Follows bitlogin's layering: the engine stays headless and the widget is a
consumer of the published API, never a dependency of it. Building it was also a
test of that API — an element needing something unexposed would have been a
finding, the way the commerce example was.
Viewer elements: governance-veil (blur on restrict, disclosure on hide, warning
on warn), governance-report, governance-status. Moderator elements:
governance-capabilities, governance-action, governance-admin-panel.
Deliberate behaviors:
- hidden content leaves the accessibility tree rather than being visually
covered, so a screen reader does not read out what the viewer must not see
- a hidden decision renders a disclosure, not nothing: content that silently
vanishes is indistinguishable from a bug and leaves no route to appeal
- refused moderator actions stay visible and name the missing capability. A
hidden button teaches nothing about the authority model, and the command
layer enforces the same check independently — the UI is an explanation,
never the gate
- no element computes policy; wording maps from stable reason identifiers and
is overridable per application
Found while building it: GovernanceAdminStore emitted only when reduced denial
state changed, so revoking a role that denied nobody announced nothing, leaving
capability-gated UI and the decision cache stale.
The root tsconfig deliberately omits the DOM lib — that absence is what keeps
core, nostr, and runtime from reaching for browser globals — so the widget
carries its own DOM-aware config rather than relaxing the guarantee globally.
687 tests; lint, typecheck, and the declaration build pass from a cold checkout.