--- type: Changed pr: 605 --- **Public documentation rebranded to GSD Core and restructured around Diataxis** — the root README and `docs/` are reorganised into tutorials, how-to guides, reference, and explanation, with new how-to guides, schema references (STATE.md / CONTEXT.md / PLAN.md / planning artifacts), and full cross-linking; legacy `gsd-build` references are updated to `open-gsd`, and the localised doc trees (ja-JP, ko-KR, pt-BR, zh-CN) are regenerated to match. Internal filesystem paths are unchanged. (#605)