feat: 4대 골드 시나리오 RAG 품질 개선 및 Gradio UI 폰트 시인성 고도화

fix: upgrade Gradio to 6.14.0 in README.md and requirements.txt to solve Jinja2 unhashable dict TypeError

fix: resolve Gradio ValueError by explicitly binding server to 0.0.0.0 and port 7860 in Hugging Face Spaces

fix: resolve Hugging Face Spaces connection ValueError and Jinja2 serialization crash

fix: resolve Jinja2 unhashable dict theme crash and loopback validation failure in Hugging Face Spaces

fix: dynamically assign theme parameter based on Gradio major version to support both local 6.x and remote 4.x

fix: resolve vulture and mypy override signature conflict for custom template format

fix: resolve vulture unused variable in CustomRagTemplate and integrate vulture in local hooks

docs: update AGENTS.md with import-time client warning and fix CI coverage threshold

fix: lazy initialize OpenAI models to prevent import-time collection crash in CI/CD

chore: strictly enforce local validation rules via pre-commit

fix: explicit type annotation for LazyGraphRAG internal state to fix global mypy errors

fix: resolve Gradio 6.0 theme parameter TypeError and remove redundant Blocks context causing Jinja2 unhashable dict crash

fix: remove deprecated gradio kwargs causing mypy errors

fix: resolve mypy type error in LazyGraphRAG and Gradio caching crash

feat: implement fail-fast DB diagnostic check at Gradio application startup

refactor: eliminate import-time DB connection anti-pattern with LazyGraphRAG proxy and local driver initialization

fix: resolve CI test ServiceUnavailable import crash and remove run_pipeline.py

fix: remove type='messages' from ChatInterface to resolve Gradio format mismatch

test: configure pytest pythonpath to resolve src module import errors

fix: implement robust neo4j driver fallback with verify_connectivity to prevent AuthError

fix: cast BaseMessage content to str to resolve mypy union-attr errors and update agents rule

fix: pin huggingface_hub<1.0.0 to resolve HfFolder import error in Gradio 4

docs: add rule to run mypy locally before commit

fix: resolve ruff lint errors and set huggingface python version to 3.10 to fix audioop error

chore: remove deprecated chunk text test suite

feat: implement Neo4j Client fallback auth, add disabled daily cron pipeline and update checklist

style: 린트 포맷팅 자동 적용 및 프로젝트 기획안(AGENTS.md, README.md) 보완

refactor: 린트 검증(Ruff) 최적화 및 룰 필터링 설정 추가

feat: 프로젝트 초기 구성 및 GraphRAG 테스트 파이프라인 연동