Qwen3.5/Qwen3-Next architecture strings contain the substring "qwen3", so the
broad qwen3 match claimed them for the generic parser and qwen3-coder
renderer, whose template doesn't frame the thinking block — an empty
<think></think> leaked into content and think=false was ignored. Match the
family first via isQwen35Family so the parser, renderer, and
thinking-capability checks share one variant list.
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