security improvement and bugs fixing; modify makefile

src/App.tsx

@@ -76,7 +76,7 @@ function App() {
   const [blenderResetKey, setBlenderResetKey] = useState(0);
 
   // Network blocking state
-  const [isNetworkBlocked, setIsNetworkBlocked] = useState(false);
+  const [isNetworkBlocked, setIsNetworkBlocked] = useState(true);
 
   // Entropy generation states
   const [entropySource, setEntropySource] = useState<'camera' | 'dice' | 'audio' | 'randomorg' | null>(null);
@@ -120,6 +120,16 @@ function App() {
     return () => clearInterval(interval);
   }, []);
 
+  useEffect(() => {
+    blockAllNetworks();
+    // setIsNetworkBlocked(true); // already set by default state
+  }, []);
+
+  useEffect(() => {
+    blockAllNetworks();
+    // setIsNetworkBlocked(true); // already set by default state
+  }, []);
+
 
 
   // Cleanup session key on component unmount