Noteara: Notes, AI, Whiteboard

## What's new 1. **Whiteboard rulers** — straight edge, protractor, and triangle guides from the top menu. Place a guide on the page, move it, rotate (including 180° flip), and resize; draw along the edges with the pen while other tools stay available. 2. **Draw around the guide** — the ruler only captures touches on its body and controls, so you can ink along the edge and keep using the toolbars. 3. **Phone whiteboard layout** — clearer paper vs desk, stable page mapping when rotating, and zoom/pan that keeps iPad behavior intact. 4. **Home folders** — tablet sidebar and mobile folder lists scroll reliably without squeezing notes off-screen.