Tooltips, Alignment & Nine-Slice

September was a polish sprint with 23 releases. A comprehensive tooltip system was built — every button and control in the UI now shows a tooltip on hover. The Bottom Panel was introduced as a persistent bar for common actions like focusing on the stage. Alignment tools were improved with proper spacing calculations. Dynamic sliders replaced static sliders in the Filters and Text inspectors. Nine-slice support was fixed for proper inset propagation. The welcome screen got scene preview thumbnails from saved JSON. A SceneInspector was added for setting the scene FPS and resolution from the Properties panel. zImporter_PIXI7 received its first significant update: improved text handling, ZContainer resizing logic, and pivot behaviour on fit-to-screen.