- Embed web UI (index.html, app.js, style.css) via go:embed
- Title: 'IP Location & Status' instead of 'check-ip'
- 'Show my IP Info' link for lookups of the visitor's own IP
- Domain resolution with resolved_from field in JSON
- Richer GeoIP fields: region ISO, continent, coordinates, traits, etc.
- /api/raw debug endpoint for raw MaxMind records
- net/geoip: expand Info struct and add LookupRaw method
Add a Go package for reading MaxMind GeoLite2 City and ASN databases.
- ParseConf: parses geoipupdate-style config files (AccountID,
LicenseKey, EditionIDs, DatabaseDirectory)
- Databases: holds open City + ASN readers; Open() loads both
editions from a directory, extracting .mmdb from tar.gz in memory
without writing to disk
- FindTarGz: resolves cache paths, preferring *_LATEST.tar.gz
- Lookup: returns city, region, country, ASN, and AS org for an IP
- DownloadBase constant, TarGzName helper, DefaultConfPaths and
DefaultCacheDir conveniences
Integration tests verify download and conditional-get freshness.
