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/.bin/bcrypt

@@ -0,0 +1 @@
+../bcryptjs/bin/bcrypt

backend/node_modules/.bin/crc32

@@ -0,0 +1 @@
+../crc-32/bin/crc32.njs

backend/node_modules/.bin/fxparser

@@ -0,0 +1 @@
+../fast-xml-parser/src/cli/cli.js

backend/node_modules/.bin/glob

@@ -0,0 +1 @@
+../glob/dist/esm/bin.mjs

backend/node_modules/.bin/mime

@@ -0,0 +1 @@
+../mime/cli.js

backend/node_modules/.bin/mkdirp

@@ -0,0 +1 @@
+../mkdirp/bin/cmd.js

backend/node_modules/.bin/node-which

@@ -0,0 +1 @@
+../which/bin/node-which

backend/node_modules/.bin/ot

@@ -0,0 +1 @@
+../opentype.js/bin/ot

backend/node_modules/.bin/prebuild-install

@@ -0,0 +1 @@
+../prebuild-install/bin.js

backend/node_modules/.bin/rc

@@ -0,0 +1 @@
+../rc/cli.js

backend/node_modules/.bin/semver

@@ -0,0 +1 @@
+../semver/bin/semver.js