feat(voice): harden Gemini Live provider integration

scripts/setup-doctor.mjs

@@ -16,6 +16,7 @@ export const CREDENTIALS = Object.freeze([
   { name: 'GOOGLE_MAPS_SERVER_API_KEY', label: 'Google Places / Street View server', keychain: [] },
   { name: 'CESIUM_ION_TOKEN', label: 'Cesium ion', keychain: [['cesium-ion', 'token']] },
   { name: 'OPENAI_API_KEY', label: 'OpenAI voice', keychain: [['openai-api', 'api-key']] },
+  { name: 'GEMINI_API_KEY', label: 'Gemini voice', keychain: [] },
   { name: 'AISSTREAM_API_KEY', label: 'AISStream vessels', keychain: [['aisstream-api', 'api-key']] },
   { name: 'FIRMS_MAP_KEY', label: 'NASA FIRMS fires', keychain: [['firms-map', 'map-key']] },
   { name: 'TOMTOM_API_KEY', label: 'TomTom traffic', keychain: [['tomtom-api', 'api-key']] },
@@ -176,9 +177,9 @@ export function buildCapabilitySummary(
         ? 'Google Photorealistic 3D Tiles through Cesium ion; Bing and world-terrain stacks available'
         : 'Esri World Imagery (keyless satellite basemap) with keyless terrain',
     flights,
-    voice: configured('OPENAI_API_KEY')
+    voice: configured('OPENAI_API_KEY') || configured('GEMINI_API_KEY')
       ? 'available'
-      : 'off until an OpenAI key is added, or a Codex ChatGPT sign-in is selected in Provider Settings (experimental)',
+      : 'off until an OpenAI or Gemini key is added, or a configured OpenAI provider is selected in Provider Settings',
     vessels: configured('AISSTREAM_API_KEY') ? 'live AISStream feed' : 'off until an AISStream key is added',
     fires: configured('FIRMS_MAP_KEY') ? 'live NASA FIRMS feed' : 'off until a FIRMS key is added',
     traffic: configured('TOMTOM_API_KEY') ? 'live TomTom flow' : 'built-in traffic simulation',