fix: preserve DeepSeek thinking events

wip: eval harness + public docs bundle; relocate eval docs into evals/ (#10)

build(graphrag): make graphrag an eval-only optional extra (keep prod image lean)

graphrag: scaffold true GraphRAG retriever arm (opt-in, default unchanged)

Refactor project structure and update dependencies

Renamed 'scripts' folder to 'app', removed mongo and instructor libraries

Update project structure

Refactor logging implementation and remove logfire dependency

Update dependencies in pyproject.toml and uv.lock, including pytest and version upgrades for several packages. Modify .gitignore to exclude additional data directories and files. Enhance source_versions.json with new versioning information for various libraries.

Add FastAPI and Uvicorn dependencies, implement API for chat functionality, and introduce chat service and types. Enhance project structure with new scripts for handling chat events and responses, and add tests for API and Gradio presenter functionality.

Modernize RAG indexing, streaming chat, and data workflows

lock version for dependencies