chore: import upstream snapshot with attribution

examples/nginx/website/post.sql

@@ -0,0 +1,46 @@
+-- Display the post content using the card component
+SELECT 'card' as component,
+       'Post Details' as title,
+       1 as columns;
+SELECT p.title as title,
+       u.username as subtitle,
+       p.content as description,
+       p.created_at as footer
+FROM posts p
+JOIN users u ON p.user_id = u.id
+WHERE p.id = $id;
+
+-- Add a divider
+SELECT 'divider' as component;
+
+-- Display comments using the list component
+SELECT 'list' as component,
+       'Comments' as title;
+SELECT u.username as title,
+       c.content as description,
+       c.created_at as subtitle,
+       'user' as icon,
+       CASE 
+         WHEN c.user_id = p.user_id THEN 'blue'
+         ELSE 'gray'
+       END as color
+FROM comments c
+JOIN users u ON c.user_id = u.id
+JOIN posts p ON c.post_id = p.id
+WHERE c.post_id = $id
+ORDER BY c.created_at DESC;
+
+-- Add a divider
+SELECT 'divider' as component;
+
+-- Add a comment form
+SELECT 'form' as component,
+       'Add a comment' as title,
+       'Post comment' as validate,
+       '/add_comment.sql?id=' || $id as action;
+
+SELECT 'textarea' as type,
+       'content' as name,
+       'Your comment' as label,
+       'Write your comment here' as placeholder,
+       true as required;