Adds a real-data LocalNetworkWidget to the HUD showing the Mac's approximate
location (city/region via CLGeocoder reverse-geocode), the user's phone presence
on the LAN (● HERE / ○ AWAY via Bonjour NWBrowser matching configured name
patterns), and a live list of Bonjour-advertising LAN devices (iPhones, iPads,
Macs, Apple TVs, HomePods, etc.) with a total count.
All data is real — NWBrowser browses 13 service types continuously;
CoreLocation supplies GPS coordinates reverse-geocoded to a place name.
On first launch, macOS will prompt for Location Services permission; the widget
gracefully shows "(awaiting permission)" until granted. Bonjour discovery is
async — the device list starts empty and populates within a few seconds.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>