Enhance data type (#378)

.changeset/selfish-tips-lie.md

...ates/components/engines/python/agent/tools/interpreter.py

.../components/engines/typescript/agent/tools/interpreter.ts

...ates/components/llamaindex/typescript/documents/helper.ts

...ates/components/llamaindex/typescript/documents/upload.ts

...components/llamaindex/typescript/streaming/annotations.ts

templates/components/routers/python/sandbox.py

...reaming/express/src/controllers/chat-upload.controller.ts

...es/types/streaming/fastapi/app/api/routers/chat_config.py

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

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

...s/types/streaming/fastapi/app/engine/utils/file_helper.py

templates/types/streaming/fastapi/app/services/file.py

...lates/types/streaming/nextjs/app/api/chat/upload/route.ts

...es/streaming/nextjs/app/components/ui/chat/chat-input.tsx

...nextjs/app/components/ui/chat/chat-message/chat-files.tsx

...xtjs/app/components/ui/chat/chat-message/chat-sources.tsx

...streaming/nextjs/app/components/ui/chat/hooks/use-file.ts

...es/types/streaming/nextjs/app/components/ui/chat/index.ts

...s/streaming/nextjs/app/components/ui/document-preview.tsx