Modify Dockerfile to install git-lfs and zstd

feat: Enhance agent robustness by separating base and fallback LLMs, update Ollama model to 7B, and improve Docker startup reliability.

feat: Enhance LLM resilience with a multi-provider fallback system, upgrade the default Ollama model to 7B, and improve vector store relevance score calculation.

changed to use huggingface serverless endpoint with local CPU as a fallback

pdate src/app.py to prepend the sqlite:/// prefix to the database path.

added zstd compression to unpack binaries

install global tools as root user

deployment 1.0