The owner's tldraw canvas conventions: agent ledger, styling, and a pattern library (drill-down, ...)
The owner's house conventions for tldraw canvases — agent ledger page, styling, and a library of layout patterns (drill-down, …). Load alongside tldraw-offline whenever creating or editing a tldraw board, or when the user names a pattern - "drill down", "layered overview", "overview + detail", "zoom levels", "give it its own page", "multilevel canvas".
