show cqn when running cql queries (#2438)

The `CQN` is now also shown in addition to the result and the `SQL`.

<img width="701" height="514" alt="Screenshot 2026-03-06 at 09 42 44"
src="https://github.com/user-attachments/assets/d1242ffc-d72d-429f-a4af-b173ee9dd9dc"
/>

Author: Akatuoro

.vitepress/theme/components/cds-playground/runners.js

@@ -81,11 +81,13 @@ async function evalJS(code) {
 
 async function cdsQL(query) {
   const cds = await initialized;
+  const cqn = cds.ql(query);
 
-  const { result, formatted } = await sql.trace(() => cds.ql(query));
+  const { result, formatted } = await sql.trace(() => cds.db.run(cqn));
   return [
     { value: result, kind: 'json', name: 'Result' },
-    { value: formatted, kind: 'sql', name: 'SQL'}
+    { value: formatted, kind: 'sql', name: 'SQL'},
+    { value: cqn, kind: 'json', name: 'CQN' },
   ];
 }