What's the best way to handle existing translations with Localazy CLI?

Localazy CLI provides several methods for importing existing translations:

• Use autodetectLang variable to automatically detect language from file paths/names
• Explicitly specify languages in your configuration
• Use groups to separate source language uploads from existing translations

Basic configuration can look like this:

{
    "upload": {
        "files": [
            {
                "pattern": "src/locales/en/*.json",
                "lang": "inherited"
            },
            {
                "group": "existing",
                "pattern": "src/locales/*/*.json",
                "excludes": ["src/locales/en/*.json"],
                "lang": "${autodetectLang}"
            }
        ]
    }
}

This setup lets you run localazy upload for regular source updates and localazy upload existing for one-time import of existing translations.