cmd/

ogen-fixbinary fixes nullable binary file fields in ogen-generated multipart form encoders.

Command ogen-fixerror fixes ogen-generated code to preserve error response bodies.

Command ogen-fixformdata fixes ogen-generated code to skip encoding empty JSON arrays/objects in form-data.

Command ogen-fixnull fixes ogen-generated code to handle null values in Opt* types.

Command ogen-fixnull31 preprocesses OpenAPI 3.1 specs for ogen compatibility.