Add comprehensive API documentation for the cleveragents.acms package,
covering the four-layer UKO ontology hierarchy (Layer 0-3), all public
types (VocabularyRegistry, ProvenanceInfo, UKOClass, UKOProperty,
UKOVocabulary, Layer2Dependency, ParadigmVocabulary), detail level maps
(DetailLevelMapBuilder, build_detail_level_map, build_effective_map,
resolve_detail_level), and all Layer 3 language vocabulary types for
Python, TypeScript, Rust, and Java.
- Add docs/api/acms.md with full API reference and usage example
- Update docs/api/index.md to include ACMS/UKO in the module index
- Update mkdocs.yml nav to include the new ACMS/UKO page
- Update CHANGELOG.md [Unreleased] with the documentation addition
