Use non-gated DreamShaper image model

Switch generation to FLUX schnell

Prefer AI floor plan rendering over CAD overlay

Move Python 3.13 audio shim to local requirements

Add local CPU test support

Use AI img2img for plan colorization

Support Hugging Face ZeroGPU runtime

Use SDXL ControlNet for plan colorization

Fix Hugging Face Space metadata

Build PlanPalette Gradio Space