7b277480f0
Persist generation-dialog snapshots into the canvas layout and restore them on load. Added serialization/hydration helpers and layout splitting in ImageCanvasEditorModel to store/load generation dialogs alongside layers; updated view and hooks to restore dialogs and keep composer state after refresh. Hide generation placeholders when a generated result layer exists, and persist generated images into the account-level asset library (createEditorAsset) for non-video results. Updated workflows and surfaces to invoke the new persist flow, added tests covering restore, placeholder hiding and asset creation, and updated docs/decision log to reflect the new behavior.