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/math-intrinsics/constants/maxArrayLength.d.ts

@@ -0,0 +1,3 @@
+declare const MAX_ARRAY_LENGTH: 4294967295;
+
+export = MAX_ARRAY_LENGTH;

startos-registry/node_modules/math-intrinsics/constants/maxArrayLength.js

@@ -0,0 +1,4 @@
+'use strict';
+
+/** @type {import('./maxArrayLength')} */
+module.exports = 4294967295; // Math.pow(2, 32) - 1;

startos-registry/node_modules/math-intrinsics/constants/maxSafeInteger.d.ts

@@ -0,0 +1,3 @@
+declare const MAX_SAFE_INTEGER: 9007199254740991;
+
+export = MAX_SAFE_INTEGER;

startos-registry/node_modules/math-intrinsics/constants/maxSafeInteger.js

@@ -0,0 +1,5 @@
+'use strict';
+
+/** @type {import('./maxSafeInteger')} */
+// eslint-disable-next-line no-extra-parens
+module.exports = /** @type {import('./maxSafeInteger')} */ (Number.MAX_SAFE_INTEGER) || 9007199254740991; // Math.pow(2, 53) - 1;

startos-registry/node_modules/math-intrinsics/constants/maxValue.d.ts

@@ -0,0 +1,3 @@
+declare const MAX_VALUE: 1.7976931348623157e+308;
+
+export = MAX_VALUE;

startos-registry/node_modules/math-intrinsics/constants/maxValue.js

@@ -0,0 +1,5 @@
+'use strict';
+
+/** @type {import('./maxValue')}  */
+// eslint-disable-next-line no-extra-parens
+module.exports = /** @type {import('./maxValue')}  */ (Number.MAX_VALUE) || 1.7976931348623157e+308;