feat: brainstorm sessions, PDF document Q&A, embedding fixes, and UI improvements

- Add brainstorm feature with collaborative canvas, AI idea generation, live cursors, playback, and export
- Add PDF upload/extraction/ingestion pipeline with pgvector document search (RAG)
- Add document Q&A overlay with streaming chat and PDF preview
- Add note attachments UI with status polling, grid layout, and auto-scroll
- Add task extraction AI tool and agent executor improvements
- Fix NoteEmbedding missing updatedAt column, re-index 66 notes with 1536-dim embeddings
- Fix brainstorm 'Create Note' button: add success toast and redirect to created note
- Fix memory echo notification infinite polling
- Fix chat route to always include document_search tool
- Add brainstorm i18n keys across all 14 locales
- Add socket server for real-time brainstorm collaboration
- Add hierarchical notebook selector and organize notebook dialog improvements
- Add sidebar brainstorm section with session management
- Update prisma schema with brainstorm tables, attachments, and document chunks

architectural-grid11/src/types.ts

@@ -0,0 +1,102 @@
+export type NavigationView = 'notebooks' | 'agents' | 'settings' | 'shared' | 'reminders' | 'trash' | 'brainstorm' | 'insights' | 'temporal';
+export type AITone = 'Professional' | 'Creative' | 'Academic' | 'Casual';
+export type AITab = 'discussion' | 'actions' | 'resources' | 'explore';
+export type SettingsTab = 'general' | 'ai' | 'appearance' | 'profile' | 'data' | 'mcp' | 'about';
+
+export interface Tag {
+  id: string;
+  label: string;
+  type: 'ai' | 'user';
+}
+
+export interface Note {
+  id: string;
+  carnetId: string;
+  title: string;
+  content: string;
+  imageUrl: string;
+  date: string;
+  tags: Tag[];
+  isPinned?: boolean;
+  isDeleted?: boolean;
+  deletedAt?: string;
+  embedding?: number[];
+  clusterId?: string;
+}
+
+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;
+}
+