Merge remote-tracking branch 'upstream/main' into fix/houston-cctv-pack

# Conflicts:
#	docs/CURRENT-STATE.md

.env.example

@@ -266,6 +266,7 @@ AISSTREAM_API_KEY=
 # CCTV_FORCE_AUSTIN=                                   # force live default sources when a source-pack JSON is configured
 
 # Optional: comma-separated Overpass URLs; use only instances you run or pay for.
+# Also enables voice place search (osm_query, "hospitals in Kathmandu").
 OVERPASS_UPSTREAMS=
 
 # Optional: place-lookup endpoints. Lookups try bundled data first, then the
@@ -298,3 +299,8 @@ OVERPASS_UPSTREAMS=
 # frame-ancestors sources such as "https://example.com", or * for any page.
 # Unset, no page may frame it. Other pages of the app can never be framed.
 # GEV_EMBED_FRAME_ANCESTORS=
+
+# Optional keyless Radio Browser coverage: up to 8 ISO alpha-2 countries.
+# Each reserves up to 40 stations within the existing 750-station directory.
+# Restart after changing. Leave blank for the existing global selection.
+# RADIO_PRIORITY_COUNTRIES=IN,PL