Update app.py

app.py

@@ -79,7 +79,7 @@ class StoreLocator:
         self.spatial_index = self._build_spatial_index()
 
     @lru_cache(maxsize=50)     
-    def initialize_graph(self, center_point, dist=10000):  # Reduced distance for memory optimization
+    def initialize_graph(self, center_point, dist=30000):  # Reduced distance for memory optimization
         """Initialize road network graph with caching"""
         cache_key = f"{center_point[0]}_{center_point[1]}"
         if cache_key in self.graph_cache: