scenario-blender-uv-baking

# UV unwrapping and baking Expert-level UVs put seams where the texturing method can afford them, set texel density before texture size, and pack with pixel-true padding. Expert bakes measure their projection distances instead of guessing, and are judged in pixels and under a raking light, never eyeballed once. Every stage below has a measurable gate that [`scripts/bx_uvbake.py`](scripts/bx_uvbake.py) computes. If a sibling skill named here is missing from your available skills, ask the user to install it (`npx skills add scenario-labs/skills --skill <name>`); unattended, proceed from tool schemas and flag the gap. **REQUIRED BACKGROUND:** scenario-blender-expert (execution channel, review loop, 5.2 API changes). ## Stance (the expert delta) - **Seams follow the texturing method.** Kaspar (2021, 2D painting): as few as possible, hidden under hair, clothes and inner limbs. Blender Studio guide (2024, same author): more seams rather than fewer when you paint in 3D or bake, because stretch costs more. Game bakes add a hard rule: every hard edge is a seam, or the normal map cracks (Lampel, Gambrell, On Mars 3D, Polycount). - **Only closed shells and long tubes need extra cuts.** Morren: anything closed on itself needs one cut. Gambrell: cut every taped-paper ring once, hidden. But an island with holes (a face with eye holes, a washer) flattens fine. `cut_to_disks` test-unwraps it and cuts only if it stretches [added; cutting everything folded the sheep's big islands]. - **Unw...