Optimize middleware for large datasets

**Description**
Currently services lacks proper timeout support.

**Proposed solution**
Add configurable timeout with sensible defaults.

**Priority**: Low/Medium

No file, entry point, test, timeout default, or affected service is named. Start by locating the middleware and service implementation and its existing tests; determine where request timeouts are handled, then verify that the configurable timeout and sensible defaults are covered by tests.

Written by the indexing model from the issue text.