Integrate Novita AI as exclusive inference provider - Add Novita AI API integration with DeepSeek-R1-Distill-Qwen-7B model - Remove all local model dependencies - Optimize token allocation for user inputs and context - Add Anaconda environment setup files - Add comprehensive test scripts and documentation

Fix UnboundLocalError: remove redundant os import in exception handler

Improve database path handling with Docker detection and fallback to /tmp

Fix database path issue for Docker/HF Spaces - use /tmp for writable directory

Initial commit: Research AI Assistant API