use node: prefix for requires

mostly because code is being autogenerated by all the AI stuff using
this prefix. it's also used in the stack trace.

src/docker.js

@@ -31,16 +31,16 @@ exports = module.exports = {
 };
 
 const apps = require('./apps.js'),
-    assert = require('assert'),
+    assert = require('node:assert'),
     BoxError = require('./boxerror.js'),
     constants = require('./constants.js'),
     dashboard = require('./dashboard.js'),
     debug = require('debug')('box:docker'),
     Docker = require('dockerode'),
     dockerRegistries = require('./dockerregistries.js'),
-    fs = require('fs'),
+    fs = require('node:fs'),
     mailServer = require('./mailserver.js'),
-    os = require('os'),
+    os = require('node:os'),
     paths = require('./paths.js'),
     promiseRetry = require('./promise-retry.js'),
     services = require('./services.js'),