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

memento-note/types/brainstorm.ts

@@ -0,0 +1,71 @@
+export type NoteRefRelation = 'derived_from' | 'opposes' | 'extends' | 'synthesizes' | 'transposes' | 'none_found'
+export type NoteRefVerdict = 'accepted' | 'dismissed' | 'unresolved'
+export type NoteRefVisibility = 'public' | 'participants' | 'owner_only'
+
+export interface BrainstormNoteRef {
+  id: string
+  ideaId: string
+  noteId: string | null
+  relation: NoteRefRelation
+  explanation: string
+  verdict: NoteRefVerdict
+  visibility: NoteRefVisibility
+  note?: { id: string; title: string | null } | null
+}
+
+export interface BrainstormIdea {
+  id: string
+  sessionId: string
+  waveNumber: number
+  title: string
+  description: string
+  connectionToSeed: string | null
+  noveltyScore: number | null
+  parentIdeaId: string | null
+  convertedToNoteId: string | null
+  relatedNoteIds: string | null
+  status: 'active' | 'dismissed' | 'converted'
+  positionX: number | null
+  positionY: number | null
+  createdBy: string | null
+  createdByType: 'ai' | 'human' | null
+  createdAt: Date
+  children?: BrainstormIdea[]
+  noteRefs?: BrainstormNoteRef[]
+  creator?: { id: string; name: string | null; image: string | null } | null
+}
+
+export interface BrainstormActivityItem {
+  id: string
+  action: string
+  details: Record<string, any> | null
+  createdAt: string
+  user: { name: string | null; image: string | null } | null
+}
+
+export interface BrainstormSession {
+  id: string
+  seedIdea: string
+  sourceNoteId: string | null
+  contextNoteIds: string | null
+  exportedNoteId: string | null
+  userId: string
+  isPublic?: boolean
+  guestCanEdit?: boolean
+  createdAt: Date
+  updatedAt: Date
+  ideas: BrainstormIdea[]
+  sourceNote?: { id: string; title: string | null } | null
+  exportedNote?: { id: string; title: string | null } | null
+}
+
+export interface BrainstormSessionListItem {
+  id: string
+  seedIdea: string
+  sourceNoteId: string | null
+  exportedNoteId: string | null
+  createdAt: Date
+  updatedAt: Date
+  totalIdeas: number
+  activeIdeas: number
+}

memento-note/types/global.d.ts

@@ -1,2 +1,7 @@
 declare module 'web-animations-js';
 declare module 'muuri';
+
+declare module 'jalaali-js' {
+  export function toJalaali(gy: number, gm: number, gd: number): { jy: number; jm: number; jd: number }
+  export function toJalaali(date: Date): { jy: number; jm: number; jd: number }
+}