Deploy ZeroGPU compatible code with Sen2SR

Fix 3-band TIFF channel sorting bug caused by Gradio tmp dir paths

Enlarge image previews by moving download panel to new row

Remove sidebar from layout

Fix layout: restore banner CSS, use gr.Group for cards, improve footer contrast

Embed banner.png as base64 in navbar (no binary files)

UI redesign: match SentiEnhance mockup - light theme, teal accents, satellite navbar, improved layout

SentiEnhance UI Overhaul

Support multiple single-band GeoTIFF uploads

Add GeoTIFF support

Fix ZeroGPU timeout by increasing limit and lowering max image size

Deploy ZeroGPU codebase