feat: Implement block deletion handling in WebSocket message processing

client/src/store/turtleStore.js

@@ -134,6 +134,16 @@ export const useTurtleStore = create((set, get) => ({
               }
             }));
           }
+        } else if (data.type === 'block_deleted') {
+          // Remove a block from the world map (turtle moved into it)
+          if (data.x !== undefined && data.y !== undefined && data.z !== undefined) {
+            set(state => {
+              const key = `${data.x},${data.y},${data.z}`;
+              return {
+                worldBlocks: state.worldBlocks.filter(b => `${b.x},${b.y},${b.z}` !== key)
+              };
+            });
+          }
         }
       } catch (error) {
         console.error('Error processing message:', error);