fixed syntax healthcheck

backend/src/routes/health.js

@@ -10,7 +10,14 @@ healthRouter.get('/', async (_req, res) => {
   const missing = missingEnvVars();
   const checks = {
     config: checkValue(!missing.length, missing.length ? `missing: ${missing.join(', ')}` : 'ok'),
-    commands: await checkCommands(['incus', 'zfs', 'zpool', 'restic', 'udevadm', 'dd']),
+    commands: await checkCommands({
+      incus: ['version'],
+      zfs: ['version'],
+      zpool: ['version'],
+      restic: ['version'],
+      udevadm: ['--version'],
+      dd: ['--version'],
+    }),
     zfsPool: await checkZfsPool(),
     zvol: await checkZvolAccess(),
     resticRepository: await checkResticRepository(),
@@ -22,8 +29,8 @@ healthRouter.get('/', async (_req, res) => {
 
 async function checkCommands(commands) {
   const results = {};
-  await Promise.all(commands.map(async (command) => {
-    results[command] = await checkCommand(command, ['--version']);
+  await Promise.all(Object.entries(commands).map(async ([command, args]) => {
+    results[command] = await checkCommand(command, args);
   }));
   const failed = Object.entries(results).filter(([, result]) => !result.ok);
   return {