Reduce grid size and frames for HuggingFace server compatibility

Add rear/side view camera presets, ensure all pages included

Fix landform animations: barchan, U-valley, volcanoes, lava plateau; add Lab page, zone overlay

Add 6 new landforms, improve animation, add Overview page

Fix: Extract renderer module for HuggingFace compatibility

v4.3: Multi-Page structure + 5 new landforms (uvala, tower_karst, karren, transverse_dune, star_dune)

Server-side 3D rendering with kaleido - no WebGL needed

Remove all 3D from gallery tab - use only 2D matplotlib to fix WebGL

Add 2D/3D toggle for animation - 2D default to avoid WebGL overflow

Restore 3D animation with fixed key for WebGL context reuse

Fix animation: use matplotlib 2D instead of Plotly 3D to avoid WebGL overflow

Use GitHub raw URLs for images

Add safe_image helper for missing images

Replace st.image with safe_image for missing files

Fix Plotly colorbar titlefont deprecation

Geo-Lab v4.1 - Clean deployment