Align product copy, API docs, Swagger descriptions, and i18n strings
with workspace terminology while keeping internal tenant identifiers
and headers unchanged for API compatibility.
- Removed the `thinkingModelId` and `rerankModelId` from agent configuration, streamlining the settings structure.
- Introduced a new `conversationModels` interface to manage summary and rerank model IDs.
- Updated related UI components and API logic to accommodate the changes in agent configuration.
- Enhanced localization for new conversation model settings in English, Russian, and Chinese.