feat: Tier 1 & 2 — Daily Note, Voice, Flashcard quota, Readwise, Calendar, Agent Gallery

Tier 1:
- BASIC tier: chat (10/mo) + reformulate (10/mo) désormais accessibles
- Nouveaux quotas: ai_flashcard + voice_transcribe dans tous les tiers
- /api/notes/daily : note du jour auto-créée (find or create)
- Bouton Note du Jour dans la sidebar (CalendarDays)
- Voice-to-Text dans l'éditeur (Web Speech API, bouton Mic toolbar)
- Flashcard generation → quota ai_flashcard (au lieu de reformulate)

Tier 2:
- Intégration Readwise: GET/POST/DELETE /api/integrations/readwise
- Intégration Google Calendar: OAuth flow + today's events + meeting notes
- /api/integrations/calendar + /callback
- Page /settings/integrations avec cards Calendar + Readwise
- SettingsNav: onglet Intégrations
- AgentTemplates: catégories + 4 nouveaux templates (Digest/Recap/AutoTagger/Synthesis)

Schema:
- UserAISettings.integrationTokens Json? (migration 20260529160000)
- prisma generate + migrate deploy appliqués

Fix:
- SpeechRecognition types (triple-slash @types/dom-speech-recognition)
- Notebook.create: suppression champ 'description' inexistant

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

memento-note/app/api/notes/daily/route.ts

@@ -0,0 +1,64 @@
+import { NextResponse } from 'next/server'
+import { auth } from '@/auth'
+import prisma from '@/lib/prisma'
+
+function getTodayTitle(): string {
+  return new Date().toISOString().slice(0, 10) // YYYY-MM-DD
+}
+
+function getTodayContent(dateStr: string): string {
+  const d = new Date(dateStr)
+  const options: Intl.DateTimeFormatOptions = {
+    weekday: 'long',
+    year: 'numeric',
+    month: 'long',
+    day: 'numeric',
+  }
+  const formatted = d.toLocaleDateString('fr-FR', options)
+  return JSON.stringify({
+    type: 'doc',
+    content: [
+      { type: 'heading', attrs: { level: 1 }, content: [{ type: 'text', text: `📅 ${formatted}` }] },
+      { type: 'paragraph', content: [{ type: 'text', text: '' }] },
+    ],
+  })
+}
+
+/**
+ * GET /api/notes/daily
+ * Returns (or creates) today's daily note for the authenticated user.
+ */
+export async function GET() {
+  const session = await auth()
+  if (!session?.user?.id) {
+    return NextResponse.json({ success: false, error: 'Unauthorized' }, { status: 401 })
+  }
+
+  const today = getTodayTitle()
+  const userId = session.user.id
+
+  // Try to find existing daily note for today
+  let note = await prisma.note.findFirst({
+    where: {
+      userId,
+      title: today,
+      type: 'daily',
+      trashedAt: null,
+    },
+  })
+
+  if (!note) {
+    note = await prisma.note.create({
+      data: {
+        userId,
+        title: today,
+        content: getTodayContent(today),
+        type: 'daily',
+        color: '#FEF9C3', // yellow-100 — distinguishes daily notes visually
+        labels: JSON.stringify(['daily']),
+      },
+    })
+  }
+
+  return NextResponse.json({ success: true, note })
+}