sd: sync with master-866-42d6c0a

[wbruna]

master-856-e06b205:

• fix: enable VAE decode tiling fallback without auto-fit
• fix: preserve BF16 embedding weights for get_rows
• fix: handle invalid option numbers
• feat: expose the loaded model version name through the public API

master-857-7f986a9:

• feat: add SenseNova U1.5 support

master-859-7f410a3

• fix: reuse graph plans when scale parameters change
• feat: add linear and attention scale overrides

On top of #2457 .

[wbruna]

master-866-42d6c0a:

• feat: preserve explicit backend assignments during auto-fit
• fix: guard GPU memory capacity and propagate encoding failures
• fix: bound plain-text runs in parse_prompt_attention regex
• feat: add Wan2.2 S2V (audio+img-to-video) support
• fix: validate vision projector output dim against LLM hidden size
• feat: Add generation parameters into video metadata