Fix URL validation to support network hostnames without TLD

Fixes #1014

Problem

CLI rejects valid network hostnames like gateway or router with error: "Your url is invalid"

Solution

• Replace is-url package with native URL constructor
• Remove is-url and @types/is-url dependencies
• Use web standard URL validation instead of restrictive package

Changes

• bin/utils/url.ts: Replace isUrl() with new URL() in try-catch
• package.json: Remove is-url dependencies

Testing

✅ pake http://gateway --name GatewayApp now works
✅ All existing URLs still work
✅ only rejects invalid urls.
✅ Supports network hostnames without TLD