try higher quality

app.py

@@ -202,9 +202,9 @@ def pick_random_location(difficulty: str) -> Dict[str, float]:
 def street_view_image_url(lat: float, lng: float) -> str:
     if not GOOGLE_MAPS_API_KEY:
         # Fallback placeholder to avoid blank image when key is missing
-        return "https://picsum.photos/640/640"
+        return "https://picsum.photos/1200/800"
     return (
-        f"https://maps.googleapis.com/maps/api/streetview?size=640x640&location={lat},{lng}&fov=70&pitch=0&source=outdoor&key={GOOGLE_MAPS_API_KEY}"
+        f"https://maps.googleapis.com/maps/api/streetview?size=1200x800&location={lat},{lng}&fov=60&pitch=0&source=outdoor&key={GOOGLE_MAPS_API_KEY}"
     )