Checklist
1. Vector database path 
2. set GOOGLE_API_KEY in env variable
```bash
export GOOGLE_API_KEY="<your_API_KEY>"
```
3. Ensure root path added to PYTHONPATH

4. Download Image data from [here](https://hkaidlab-my.sharepoint.com/:u:/g/personal/kcpang_aidlab_hk/EW4Ve7pPWgZJn-781tdjkCQBaafaGMBKcDXXzHcR1QILzQ?e=FU7RfK) and put it in "./data/image_data"

5. Download chromadb local database file from [here](https://hkaidlab-my.sharepoint.com/:f:/g/personal/kcpang_aidlab_hk/EsEZNodPI0hBuKDTVDlL1l0BO0Jwt4oVO23bOzVjO3FaPQ?e=TgjP4D) and put it in "./data/db"