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/templates.go

@@ -8,7 +8,7 @@ import (
 	"strings"
 	"time"
 
-	"git.wntrmute.dev/kyle/mcr/web"
+	"git.wntrmute.dev/mc/mcr/web"
 )
 
 // templateSet wraps parsed templates and provides a render method.