feat(client): add database-view Tiptap extension for R3.1.c
- Tiptap Node extension (database-view) with attrs tableId/viewId/viewType/bridgeUrl
- NodeViewWrapper dispatches on viewType: grid/table -> TableRenderer, other -> PlaceholderRenderer
- TableRenderer (HTML table, TanStack Table v8 migration-ready - dep not yet installed)
- InsertDatabaseModal (Mantine, 2-step: table -> view selection)
- useDatabaseRealtimeUpdates SSE hook (EventSource + exponential backoff + React Query invalidation)
- bridge-client.ts (axios wrapper, per-origin singleton, cookie Bearer passthrough)
- Slash command /database registered in menu-items CommandGroups
- DatabaseViewExtension wired in mainExtensions array
- i18n: 22 keys added in en-US and fr-FR
- 41 Vitest tests across 5 suites (extension schema, component dispatch, renderer states, modal steps, SSE hook)
Upstream patches: extensions.ts (+2 lines), menu-items.ts (+4 lines), 2 translation files
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Corentin
71c2abad8a
