Add TypeScript types for validation

**Description**
Currently utils lacks proper monitoring support.

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

**Priority**: Low/Medium

The issue names utils but no files or tests. First locate the validation utilities and any existing monitoring or configuration entry points, then clarify whether the intended work is TypeScript types for validation or configurable monitoring. Done means the agreed scope is implemented with sensible defaults and verified by the relevant existing checks.

Written by the indexing model from the issue text.