feat: gamepad navigation rewrite, focus styling, container grid system
- Rewrite useControllerNav.ts with clean console-style navigation:
Sidebar (up/down wrap, right→containers, left→nothing),
Container tile grid (spatial nav, no wrap at edges),
Nav bar support (up from containers, down to grid),
Inner controls (enter drills in, escape exits, trapped arrows)
- Add data-controller-container to Mesh, Fleet, Settings pages
- Fix Home.vue fragment (modals outside root div) causing Vue warnings
- Remove skip-to-content link (handled by controller nav)
- Orange ambient glow focus styling matching glass aesthetic
- Disable PWA service worker in dev mode (fixes HMR caching)
- Add gamepad-nav skill and GAMEPAD-NAV-MAP.md spec document
- 39 tests covering all navigation patterns
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
901b9f660f