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/components/agents/agent-templates.tsx

@@ -10,6 +10,7 @@ import {
   Loader2,
   Presentation,
   Pencil,
+  ListChecks,
 } from 'lucide-react'
 import { toast } from 'sonner'
 import { useLanguage } from '@/lib/i18n'
@@ -42,6 +43,7 @@ const templateConfig = [
   { id: 'chercheur', type: 'researcher', roleKey: 'agents.defaultRoles.researcher', urls: [], frequency: 'manual' },
   { id: 'slideGenerator', type: 'slide-generator', roleKey: 'agents.defaultRoles.slideGenerator', urls: [], frequency: 'manual' },
   { id: 'excalidrawGenerator', type: 'excalidraw-generator', roleKey: 'agents.defaultRoles.excalidrawGenerator', urls: [], frequency: 'manual' },
+  { id: 'taskExtractor', type: 'task-extractor', roleKey: 'agents.defaultRoles.taskExtractor', urls: [], frequency: 'manual' },
 ] as const
 
 const typeIcons: Record<string, typeof Globe> = {
@@ -51,6 +53,7 @@ const typeIcons: Record<string, typeof Globe> = {
   custom: Settings,
   'slide-generator': Presentation,
   'excalidraw-generator': Pencil,
+  'task-extractor': ListChecks,
 }
 
 export function AgentTemplates({ onInstalled, existingAgentNames }: AgentTemplatesProps) {
@@ -87,7 +90,9 @@ export function AgentTemplates({ onInstalled, existingAgentNames }: AgentTemplat
                 ? ['note_search', 'note_read', 'generate_pptx']
                 : tpl.type === 'excalidraw-generator'
                   ? ['note_search', 'note_read', 'generate_excalidraw']
-                  : [],
+                  : tpl.type === 'task-extractor'
+                    ? ['note_search', 'note_read', 'task_extract', 'note_create']
+                    : [],
       })
       toast.success(t('agents.toasts.installSuccess', { name: resolvedName }))
       onInstalled()