Save in-progress keysat integration and StartOS 0.4 work

Snapshot of the working tree before cleanup. Captures:
- Keysat licensing: server/license.js, /api/license/* endpoints in
  server/index.js, activation modal in public/index.html, embedded
  Ed25519 issuer key (assets/issuer.pub).
- StartOS 0.4 expansion: setApiKey action, version files v0.1.1
  through v0.1.15, file-models/config.json.ts, manifest updates.
- Self-hosted registry server (startos-registry/).
- Build/deploy scripts (bin/bump-version.sh, bin/deploy.sh, vendored
  yt-dlp binary), .gitignore, .deploy.env.example.
- Recent design docs (KEYSAT_INTEGRATION.md, UPGRADE-DESIGN.md) —
  retained here so they remain recoverable when removed in the
  follow-up cleanup commit.

startos-registry/node_modules/object-inspect/test/err.js

@@ -0,0 +1,48 @@
+var test = require('tape');
+var ErrorWithCause = require('error-cause/Error');
+
+var inspect = require('../');
+
+test('type error', function (t) {
+    t.plan(1);
+    var aerr = new TypeError();
+    aerr.foo = 555;
+    aerr.bar = [1, 2, 3];
+
+    var berr = new TypeError('tuv');
+    berr.baz = 555;
+
+    var cerr = new SyntaxError();
+    cerr.message = 'whoa';
+    cerr['a-b'] = 5;
+
+    var withCause = new ErrorWithCause('foo', { cause: 'bar' });
+    var withCausePlus = new ErrorWithCause('foo', { cause: 'bar' });
+    withCausePlus.foo = 'bar';
+    var withUndefinedCause = new ErrorWithCause('foo', { cause: undefined });
+    var withEnumerableCause = new Error('foo');
+    withEnumerableCause.cause = 'bar';
+
+    var obj = [
+        new TypeError(),
+        new TypeError('xxx'),
+        aerr,
+        berr,
+        cerr,
+        withCause,
+        withCausePlus,
+        withUndefinedCause,
+        withEnumerableCause
+    ];
+    t.equal(inspect(obj), '[ ' + [
+        '[TypeError]',
+        '[TypeError: xxx]',
+        '{ [TypeError] foo: 555, bar: [ 1, 2, 3 ] }',
+        '{ [TypeError: tuv] baz: 555 }',
+        '{ [SyntaxError: whoa] message: \'whoa\', \'a-b\': 5 }',
+        'cause' in Error.prototype ? '[Error: foo]' : '{ [Error: foo] [cause]: \'bar\' }',
+        '{ [Error: foo] ' + ('cause' in Error.prototype ? '' : '[cause]: \'bar\', ') + 'foo: \'bar\' }',
+        'cause' in Error.prototype ? '[Error: foo]' : '{ [Error: foo] [cause]: undefined }',
+        '{ [Error: foo] cause: \'bar\' }'
+    ].join(', ') + ' ]');
+});