🔊 SA3 参数修复 — LCM 蒸馏参数 vs 错误 Euler 参数

根因:SA3 Medium 是蒸馏模型,必须用 lcm/10步/cfg=1 + ModelSamplingAuraFlow(shift=1.0)

修复内容:
❌ 旧(错误)✅ 新(正确)
samplereulerlcm
steps5010
cfg7.01.0
ModelSampling无AuraFlow shift=1.0
CLIPLoader typestable_audiostable_diffusion
prompt简单描述TrackType: SFX + 详细描述
✅ 正确参数 (LCM/10/cfg=1/AuraFlow)
Rain (正确参数)
TrackType: SFX + 雨打铁皮屋顶 | lcm/10步/cfg=1/AuraFlow | 10.0s | flat=0.1884
Whoosh (正确参数)
TrackType: SFX + whoosh | lcm/10步/cfg=1/AuraFlow | 5.0s | flat=0.1124
Door (正确参数)
关门声 | lcm/10步/cfg=1/AuraFlow | 5.0s | flat=0.0744
Boom (正确参数)
低频轰鸣 | lcm/10步/cfg=1/AuraFlow | 5.0s | flat=0.0266
Forest (正确参数)
森林鸟鸣 | lcm/10步/cfg=1/AuraFlow | 10.0s | flat=0.1872
❌ 旧错误参数 (euler/50/cfg=7)
Rain (旧错误参数)
euler/50步/cfg=7 ❌ 蒸馏模型错误配置 | 5.0s | flat=0.3261
Whoosh (旧错误参数)
euler/50步/cfg=7 ❌ 蒸馏模型错误配置 | 5.0s | flat=0.1374