Update components documentation

**Description**
Currently routes lacks proper serialization support.

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

**Priority**: Low/Medium

The issue names routes and components but provides no files, tests, or entry points. Start by locating route handling and its current serialization behavior; done means configurable serialization with sensible defaults is implemented and the component documentation reflects the supported behavior.

Written by the indexing model from the issue text.