Revert "test(kv): exclude health probes from warm read measurements"

This reverts commit 631003f755.

src/backend/drivers/kv/KVStoreDriver.handles.integration.test.ts

@@ -225,10 +225,6 @@ beforeAll(async () => {
         kv: { shareHandles: true },
         unlimitedMetering: true,
         jwt_secret_v2: SECRET,
-        // Warm-read SQL assertions must exclude periodic database health probes.
-        server_health: {
-            disabled_checks: ['database-liveness', 'database-primary-liveness'],
-        },
     } as IConfig);
 
     const strangerCreds = await createTestUser(env.server, {