system: return activation time if we have it

src/system.js

@@ -26,6 +26,7 @@ const apps = require('./apps.js'),
     debug = require('debug')('box:disks'),
     df = require('./df.js'),
     docker = require('./docker.js'),
+    eventlog = require('./eventlog.js'),
     fs = require('fs'),
     logs = require('./logs.js'),
     notifications = require('./notifications.js'),
@@ -287,11 +288,14 @@ async function getInfo() {
     const sysVendor = safe.fs.readFileSync('/sys/devices/virtual/dmi/id/sys_vendor', 'utf8');
     const productName = safe.fs.readFileSync('/sys/devices/virtual/dmi/id/product_name', 'utf8');
 
+    const activationTime = (await eventlog.getActivationEvent())?.creationTime || null;
+
     return {
-        sysVendor,
-        productName,
+        sysVendor: sysVendor.trim(),
+        productName: productName.trim(),
         uptimeSecs,
-        rebootRequired
+        rebootRequired,
+        activationTime
     };
 }