Update controllers documentation

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

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

**Priority**: Low/Medium

The issue mentions controllers documentation and components, but names no files, entry points, or tests. First clarify whether the requested work is documentation-only or implementation of configurable monitoring, then locate the relevant controller and monitoring paths. Done should include the agreed monitoring behavior, sensible defaults, and any corresponding documentation or validation.

Written by the indexing model from the issue text.