fix: address comments

Author: yiweichi

common/utils/ethereum.go renamed to common/utils/blob.go

@@ -23,10 +23,6 @@ CREATE INDEX IF NOT EXISTS idx_blob_upload_platform ON blob_upload(platform) WHE
 
 CREATE INDEX IF NOT EXISTS idx_blob_upload_status ON blob_upload(status) WHERE deleted_at IS NULL;
 
-CREATE INDEX IF NOT EXISTS idx_blob_upload_created_at ON blob_upload(created_at) WHERE deleted_at IS NULL;
-
-CREATE INDEX IF NOT EXISTS idx_blob_upload_updated_at ON blob_upload(updated_at) WHERE deleted_at IS NULL;
-
 CREATE INDEX IF NOT EXISTS idx_blob_upload_status_platform ON blob_upload(status, platform) WHERE deleted_at IS NULL;
 
 CREATE INDEX IF NOT EXISTS idx_blob_upload_batch_index_status_platform ON blob_upload(batch_index, status, platform) WHERE deleted_at IS NULL;

common/utils/ethereum_test.go renamed to common/utils/blob_test.go

@@ -154,7 +154,9 @@ func (b *BlobUploader) constructBlobCodec(dbBatch *orm.Batch) (*kzg4844.Blob, er
 	var encodingBatch *encoding.Batch
 	codecVersion := encoding.CodecVersion(dbBatch.CodecVersion)
 	switch codecVersion {
-	case encoding.CodecV0, encoding.CodecV1, encoding.CodecV2, encoding.CodecV3, encoding.CodecV4, encoding.CodecV5, encoding.CodecV6:
+	case encoding.CodecV0:
+		return nil, fmt.Errorf("codec version 0 doesn't support blob, batch index: %d", dbBatch.Index)
+	case encoding.CodecV1, encoding.CodecV2, encoding.CodecV3, encoding.CodecV4, encoding.CodecV5, encoding.CodecV6:
 		encodingBatch = &encoding.Batch{
 			Index:                      dbBatch.Index,
 			TotalL1MessagePoppedBefore: dbChunks[0].TotalL1MessagesPoppedBefore,