fix: send ssh username to guacd (default root) for console SSH

web/app/servers/[id]/console/page.tsx

@@ -19,6 +19,7 @@ export default function ServerConsolePage() {
 
     const [protocol, setProtocol] = useState<string>(searchParams.get("protocol") || "");
     const [keyId, setKeyId] = useState<string>("");
+    const [sshUsername, setSshUsername] = useState<string>("root");
     const [rdpUsername, setRdpUsername] = useState("");
     const [rdpPassword, setRdpPassword] = useState("");
     const [connecting, setConnecting] = useState(false);
@@ -72,6 +73,7 @@ export default function ServerConsolePage() {
             };
             if (protocol === "ssh") {
                 body.key_id = keyId || undefined;
+                body.ssh_username = sshUsername || undefined;
             } else if (protocol === "rdp") {
                 body.rdp_username = rdpUsername || undefined;
                 body.rdp_password = rdpPassword || undefined;
@@ -152,6 +154,14 @@ export default function ServerConsolePage() {
 
                         {protocol === "ssh" && (
                             <div>
+                                <label className="mb-1.5 block text-sm font-medium text-text-secondary">SSH Username</label>
+                                <input
+                                    type="text"
+                                    value={sshUsername}
+                                    onChange={(e) => setSshUsername(e.target.value)}
+                                    placeholder="root"
+                                    className="mb-3 w-full rounded-lg border border-border bg-surface-2 px-3 py-2 text-sm text-text-primary focus:border-accent/50 focus:outline-none focus:ring-1 focus:ring-accent/30"
+                                />
                                 <label className="mb-1.5 block text-sm font-medium text-text-secondary">SSH Key</label>
                                 <select
                                     value={keyId}