feat: add Guacamole support for RDP, VNC, and Telnet connections

- Implemented WebSocket support for Guacamole in Nginx configuration.
- Added REST API endpoints for generating connection tokens and checking guacd status.
- Created Guacamole server using guacamole-lite for handling connections.
- Developed frontend components for testing RDP/VNC connections and displaying the remote session.
- Updated package dependencies to include guacamole-common-js and guacamole-lite.
- Enhanced logging for Guacamole operations.

docker/nginx.conf

@@ -200,6 +200,41 @@ http {
             proxy_next_upstream error timeout invalid_header http_500 http_502 http_503;
         }
 
+        # Guacamole WebSocket for RDP/VNC/Telnet
+        # ^~ modifier ensures this takes precedence over the regex location below
+        location ^~ /guacamole/websocket/ {
+            proxy_pass http://127.0.0.1:30007/;
+            proxy_http_version 1.1;
+
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection "upgrade";
+            proxy_set_header Host $host;
+            proxy_cache_bypass $http_upgrade;
+
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+
+            proxy_read_timeout 86400s;
+            proxy_send_timeout 86400s;
+            proxy_connect_timeout 10s;
+
+            proxy_buffering off;
+            proxy_request_buffering off;
+
+            proxy_next_upstream error timeout invalid_header http_500 http_502 http_503;
+        }
+
+        # Guacamole REST API
+        location ~ ^/guacamole(/.*)?$ {
+            proxy_pass http://127.0.0.1:30001;
+            proxy_http_version 1.1;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+        }
+
         location /ssh/tunnel/ {
             proxy_pass http://127.0.0.1:30003;
             proxy_http_version 1.1;