The `DB_PATH` constant, which is used for defining the storage root for all
workspace data, is defined in `config.py`:

    DB_PATH = Path(__file__).parent / ".brain"

It resolves to `zerikai_memory/.brain/`. This path is platform-agnostic as the
`Path` object in Python handles different operating systems' file paths.

Sources: config.py:67, main.py:1034, main.py:818, README.md:375, main.py:1796