Function sqlite_objs_vfs_register 

pub unsafe extern "C" fn sqlite_objs_vfs_register(
    makeDefault: c_int,
) -> c_int

Register the “sqlite-objs” VFS.

Reads configuration from environment variables:

• AZURE_STORAGE_ACCOUNT
• AZURE_STORAGE_CONTAINER
• AZURE_STORAGE_SAS (checked first)
• AZURE_STORAGE_KEY (fallback)

If makeDefault is non-zero, this VFS becomes the default. Returns SQLITE_OK (0) on success, or an appropriate error code.