v0.0.1-dev: GGUF weights + validated VAE graphs

Dev-stage weight drop for the see-through.cpp port.

Converted GGUFs (f16, via convert_diffusers_to_gguf.py) and reference activation pairs for the validated graphs (test_trans_vae, test_sd_vae, test_trans_vae_full).

The two UNet GGUFs exceed GitHub's 2 GB asset limit and are attached as zstd-compressed split parts. Reassemble with:

cat layerdiff-unet.gguf.zst.part* | zstd -d -o layerdiff-unet.gguf
cat marigold-unet.gguf.zst.part* | zstd -d -o marigold-unet.gguf