Function extractGeo

extractGeo(input: DocumentInput): GeoMetadata
Extract geographic metadata from HTML.
Parameters
- input: DocumentInput
  Parsed HTML document or raw HTML string
Returns GeoMetadata
Geographic metadata
Remarks
Extracts geographic location information including coordinates, place names, and region codes from meta tags.
Example
```
// With parsed document (recommended for multiple extractions)
const doc = parseHTML(htmlString);
const geo = extractGeo(doc);

// Or directly with HTML string
const geo = extractGeo(htmlString);
```
- Defined in src/metadata/geo/extract.ts:34