feat(runtime): add SSH command bridge

ui/app.js

@@ -185,6 +185,27 @@ function wireTerminalActions() {
   if (button) button.addEventListener('click', runLocalTerminalCommand);
 }
 
+async function runSshCommand() {
+  const host = document.getElementById('ssh-host').value;
+  const user = document.getElementById('ssh-user').value || null;
+  const command = document.getElementById('ssh-command').value;
+  const output = document.getElementById('ssh-output');
+  output.textContent = 'Connecting…';
+  try {
+    const tauri = window.__TAURI__?.core;
+    if (!tauri) throw new Error('Tauri bridge unavailable in browser preview');
+    const result = await tauri.invoke('run_ssh_command', { host, user, port: 22, command });
+    output.textContent = [`ssh ${host} ${command}`, `exit ${result.exit_code}`, result.stdout, result.stderr].filter(Boolean).join('\n');
+  } catch (error) {
+    output.textContent = String(error);
+  }
+}
+
+function wireSshActions() {
+  const button = document.getElementById('run-ssh');
+  if (button) button.addEventListener('click', runSshCommand);
+}
+
 async function boot() {
   const [dashboard, features] = await Promise.all([
     invokeOrFallback('wallet_dashboard', fallbackDashboard),
@@ -195,6 +216,7 @@ async function boot() {
   wireVaultActions();
   wireSettingsActions();
   wireTerminalActions();
+  wireSshActions();
 }
 
 boot();