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en: - new: api-reference/notifications.md, reference/maintainer/running-locally.md, reference/maintainer/tech-stack.md - concepts/index.md: add Mermaid architecture diagram - index.md: scope-note MongoDB store as plat-tier - concepts/api-surface.md: point "the four-table read" link at the reference/maintainer/runtime.md anchor that actually contains the section - maintainer/index.md, api-reference/index.md, mkdocs.yml: nav + cross-links zh: - mirror translations of the new en pages, plus zh api-reference/* section
