Function mount 

pub fn mount(rocket: Rocket<Build>) -> Rocket<Build>

Mounts the generated agent-API documentation onto rocket:

• the #[openapi]-annotated agent routes (so they exist and are documented from one source),
• the OpenAPI 3 spec at GET /api/openapi.json,
• a RapiDoc browser page at GET /api/docs.

The annotated routes are mounted here (not in their modules’ plain route groups) so rocket_okapi can attach their operation metadata.