makeReadFilteredView wraps a DeepSignalSet in a Proxy whose iteration/size/forEach
yield only items the current user may read (canRead on the item's emulated grant), while
add/delete and the underlying reactivity pass through. filterReadable is the pure core.
useShape applies it only when a grantOf resolver is configured (else passthrough, so
ungranted apps are unaffected). grantOf/setGrantOf added to the polyfill surface. Mirrors
the broker delivering only authorized docs; removed at migration. 4 unit tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Generic polyfill layer that makes a single NextGraph broker behave like the
not-yet-shipped multi-user NextGraph (emulated capabilities + inbox). Zero app domain.
@ng-eventually/client exposes an SDK-identical surface (ng, useShape, inbox); the
polyfill bootstrap (configure + capability helpers) is isolated under /polyfill, so
the main entry stays a drop-in for @ng-org/web|orm. The real SDK is injected at
configure() (no hard import → build-alias safe + testable).
Scaffold: NextGraph wiring stubbed with TODO; capability helpers implemented and
unit-tested (4 tests, typecheck clean). The global-index curator is deferred — in
NextGraph apps/services are mono-user with no global data.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>