feat(notes): liens internes, onglet Réseau, living blocks et consentement IA

Rend les liens entre notes visibles et persistants (sync NoteLink au save, auto-save, graphe réseau rafraîchi), ajoute living blocks, Memory Echo, recherche globale, consentement IA explicite et consolide les prototypes design en architectural-grid.

Co-authored-by: Cursor <cursoragent@cursor.com>

architectural-grid/src/types.ts

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+export type NavigationView = 'notebooks' | 'agents' | 'settings' | 'shared' | 'reminders' | 'trash' | 'brainstorm' | 'insights' | 'temporal' | 'graph' | 'revision';
+export type AITone = 'Professional' | 'Creative' | 'Academic' | 'Casual';
+export type AITab = 'infos' | 'versions' | 'relations' | 'discussion' | 'actions' | 'resources' | 'explore';
+export type SettingsTab = 'general' | 'ai' | 'billing' | 'appearance' | 'profile' | 'data' | 'mcp' | 'about';
+
+export interface Tag {
+  id: string;
+  label: string;
+  type: 'ai' | 'user';
+}
+
+export interface Attachment {
+  id: string;
+  name: string;
+  type: 'pdf' | 'docx' | 'image' | 'other';
+  url: string;
+  content?: string; // Extracted text
+  isProcessed?: boolean;
+}
+
+export interface NoteVersion {
+  id: string;
+  title: string;
+  content: string;
+  timestamp: string;
+  size: number;
+}
+
+export interface Note {
+  id: string;
+  carnetId: string;
+  title: string;
+  content: string;
+  imageUrl: string;
+  date: string;
+  tags: Tag[];
+  attachments?: Attachment[];
+  isPinned?: boolean;
+  isDeleted?: boolean;
+  deletedAt?: string;
+  embedding?: number[];
+  clusterId?: string;
+  isClipped?: boolean;
+  clipSourceUrl?: string;
+  clipFavicon?: string;
+  clipDate?: string;
+  isVersioningEnabled?: boolean;
+  versionHistory?: NoteVersion[];
+}
+
+export interface NoteCluster {
+  id: string;
+  name: string;
+  noteIds: string[];
+  centroid? : number[];
+  color: string;
+}
+
+export interface BridgeNote {
+  noteId: string;
+  connectedClusterIds: string[];
+  bridgeScore: number;
+}
+
+export interface ConnectionSuggestion {
+  id: string;
+  title: string;
+  description: string;
+  reasoning: string;
+  clusterAId: string;
+  clusterBId: string;
+}
+
+export interface BrainstormSession {
+  id: string;
+  seedIdea: string;
+  sourceNoteId?: string;
+  contextNoteIds?: string[];
+  exportedNoteId?: string;
+  createdAt: string;
+  updatedAt: string;
+  userId: string;
+}
+
+export type BrainstormIdeaStatus = 'active' | 'dismissed' | 'converted';
+
+export interface BrainstormIdea {
+  id: string;
+  sessionId: string;
+  waveNumber: 1 | 2 | 3;
+  title: string;
+  description: string;
+  connectionToSeed: string;
+  noveltyScore: number; // 1-10
+  parentIdeaId?: string;
+  convertedToNoteId?: string;
+  relatedNoteIds?: string[];
+  status: BrainstormIdeaStatus;
+  position?: { x: number; y: number };
+}
+
+export interface Carnet {
+  id: string;
+  name: string;
+  initial: string;
+  type: 'Private' | 'Project' | 'Shared';
+  isPrivate?: boolean;
+  parentId?: string;
+  isDeleted?: boolean;
+  deletedAt?: string;
+}
+
+export interface NoteAccessLog {
+  noteId: string;
+  accessedAt: string;
+  action: 'view' | 'edit' | 'search_hit';
+}
+
+export interface NotePrediction {
+  noteId: string;
+  predictedRelevanceDate: string;
+  confidence: number;
+  reason: string;
+  generatedAt: string;
+}
+
+export type FlashcardEvaluation = 'fail' | 'hesitant' | 'sure';
+
+export interface Flashcard {
+  id: string;
+  noteId: string;
+  question: string;
+  answer: string;
+  intervalDays: number; // For spaced repetition
+  nextReviewDate: string; // ISO String
+  easeFactor: number;
+  mastered: boolean;
+  history?: {
+    reviewedAt: string;
+    evaluation: FlashcardEvaluation;
+  }[];
+}
+
+export interface FlashcardDeck {
+  noteId: string;
+  title: string;
+  cardsCount: number;
+  nextReviewDate: string; // Min nextReviewDate of all cards
+  masteryScore: number; // Proportion of cards evaluation === 'sure'
+  cards: Flashcard[];
+}
+
+