feat: editor enriquecido en notas de Seguimiento

Barra tipo Docs (negrita, color, resaltado, listas, enlaces, tamaño) al crear notas.

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

src/app/api/seguimiento/route.ts

@@ -105,7 +105,17 @@ export async function POST(req: NextRequest) {
       : typeof body.note === 'string'
         ? body.note.trim()
         : '';
-  if (!text) {
+  const plain = text
+    .replace(/<br\s*\/?>/gi, '\n')
+    .replace(/<\/(p|div|li|h[1-6])>/gi, '\n')
+    .replace(/<[^>]+>/g, '')
+    .replace(/&nbsp;/gi, ' ')
+    .replace(/&amp;/g, '&')
+    .replace(/&lt;/g, '<')
+    .replace(/&gt;/g, '>')
+    .replace(/\s+/g, ' ')
+    .trim();
+  if (!plain) {
     return NextResponse.json({ error: 'Texto de la nota requerido' }, { status: 400 });
   }
   const title =
@@ -123,7 +133,7 @@ export async function POST(req: NextRequest) {
     entry_type: 'note',
     external_id: `manual-${randomUUID()}`,
     title,
-    summary: text.slice(0, 280),
+    summary: plain.slice(0, 280),
     body_md: text,
     occurred_at: occurredRaw,
     synced_at: new Date().toISOString(),