feat(gallery): add Qwen3.8 uncensored variants

Add the Q4_K_M and Q8_0 GGUF builds with the shared vision projector. Both builds enable their integrated MTP head for speculative decoding.

Assisted-by: Codex:gpt-5 [Hugging Face API]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
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