What's Changed

Google Maps geocoding provider

• Reverse geocode via Google Geocoding API, extracts structured address components
• Forward search with index-based PlaceIDs
• Rate limiter (50ms/req, burst 10), in-memory cache

Chain geocoder replacing fallback geocoder

• GEOCODE_PROVIDER now accepts comma-separated values (ex: here,google)
• Nominatim is always first, then providers are tried in order
• chainGeocoder replaces the old two-provider fallbackGeocoder
• describeProvider() for accurate startup logging

Provider-specific API keys

• New env vars: HERE_API_KEY, GOOGLE_API_KEY
• GEOCODE_API_KEY kept as legacy fallback via resolveKey()

Language parameter on ReverseGeocode

• ReverseGeocode now accepts lang string (was hardcoded "en")
• All providers default to "en" when empty
• Sync service passes "en", HTTP handlers can pass browser language

Rate limit handling improvements

• Nominatim ForwardSearch now has adaptive 429 handling (was missing)
• HERE ForwardSearch now returns descriptive 429 errors
• Shared adaptRateLimiter() method eliminates code duplication
• All ForwardSearch implementations default lang to "en"

Config/docs

• Documented chain format, provider-specific keys
• Added missing IMMICH_EXTERNAL_URL and DAWARICH_URL pass-through

Full Changelog: v1.0.6...v1.0.7