Add a human-friendly displayName ("Adobe App Builder") and a local "skills" path to plugins/app-builder/.cursor-plugin/plugin.json. Update README install instructions to create the local plugin directory and copy the plugin contents (mkdir -p + cp -R), and add a note to verify the plugin loaded in Cursor settings. These changes clarify local installation and expose the plugin's skills directory for Cursor distribution.
Add Cursor-native plugin manifest at plugins/app-builder/.cursor-plugin/plugin.json,
mirroring the existing .claude-plugin/plugin.json (name: app-builder, version: 1.0.0).
Documents the Cursor distribution channel in README under Installation, marking
app-builder as the pilot plugin. Other plugins will gain Cursor support once
the pattern is validated.