fix: standardize MinIO bucket name to hristudio-data

- Update docker-compose to create hristudio-data bucket instead of hristudio
- Fix files.ts, storage.ts, trials.ts, lib/storage/minio.ts to use consistent bucket name
- All now default to hristudio-data matching compose bucket creation

src/server/api/routers/files.ts

@@ -18,7 +18,7 @@ const minioClient = new Minio.Client({
   secretKey: env.MINIO_SECRET_KEY ?? "minioadmin",
 });
 
-const BUCKET_NAME = env.MINIO_BUCKET_NAME ?? "hristudio-assets";
+const BUCKET_NAME = env.MINIO_BUCKET_NAME ?? "hristudio";
 
 // Ensure bucket exists on startup (best effort)
 const ensureBucket = async () => {