- Add Gemini option to ai_provider select (alongside OpenAI/Mock) - Show/hide OpenAI vs Gemini fields dynamically via aiProviderChange() - Add gemini_api_key and gemini_model fields to the form - Add openai_api_key field in bot-config (per-company override) - Save handler now persists gemini_api_key, gemini_model, openai_api_key Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>