Add preview template config and starter static site.

Includes .webklar-preview.json for automatic deployment to
*.project.webklar.com via the Webklar preview webhook.

Co-authored-by: Cursor <cursoragent@cursor.com>

.gitignore

@@ -0,0 +1,8 @@
+node_modules/
+dist/
+out/
+build/
+.env
+.env.local
+.DS_Store
+*.log