- Introduced GEMINI_API_KEY in setup and environment files.
- Updated SetupWizard to include Google Gemini as a supported LLM provider.
- Adjusted model selection logic to accommodate Gemini models.
- Modified billing and configuration files to handle Gemini model pricing and aliases.
- Updated documentation to reflect the addition of GEMINI_API_KEY.
- Added 'x-ai/grok-4' alias to xai/grok-4 model configuration
- Added OpenRouter x-ai model pricing support in constants generation
- Resolves LiteLLM 'LLM Provider NOT provided' errors in billing system
- Ensures proper token cost calculation for all Grok model variations
- Moved fallback model assignment to a dedicated function in `prepare_params`.
- Removed redundant fallback handling from `make_llm_api_call`.
- Updated model constants to include aliases for `xai/grok-4`.