architecture/ holds mermaid class diagrams of the bdrive web server: the
Server core with its seams (Source, AuthProvider, Directory, QuotaProvider,
remote.Backend) and the MetaStore persistence layer.
Convention (CLAUDE.md): a PR that changes the drawn structure updates the
affected diagram in the same branch and embeds only the changed diagrams'
mermaid blocks in the PR description. A PreToolUse hook on gh pr create
(.claude/hooks/check-arch-diagrams.sh) blocks PR creation when
internal/webapp or internal/remote changed but architecture/ didn't;
override with '# skip-diagram-check' when nothing structural changed.
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
