{
  "scenario": "English mobile client receives resolved user locale from /me",
  "request": {
    "path": "/api/v1/me?locale=en",
    "headers": {
      "Accept-Language": "en-US,en;q=0.9,tr;q=0.7",
      "Cookie": "better-auth.session_token=<redacted>"
    }
  },
  "expected": {
    "ok": true,
    "data": {
      "localization": {
        "language": "en",
        "portalLocale": null,
        "resolvedLocale": "en",
        "requestedLocale": "en",
        "defaultLocale": "tr",
        "source": "query",
        "fallbackChain": ["en", "tr"]
      }
    }
  }
}