Fix silent exit when a query runs on a connection left idle by a prompt

An idle Bun.SQL connection does not keep the event loop alive. After an
inquirer prompt released stdin, the next query let Bun exit with code 0
mid-query: `schema` never applied confirmed destructive changes, and
`admin` table views exited instead of showing results. Hold the loop open
for the duration of every query and transaction.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

package.json

@@ -1,6 +1,6 @@
 {
     "name": "@moduletrace/bun-mariadb",
-    "version": "1.0.23",
+    "version": "1.0.24",
     "description": "Schema-driven MariaDB manager for Bun",
     "author": "Benjamin Toby",
     "license": "MIT",