fix(docker): replace deprecated stop flags with version-aware ones

Store each server's Docker version and build stop commands via
dockerStopCommand() so newer Docker uses --timeout instead of
deprecated --time/-t. Also show Docker version in server details.

app/Actions/Proxy/StopProxy.php

@@ -24,7 +24,7 @@ class StopProxy
             }
 
             instant_remote_process(command: [
-                "docker stop -t=$timeout $containerName 2>/dev/null || true",
+                dockerStopCommand($timeout, $containerName, $server).' 2>/dev/null || true',
                 "docker rm -f $containerName 2>/dev/null || true",
                 '# Wait for container to be fully removed',
                 'for i in {1..10}; do',