* chore(models): swap gemini-3-flash-preview for gemini-3.5-flash in OpenRouter + Nous lists * chore(models): regenerate model-catalog.json for gemini-3.5-flash swap
* chore(models): swap gemini-3-flash-preview for gemini-3.5-flash in OpenRouter + Nous lists * chore(models): regenerate model-catalog.json for gemini-3.5-flash swap