refactor(eslint): change unused vars rule to error and update error handling in services

- Update ESLint configuration to set `@typescript-eslint/no-unused-vars` from 'warn' to 'error' for stricter linting.
- Refactor error handling in various services to omit error variable in catch blocks for cleaner code.

src/api/integrations/storage/s3/libs/minio.server.ts

@@ -33,7 +33,7 @@ const bucketExists = async () => {
     try {
       const list = await minioClient.listBuckets();
       return list.find((bucket) => bucket.name === bucketName);
-    } catch (error) {
+    } catch {
       return false;
     }
   }