v1.0.2

• Add a live web demo (GitHub Pages) plus a demo GIF, live-demo link, and
  screenshots: entry so it shows on pub.dev.
• Add pub.dev topics: (cursor, mouse, pointer, ui, desktop) for discoverability.
• Hide implementation-only libraries (*_web, *_method_channel,
  *_platform_interface) from the generated API docs via dartdoc_options.yaml.
• No runtime code changes.