f0c6d0752a
Add Novita AI as a new model provider supporting chat, embedding, and VLLM model types via OpenAI-compatible API endpoint. - Add NovitaProvider implementation with OpenAI-compatible API - Register ProviderNovita in provider registry - Add ModelSourceNovita constant - Add Novita to frontend fallback provider options - Add i18n translations for en-US, zh-CN, ru-RU, ko-KR