[Feature Request] Fix OpenAPI documentation generator crash for RPC endpoints

[daaain]

Is your feature request related to a problem? Please describe.
Currently for RPC endpoints the OpenAPI plugin generates a massive JSON file (100K+ lines for ~20 models), which makes the browser stall when using Swagger UI and trying to expand an API definition (eventually a popup asks to stop the script) and crash Redocly CLI with FATAL ERROR: Reached heap limit Allocation failed - JavaScript heap out of memory.

Describe the solution you'd like
A way to configure the depth the types that are generated by the OpenAPI plugin to put a limit on the size of each endpoint's schema.

Describe alternatives you've considered
I guess the documentation generators could also prevent this issue on their side.

Additional context
See this Discord thread for more context.

[matmill5]

@daaain experiencing the same issue! I was able to work with our openapi documentation generator vendor to improve the performance on their end, but it still isn't great... I think simply reducing the depth of the generated openapi spec would be sufficient.

[ymc9]

Fixed in 2.9.0

A new "omitInputDetails" plugin option is added to reduce the generated spec size.