README: replace placeholder with full project overview — usage,
skill setup (UE_DOCS_PATH/UE_ENGINE_ROOT env vars), sample files,
output format reference.
CLAUDE.md: drop "in development" (project is complete), add
.claude/skills/ue-api/ to the current state file list.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>