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/glob/dist/esm/has-magic.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"has-magic.d.ts","sourceRoot":"","sources":["../../src/has-magic.ts"],"names":[],"mappings":"AACA,OAAO,EAAE,WAAW,EAAE,MAAM,WAAW,CAAA;AAEvC;;;;;;;;;;GAUG;AACH,eAAO,MAAM,QAAQ,GACnB,SAAS,MAAM,GAAG,MAAM,EAAE,EAC1B,UAAS,WAAgB,KACxB,OAQF,CAAA"}