Add timeout to response reading to prevent hanging on wsssht

- Use select with 10-second timeout in response read loop
- Prevents proxy threads from hanging indefinitely waiting for data

wssshd2/web_proxy.c

@@ -596,7 +596,25 @@ static int handle_proxy_request(int client_fd, wssshd_state_t *state, const wsss
     // Read response from wsssht daemon and forward to client
     char buffer[8192];
     ssize_t total_sent = 0;
+    fd_set read_fds;
+    struct timeval tv;
     while (1) {
+        FD_ZERO(&read_fds);
+        FD_SET(tunnel_fd, &read_fds);
+        tv.tv_sec = 10; // 10 second timeout
+        tv.tv_usec = 0;
+
+        int activity = select(tunnel_fd + 1, &read_fds, NULL, NULL, &tv);
+        if (activity < 0) {
+            if (errno == EINTR) continue;
+            break;
+        }
+        if (activity == 0) {
+            // Timeout
+            printf("[WEB-PROXY] Timeout waiting for response from wsssht\n");
+            break;
+        }
+
         ssize_t bytes_recv;
         if (use_ssl) {
             bytes_recv = SSL_read(tunnel_ssl, buffer, sizeof(buffer));