Add Rails backend: accounts via magic link, server documents, sharing

The app becomes a Rails 8 application; the Vue frontend moves to
app/frontend and is served through vite_rails.

- Without an account documents stay in the browser (IndexedDB). Sign-in
  is by magic link or the 6-digit code from the same mail; afterwards
  local documents can be uploaded into the account.
- Server documents (/d/<id>) with versioned saves and a single-editor
  lock per browser tab; others see them read-only and follow by polling.
- Sharing via link (works without an account) and via e-mail invitation,
  roles viewer/editor; the owner manages links and people.
- Store gains a read-only mode that blocks all content changes.
- Solid Queue, Cache and Cable share the one PostgreSQL database.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
wkh
2026-09-28 20:09:06 +02:00
co-authored by Claude Opus 5.5
parent 5a0f1fcd78
commit e14bada114
190 changed files with 6077 additions and 722 deletions
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<p>Hallo,</p>
<p>mit diesem Link meldest du dich bei numolus an (gültig 15&nbsp;Minuten, einmal verwendbar):</p>
<p><a href="<%= @url %>">Bei numolus anmelden</a></p>
<p>Oder gib diesen Code in numolus ein: <strong style="font-size:18px;letter-spacing:2px"><%= @code %></strong></p>
<p style="color:#6e6e73">Falls du das nicht angefordert hast, kannst du diese Mail ignorieren.</p>