Expand render graph playground editing

Amp-Thread-ID: https://ampcode.com/threads/T-01a033d4-0e44-708e-af0e-6166283416ff
Co-authored-by: Heaust Azure <heaust.azure@gmail.com>

vendor/fxnode/test/browser/client-multiview.spec.ts

@@ -25,10 +25,16 @@ test("canvas-free authority owns independent attachable views", async ({ page })
         else if (message.type === "view.attach") {
           // Exercise the valid event-before-acknowledgement ordering.
           this.emit({
-            protocol: 3,
+            protocol: 4,
             type: "view.selection.host",
             viewId: message.viewId,
-            projection: { nodeCount: 0, linkCount: 0, canRemove: false, mute: { enabled: false } },
+            projection: {
+              nodeIds: [],
+              nodeCount: 0,
+              linkCount: 0,
+              canRemove: false,
+              mute: { enabled: false },
+            },
           });
           this.respond(message.id);
         } else if (message.type === "view.detach") this.respond(message.id);
@@ -50,7 +56,7 @@ test("canvas-free authority owns independent attachable views", async ({ page })
       settleViewport(ok: boolean): void {
         const id = this.heldViewportIds.shift()!;
         this.emit({
-          protocol: 3,
+          protocol: 4,
           type: "response",
           id,
           ok,
@@ -60,7 +66,7 @@ test("canvas-free authority owns independent attachable views", async ({ page })
 
       private respond(id: string, value?: unknown): void {
         this.emit({
-          protocol: 3,
+          protocol: 4,
           type: "response",
           id,
           ok: true,
@@ -100,10 +106,11 @@ test("canvas-free authority owns independent attachable views", async ({ page })
         duplicateCode = (error as { code?: string }).code ?? "";
       }
       worker.emit({
-        protocol: 3,
+        protocol: 4,
         type: "view.selection.host",
         viewId: first.id,
         projection: {
+          nodeIds: ["selected-node"],
           nodeCount: 1,
           linkCount: 0,
           canRemove: true,
@@ -171,7 +178,7 @@ test("canvas-free authority owns independent attachable views", async ({ page })
         modifiers,
       });
       worker.emit({
-        protocol: 3,
+        protocol: 4,
         type: "view.resource.open",
         viewId: first.id,
         requestId: resourceOpenRequestId,