Refactor config for better readability

**Problem**
When working with routes, the error messages could be more descriptive.

**Suggestion**
Improve error handling and add detailed error messages.

**Context**
This would help with debugging and maintenance.

No files or tests are named. Start by locating the route configuration and current error-handling entry points, then inspect how route failures are reported. Done means the configuration is easier to read and route errors provide more descriptive messages, with relevant existing checks still passing.

Written by the indexing model from the issue text.