feat!: useShapeQuery prend le Scope du SDK, et un store se nomme par sa reference

packages/polyfill/docs/polyfill-reference.md

@@ -314,7 +314,7 @@ from the reactive contract:
    `sparqlUpdate` on a doc it is itself subscribed to (`subscribeDoc` /
    `ng.doc_subscribe`), the subscription callback appears NOT to fire for its OWN
    local commit in the same session — so the reactive re-read chain
-   ([`../src/surface/watch-shape.ts`](../src/surface/watch-shape.ts) `watchShape` → `reread` →
+   ([`../src/surface/use-shape-query.ts`](../src/surface/use-shape-query.ts) `useShapeQuery` → `reread` →
    [`../src/surface/read-model.ts`](../src/surface/read-model.ts) `readUnion`) never runs, and
    consumers keep the STALE value until the next connection delivers a fresh
    initial `State`. **Remote** commits DO push correctly (verified: cross-browser