fix(db): protege conexoes e migrations de homologacao

scripts/worker.ts

@@ -27,7 +27,7 @@ if (jobRunsInline()) {
 }
 
 runScript("worker", async () => {
-  const db = await openOperationalDb();
+  const db = await openOperationalDb("worker");
 
   // O worker não aplica migrations: isso é passo explícito e aprovado do deploy.
   const pending = await pendingMigrations(db);