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]>

dist/lib/db-handler.d.ts

@@ -15,6 +15,13 @@ type Param = {
  * and CRUD do not open a new connection per query.
  */
 export declare function resolveClient(config?: BunMariaDBConfig): Bun.SQL | undefined;
+/**
+ * Keep the event loop alive until `fn` settles.
+ * An idle Bun.SQL connection does not hold the process open, so a query sent
+ * on it after something else released the loop (e.g. an inquirer prompt
+ * releasing stdin) lets Bun exit silently mid-query.
+ */
+export declare function holdEventLoop<T>(fn: () => Promise<T>): Promise<T>;
 /**
  * # Main DB Handler Function
  */