Migrate module path from kyle/ to mc/ org

All import paths updated to git.wntrmute.dev/mc/. Bumps mcdsl to v1.2.0.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

internal/grpcserver/zones.go

@@ -9,8 +9,8 @@ import (
 	"google.golang.org/grpc/status"
 	"google.golang.org/protobuf/types/known/timestamppb"
 
-	pb "git.wntrmute.dev/kyle/mcns/gen/mcns/v1"
-	"git.wntrmute.dev/kyle/mcns/internal/db"
+	pb "git.wntrmute.dev/mc/mcns/gen/mcns/v1"
+	"git.wntrmute.dev/mc/mcns/internal/db"
 )
 
 type zoneService struct {