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/foreground-child/dist/esm/watchdog.d.ts

@@ -0,0 +1,10 @@
+import { ChildProcess } from 'child_process';
+/**
+ * Pass in a ChildProcess, and this will spawn a watchdog process that
+ * will make sure it exits if the parent does, thus preventing any
+ * dangling detached zombie processes.
+ *
+ * If the child ends before the parent, then the watchdog will terminate.
+ */
+export declare const watchdog: (child: ChildProcess) => ChildProcess;
+//# sourceMappingURL=watchdog.d.ts.map