[v2] Auto-generate configuration documentation

We want to employ a schema-first approach to configuration:

• define a schema for configuration structures first
• use code generator to create types in Go
• automatically generate documentation from the schema

(30-Jan-2026) The OTEL Collector is also moving in this direction, with the first phase available where Go structs can be parsed to generate schema in YAML (https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/45732)

References:

• Print active configuration (unresolved: Print final configuration OTEL #5223)
• https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/27003
• Config documentation
  • https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/cmd/configschema/docsgen/README.md
  • https://www.otelbin.io/ https://github.com/dash0hq/otelbin/issues/179
• https://github.com/nimbushq/otel-validator

Tasks:

• Try running the schemagen script on some of Jaeger's internal collector extensions to see if it can generate sensible schemas.
• Auto-generate documentation from those schemas (follow OTEL example)