chore(deps): update eslint-config and remove unused dependencies

- Downgraded @sxzz/eslint-config from 7.2.6 to 7.1.0 in package.json and pnpm-lock.yaml for compatibility.
- Removed @prettier/plugin-oxc from dependencies as it is no longer needed.
- Updated encoding in backup.service.ts from 'utf-8' to 'utf8' for consistency.

Signed-off-by: Innei <tukon479@gmail.com>

Author: Innei

apps/core/src/modules/backup/backup.service.ts

@@ -9,7 +9,7 @@ import {
   Logger,
 } from '@nestjs/common'
 import { CronExpression } from '@nestjs/schedule'
-import { DEMO_MODE, MONGO_DB } from '~/app.config'
+import { MONGO_DB } from '~/app.config'
 import { CronDescription } from '~/common/decorators/cron-description.decorator'
 import { CronOnce } from '~/common/decorators/cron-once.decorator'
 import { BusinessEvents, EventScope } from '~/constants/business-event.constant'
@@ -232,7 +232,7 @@ export class BackupService {
 
     try {
       const packageJson = await readFile(join(backupDataDir, 'package.json'), {
-        encoding: 'utf-8',
+        encoding: 'utf8',
       })
       const pkg = JSON.parse(packageJson)
       if (pkg.dependencies) {

package.json

@@ -21,8 +21,7 @@
   },
   "devDependencies": {
     "@ianvs/prettier-plugin-sort-imports": "4.7.0",
-    "@prettier/plugin-oxc": "0.0.4",
-    "@sxzz/eslint-config": "7.2.6",
+    "@sxzz/eslint-config": "7.1.0",
     "@types/node": "24.5.2",
     "cross-env": "10.0.0",
     "eslint": "^9.36.0",