separate template types and components in file system

...es/streaming/express/src/controllers/llamaindex-stream.ts

templates/types/streaming/express/src/routes/chat.route.ts

templates/types/streaming/express/tsconfig.json

templates/types/streaming/fastapi/README-template.md

templates/types/streaming/fastapi/app/__init__.py

templates/types/streaming/fastapi/app/api/__init__.py

...lates/types/streaming/fastapi/app/api/routers/__init__.py

templates/types/streaming/fastapi/app/api/routers/chat.py

templates/types/streaming/fastapi/app/utils/__init__.py

templates/types/streaming/fastapi/app/utils/index.py

templates/types/streaming/fastapi/app/utils/json.py

templates/types/streaming/fastapi/data/brk-2022.pdf

templates/types/streaming/fastapi/gitignore

templates/types/streaming/fastapi/main.py

templates/types/streaming/fastapi/pyproject.toml

templates/types/streaming/fastapi/tests/__init__.py

templates/types/streaming/nextjs/.env.example

templates/types/streaming/nextjs/README-template.md

.../types/streaming/nextjs/app/api/chat/llamaindex-stream.ts

templates/types/streaming/nextjs/app/api/chat/route.ts