equals -k=a=b', function (t) {
+	t.plan(1);
+
+	var argv = parse(['-k=a=b']);
+	t.deepEqual(argv, { k: 'a=b', _: [] });
+});
+
+test('short with later equals like -ab=c', function (t) {
+	t.plan(1);
+
+	var argv = parse(['-ab=c']);
+	t.deepEqual(argv, { a: true, b: 'c', _: [] });
+});