fix: Agregar nombre único a muestras usando secuencia

- Se agrega el campo 'name' obligatorio al crear stock.lot para muestras
- Se utiliza la secuencia 'stock.lot.serial' para generar nombres únicos
- Se incluye fallback basado en timestamp si no existe secuencia
- Corrige el error de validación en la creación de muestras

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

.claude/settings.local.json

@@ -18,7 +18,8 @@
       "Bash(ls:*)",
       "Bash(move lab_logo.png lims_management/static/img/lab_logo.png)",
       "WebFetch(domain:github.com)",
-      "WebFetch(domain:apps.odoo.com)"
+      "WebFetch(domain:apps.odoo.com)",
+      "Bash(dir:*)"
     ],
     "deny": []
   }

lims_management/models/sale_order.py

@@ -136,8 +136,16 @@ class SaleOrder(models.Model):
         try:
             sample_type = group_data['sample_type']
             
+            # Generate a unique lot name using sequence
+            sequence = self.env['ir.sequence'].next_by_code('stock.lot.serial')
+            if not sequence:
+                # Fallback to timestamp-based name if no sequence exists
+                import time
+                sequence = 'LAB-' + str(int(time.time()))[-8:]
+            
             # Prepare sample values
             vals = {
+                'name': sequence,  # Add the lot name
                 'product_id': sample_type.product_variant_id.id,
                 'patient_id': self.partner_id.id,
                 'doctor_id': self.doctor_id.id if self.doctor_id else False,