Replaces the super-admin-only /.admin/ surface with a public-by-default
/.profile/ page that layers admin tools server-side based on the
caller's effective access:
- Universal (everyone, anonymous included): identity card, effective
access summary, theme picker, localStorage utilities (export / import
/ clear, landing-presets viewer).
- Subtree admins additionally see: editable .zddc files list (linking
to the existing form-based editor) and a "Create new project folder"
form.
- Super-admins additionally see: server config, log viewer, whoami
headers (the old /.admin/ JSON endpoints, repointed under /.profile/).
Project creation is gated on CanEditZddc(newDir) — the same strict-
ancestor rule that already governs .zddc writes — so no new authority
concept is introduced. ValidateProjectName mirrors the existing
reserved-prefix policy (no leading '.' or '_', no path separators).
/.admin/* is hard-cut: no redirect shim. Old URLs fall through to the
existing dot-prefix guard and 404. Custom CSS file rename: prefer
<root>/.profile.css, fall back to legacy <root>/.admin.css.
Per-resource 404 leakage gates preserved on whoami / config / logs /
zddc / projects so non-admin callers cannot detect the existence of
admin-only sub-resources.
Tree-wide gofmt -w applied as a side-effect.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
