Fix bad descriptor in wsssh by sending buffered server response immediately...

Fix bad descriptor in wsssh by sending buffered server response immediately after accepting SSH client connection

- Send server's SSH version response immediately to the forked SSH process to prevent timeout
- This ensures the SSH version exchange completes before the client closes the connection

wssshtools/wsssh.c

@@ -472,6 +472,23 @@ int main(int argc, char *argv[]) {
     // Set the accepted socket with mutex protection
     pthread_mutex_lock(&tunnel_mutex);
     active_tunnel->local_sock = accepted_sock;
+
+    // Send any buffered data to the SSH client immediately
+    if (active_tunnel->incoming_buffer && active_tunnel->incoming_buffer->used > 0) {
+        if (config.debug) {
+            printf("[DEBUG - Tunnel] Sending %zu bytes of buffered server response to SSH client\n", active_tunnel->incoming_buffer->used);
+            fflush(stdout);
+        }
+        ssize_t sent = send(accepted_sock, active_tunnel->incoming_buffer->buffer, active_tunnel->incoming_buffer->used, 0);
+        if (sent > 0) {
+            frame_buffer_consume(active_tunnel->incoming_buffer, sent);
+            if (config.debug) {
+                printf("[DEBUG] Sent %zd bytes of buffered server response to SSH client\n", sent);
+                fflush(stdout);
+            }
+        }
+    }
+
     pthread_mutex_unlock(&tunnel_mutex);
 
     if (config.debug) {