chore: import upstream snapshot with attribution

examples/telemetry/website/add_todo.sql

@@ -0,0 +1,8 @@
+-- Toggle an existing todo
+UPDATE todos SET done = $done::boolean WHERE id = $id::int;
+
+-- Insert a new todo if title is provided via the form (POST)
+INSERT INTO todos (title)
+SELECT :title WHERE :title IS NOT NULL AND length(:title) > 0;
+
+SELECT 'redirect' AS component, '/' AS link;

examples/telemetry/website/index.sql

@@ -0,0 +1,11 @@
+SELECT 'list' AS component,
+       'Todo List' AS title;
+
+SELECT title,
+       CASE WHEN done THEN 'complete' ELSE 'pending' END AS description,
+       'add_todo.sql?id=' || id || '&done=' || (NOT done)::text AS link
+FROM todos
+ORDER BY created_at DESC;
+
+SELECT 'form' AS component, 'Add a todo' AS title, 'add_todo.sql' AS action;
+SELECT 'title' AS name, 'What do you need to do?' AS placeholder;

examples/telemetry/website/slow.sql

@@ -0,0 +1,7 @@
+SELECT pg_sleep(15);
+
+SELECT 'list' AS component,
+       'Slow Query Complete' AS title;
+
+SELECT 'The slow query finished successfully.' AS title,
+       'This page exists to make PostgreSQL query-sample events easy to capture.' AS description;