v0.1.1

Added

• /menu-test slash command — self-test that renders a demo menu so
  users can verify the plugin is wired correctly after install.
• /menu-render <spec-path> slash command — ad-hoc rendering from any
  JSON spec file on disk; useful for plugin authors testing their specs.
• scripts/menu_test_specs.py — helper script that produces canonical
  demo specs for all 8 modes. Used by /menu-test and re-used to seed
  the examples/ gallery.
• examples/ directory with 8 canonical JSON specs (one per render
  mode) — plugin authors can copy-paste these as starting points.

Notes

• All changes additive — no behavior change to v0.1.0 hooks / skill /
  renderer. Consumer plugins built against v0.1.0 work unchanged on v0.1.1.