[Feature Request] LLM Docs: Ability to add specific models/properties

[lsmith77]

Is your feature request related to a problem? Please describe.
We use @deny() and @@openapi.ignore() extensively to control in the OpenAPI output and would like the LLM Docs to follow these directives.

Describe the solution you'd like
Generated docs should take into account the OpenAPI plugin output as an option.

Describe alternatives you've considered
A way to inject additional instructions into the LLM docs prompt.

Additional context
Add any other context or screenshots about the feature request here.

See also #2279, #2281