Add TypeScript types for controllers

**Description**
Currently middleware lacks proper logging support.

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

**Priority**: Low/Medium

The issue mentions controllers, middleware, TypeScript types, and configurable logging, but names no files, tests, or entry points. Start by locating the controller and middleware implementations, then clarify whether the intended work is type definitions or logging support. Done means the scope, logging defaults, and validation approach are agreed.

Written by the indexing model from the issue text.