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/events/.airtap.yml

@@ -0,0 +1,15 @@
+sauce_connect: true
+loopback: airtap.local
+browsers:
+  - name: chrome
+    version: latest
+  - name: firefox
+    version: latest
+  - name: safari
+    version: 9..latest
+  - name: iphone
+    version: latest
+  - name: ie
+    version: 9..latest
+  - name: microsoftedge
+    version: 13..latest