✨ feat(frontend): scaffold minimal Nuxt 3 frontend with healthz dashboard (#25)

First Vue 3 / Nuxt 3 / Playwright frontend layer for dance-lessons-coach. Minimal: 1 page, 1 component fetching /api/healthz, 1 e2e test. Out of scope: Storybook, design system, auth pages, deploy.

~95% Mistral autonomous via ICM workspace ~/Work/Vibe/workspaces/frontend-nuxt-scaffold/. Mistral handled the npx nuxi init TUI by falling back to manual file creation (Q-032 documented).

Co-authored-by: Gabriel Radureau <arcodange@gmail.com>
Co-committed-by: Gabriel Radureau <arcodange@gmail.com>

.gitignore

@@ -34,3 +34,13 @@ config/runner
 coverage.txt
 trigger.txt
 test_trigger.txt
+
+# Frontend
+frontend/node_modules/
+frontend/.nuxt/
+frontend/.output/
+frontend/dist/
+frontend/.env
+frontend/.cache/
+frontend/test-results/
+frontend/playwright-report/