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/webserver/server.go

@@ -14,8 +14,8 @@ import (
 	"github.com/go-chi/chi/v5"
 	"github.com/go-chi/chi/v5/middleware"
 
-	mcrv1 "git.wntrmute.dev/kyle/mcr/gen/mcr/v1"
-	"git.wntrmute.dev/kyle/mcr/web"
+	mcrv1 "git.wntrmute.dev/mc/mcr/gen/mcr/v1"
+	"git.wntrmute.dev/mc/mcr/web"
 )
 
 // LoginFunc authenticates a user and returns a bearer token.