adding buttons to remove listings from a given job

lib/services/storage/listingsStorage.js

@@ -251,3 +251,14 @@ export const queryListings = ({
 
   return { totalNumber, page: safePage, result: rows };
 };
+
+/**
+ * Delete all listings for a given job id.
+ *
+ * @param {string} jobId - The job identifier whose listings should be removed.
+ * @returns {any} The result from SqliteConnection.execute (may contain changes count).
+ */
+export const deleteListings = (jobId) => {
+  if (!jobId) return;
+  return SqliteConnection.execute(`DELETE FROM listings WHERE job_id = @jobId`, { jobId });
+};