chore: checkpoint web Blender migration source, tools and docs

Accumulated uncommitted work: GHOST Web backend, WebGL/GPU web layer,
web workflow engine and protocol, tooling, docs and task records.
Large generated evidence, user-testing archives, build snapshots and
imported test assets remain untracked.

Co-Authored-By: Claude Code <noreply@anthropic.com>

web/protocol/animation-render-commands.ts

@@ -11,8 +11,8 @@ export const animationRenderCommands = Object.freeze({
   deleteKeyframe(objectId: string, frame: number, property?: AnimationCommand<"deleteObjectKeyframe">["property"]): AnimationCommand<"deleteObjectKeyframe"> {
     return { type: "deleteObjectKeyframe", objectId, frame, ...(property ? { property } : {}) };
   },
-  createAction(name: string, objectId?: string): AnimationCommand<"createAction"> {
-    return { type: "createAction", name, ...(objectId ? { objectId } : {}) };
+  createAction(name: string, objectId?: string, useFakeUser?: boolean): AnimationCommand<"createAction"> {
+    return { type: "createAction", name, ...(objectId ? { objectId } : {}), ...(useFakeUser === undefined ? {} : { useFakeUser }) };
   },
   removeAction(actionId: string): AnimationCommand<"removeAction"> {
     return { type: "removeAction", actionId };