LeoVasanko 658dea77b9 Remove stale /_admin app and disable SPA fallback ...

- Remove the /_admin route, views.render_editor, and standalone mode from
  the Vue editor (main.js / PageEditor.vue)
- Remove /_admin dev proxy and preload exclusion
- Set vite appType to 'mpa' and delete frontend/index.html so unknown
  /_ paths return 404 instead of an empty Vue shell
- Update AGENTS.md and docs/design-principles.md

2026-08-16 20:20:19 +00:00

..

design-principles.md

Remove stale /_admin app and disable SPA fallback

2026-08-16 20:20:19 +00:00