- gemini_model is now a saved config field (default: gemini-2.0-flash)
- Config panel shows a text input to set the model name
- probarGemini() reads the configured model and on error calls ListModels
to show exactly which model names are available for the account's API key
- GeminiIntentService and GeminiVisionService build the URL from config at runtime
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>