[Feature] Auto-fill restaurant info via Google Maps Places API

[ryanlinjui]

Description

Use the GPS coordinates already captured in each note to query the Google Maps Places API (Nearby Search or Place Details) and automatically populate the restaurant's correct name, address, and other details.

Current Behavior

Users must manually type the restaurant name and address. The app already uses the Google Maps SDK for map display and has GPS coordinates per note, but doesn't leverage Places API.

Expected Behavior

• When creating/editing a note, offer an option to auto-fill restaurant info based on GPS coordinates
• Query Google Maps Places API to find nearby restaurants at the note's location
• Auto-populate: restaurant name, address, phone, business hours

Notes

• Google Maps SDK is already integrated; Places API requires additional setup (API key scope, GMSPlacesClient)
• Consider showing a list of nearby candidates if multiple restaurants are found at the location