SamoilenkoVadym 2e6597ee08 Add admin analytics and update OpenAI integration ... Backend changes: - Add admin analytics endpoints for daily usage per user - Add GET /tokens/daily-users endpoint with date/user breakdown - Update OpenAI SDK from 1.58.1 to 2.6.1 - Switch from Assistants API to Responses API with file_search tool - Implement strict RAG-only system instructions - Add citation validation to prevent hallucinations - Add get_daily_usage_by_user repository method - Add DailyUserUsage schema for admin analytics Frontend changes: - Implement comprehensive admin usage dashboard - Add overall system statistics (users, conversations, messages, tokens, cost) - Add daily usage table with per-user breakdown - Add chat state clearing on logout and user change for isolation - Center welcome message and input field in chat interface - Add admin-specific styling for usage analytics tables - Fix useCallback dependencies to prevent infinite loops Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>		2026-01-27 21:36:36 +00:00
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api.ts	Add admin analytics and update OpenAI integration	2026-01-27 21:36:36 +00:00
authConfig.ts	Implement frontend MSAL authentication and chat state management	2026-01-27 14:36:01 +00:00