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/components/settings/SettingsNav.tsx

@@ -2,7 +2,7 @@
 
 import Link from 'next/link'
 import { usePathname } from 'next/navigation'
-import { Settings, Sparkles, Palette, User, Database, Info, Key, CreditCard } from 'lucide-react'
+import { Settings, Sparkles, Palette, User, Database, Info, Key, CreditCard, Plug } from 'lucide-react'
 import { useLanguage } from '@/lib/i18n'
 import { motion } from 'motion/react'
 
@@ -21,6 +21,7 @@ export function SettingsNav({ className }: SettingsNavProps) {
     { id: 'appearance', label: t('appearance.title'), icon: <Palette size={14} />, href: '/settings/appearance' },
     { id: 'profile', label: t('profile.title'), icon: <User size={14} />, href: '/settings/profile' },
     { id: 'data', label: t('dataManagement.title'), icon: <Database size={14} />, href: '/settings/data' },
+    { id: 'integrations', label: t('integrations.title') || 'Intégrations', icon: <Plug size={14} />, href: '/settings/integrations' },
     { id: 'mcp', label: t('mcpSettings.title'), icon: <Key size={14} />, href: '/settings/mcp' },
     { id: 'about', label: t('about.title'), icon: <Info size={14} />, href: '/settings/about' },
   ]