test(integration): expect the worker's own database in the environment check

The environment check pinned the database a worker talks to as the single
shared one. Each worker now runs against its own clone, so the check names
the clone and asserts it is not the migrated template the clones copy.

tests/integration/ci-environment.test.ts

@@ -1,6 +1,7 @@
 import { describe, expect, it } from "vitest";
 
 import { getPrismaClient } from "./setup";
+import { TEMPLATE_DATABASE, workerDatabaseName } from "./worker-database";
 
 const TEST_ENCRYPTION_KEY =
   "0000000000000000000000000000000000000000000000000000000000000000";
@@ -22,6 +23,9 @@ describe("integration worker environment", () => {
     >`
         SELECT current_database() AS database_name
       `;
-    expect(rows).toEqual([{ database_name: "healthlog_test" }]);
+    // Each worker runs against its own clone, never the migrated template
+    // the clones are copied from.
+    expect(rows).toEqual([{ database_name: workerDatabaseName() }]);
+    expect(rows[0].database_name).not.toBe(TEMPLATE_DATABASE);
   });
 });