UPSTREAM PR #19283: Support Step3.5-Flash#1146

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loci-dev wants to merge 13 commits intomainfrom

loci/pr-19283-pr-step3.5-flash

Commits on Feb 3, 2026

Support Step3.5-Flash
lvyichen
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fix: norm.weight + 1 (HF zero_centered=true)
lvyichen
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Commits on Feb 4, 2026

Commits on Feb 5, 2026

Apply suggestions from code review
lvyichen
committed
Apply suggestions from code review
lvyichen
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disabled KV shifting for LLM_ARCH_STEP35
lvyichen
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