feat: add slides generation tool with multiple slide types

- Add slides.tool.ts with support for title, bullets, chart, stats, table, cards, timeline, quote, comparison, equation, image, summary slide types
- Chart types: bar, horizontal-bar, line, donut, radar
- Integrate with agent executor and canvas system
- Add multilingual support (en/fr)
- Various UI improvements and bug fixes

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

memento-note/app/api/graph/sync-all/route.ts

@@ -0,0 +1,84 @@
+import { NextResponse } from 'next/server'
+import prisma from '@/lib/prisma'
+import { auth } from '@/auth'
+
+const WIKILINK_RE = /\[\[([^\]|#]+?)(?:[|#][^\]]+)?\]\]/g
+
+function extractWikilinks(content: string): { title: string; snippet: string }[] {
+  const plain = content.replace(/<[^>]+>/g, ' ')
+  const results: { title: string; snippet: string }[] = []
+  const seen = new Set<string>()
+  let match: RegExpExecArray | null
+
+  WIKILINK_RE.lastIndex = 0
+  while ((match = WIKILINK_RE.exec(plain)) !== null) {
+    const title = match[1].trim()
+    if (!title || seen.has(title.toLowerCase())) continue
+    seen.add(title.toLowerCase())
+    const start = Math.max(0, match.index - 50)
+    const end = Math.min(plain.length, match.index + match[0].length + 50)
+    const snippet = plain.slice(start, end).replace(/\s+/g, ' ').trim()
+    results.push({ title, snippet })
+  }
+
+  return results
+}
+
+/**
+ * POST /api/graph/sync-all
+ * Batch-sync [[wikilinks]] for ALL notes of the authenticated user.
+ * Call once to populate the NoteLink table from existing notes.
+ */
+export async function POST() {
+  const session = await auth()
+  if (!session?.user?.id) {
+    return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })
+  }
+  const userId = session.user.id
+
+  // Get all non-trashed notes with content
+  const notes = await prisma.note.findMany({
+    where: { userId, trashedAt: null, content: { not: '' } },
+    select: { id: true, content: true, notebookId: true },
+  })
+
+  let totalLinks = 0
+
+  for (const note of notes) {
+    if (!note.content.includes('[[')) continue
+
+    const wikilinks = extractWikilinks(note.content)
+    if (wikilinks.length === 0) continue
+
+    for (const { title, snippet } of wikilinks) {
+      let targetNote = await prisma.note.findFirst({
+        where: {
+          userId,
+          title: { equals: title, mode: 'insensitive' },
+          trashedAt: null,
+        },
+        select: { id: true },
+      })
+
+      if (!targetNote) {
+        // Skip stubs in batch sync — we only link existing notes
+        continue
+      }
+
+      if (targetNote.id === note.id) continue
+
+      try {
+        await (prisma as any).noteLink.upsert({
+          where: { sourceNoteId_targetNoteId: { sourceNoteId: note.id, targetNoteId: targetNote.id } },
+          update: { contextSnippet: snippet },
+          create: { sourceNoteId: note.id, targetNoteId: targetNote.id, contextSnippet: snippet },
+        })
+        totalLinks++
+      } catch {
+        // ignore duplicate constraint errors
+      }
+    }
+  }
+
+  return NextResponse.json({ synced: notes.length, links: totalLinks })
+}