refactor: reorganize modules and add Linux build tooling

module/social/relation/internal/logic/friend/search.go

@@ -0,0 +1,22 @@
+package friend
+
+import (
+	"context"
+
+	"git.apinb.com/bsm-sdk/core/errcode"
+	"git.apinb.com/bsm-sdk/core/service"
+	pb "bsm/full/module/social/relation/pb"
+)
+
+// 搜索
+func Search(ctx context.Context, in *pb.SearchRequest) (reply *pb.PartFriendReply, err error) {
+	// parse authorization meta.
+	_, err = service.ParseMetaCtx(ctx, nil)
+	if err != nil {
+		return nil, err
+	}
+	if in.Keyword == "" {
+		return nil, errcode.ErrInvalidArgument
+	}
+	return &pb.PartFriendReply{}, nil
+}