073c57872a
Add deepseek/deepseek-v4.1-flash to OPENROUTER_MODELS (Nous list derives from it), regenerate the docs manifest, and give the slug its own 1M context entry and 600s reasoning-stale floor — the longest-key-first scan otherwise lands the new slug on the 128K `deepseek` catch-all and no floor. Live probed on both routes: echoed model matches, usage.cost billed.