Fix HF Spaces metadata: change colorFrom from black to gray

Configure for HuggingFace Spaces Docker deployment - Add Dockerfile, .dockerignore, update README with HF metadata, optimize requirements.txt

Initial commit: AI Code Analyzer with fine-tuned model support

Remove Google Gemini support - keep only 3 models (OpenAI, Anthropic, DeepSeek)

Fix: Prevent Streamlit crash when no API keys are set on Render

Initial commit: LLM Code Analyzer with multi-model support