update README.md

update README.md

update README.md

update README.md

update README.md

update backend/app/api/index.py

create vercel.json

create render.yaml

update backend/rag/requirements.txt

create backend/.env

create backend/app/services/llm_service.py

update backend/app/services/gigachat_service.py

delete scripts/PANDAS_CHEATSHEET.md

delete scripts/MATPLOTLIB_CHEATSHEET.md

delete scripts/CODE_REQUIREMENTS.md

delete scripts/ASSIGNMENTS_README.md

Запрос на слияние 'newnew' (#1) из newnew в master

update spec/codex.md

update spec/codex.md

update README.md

update spec/codex.md

update spec/codex.md

update spec/codex.md