Initial scaffold: @ng-eventually/client — SDK-shaped polyfill over NextGraph

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>

package.json

@@ -0,0 +1,15 @@
+{
+  "name": "ng-eventually",
+  "private": true,
+  "type": "module",
+  "description": "Generic polyfill layer over the NextGraph JS SDK — makes a single broker behave like the (not-yet-shipped) multi-user NextGraph: emulated capabilities and inbox. Drop-in SDK-shaped client; remove at migration. (A global-index curator package is deferred — see README.)",
+  "workspaces": ["packages/*"],
+  "scripts": {
+    "test": "bun test",
+    "typecheck": "bunx tsc --noEmit -p packages/client/tsconfig.json"
+  },
+  "devDependencies": {
+    "@types/bun": "latest",
+    "typescript": "^5.6.0"
+  }
+}