refactor: centralize protobuf and remove go-zero

module/ec/mall/pb/blocks_compat.go

@@ -0,0 +1,11 @@
+package mall
+
+import blocks "bsm/full/protobuf"
+
+type Empty = blocks.Empty
+type FetchRequest = blocks.MallFetchRequest
+type IdentRequest = blocks.IdentRequest
+type StoreSerialRequest = blocks.StoreSerialRequest
+type StatusReply = blocks.IdentityStatusReply
+type VersionRequest = blocks.VersionRequest
+type SearchRequest = blocks.SearchRequest