feat: Add user purchase and receipt management

- Implemented 'Mis Compras' and 'Mis Recibos' pages for users to view their orders and payment receipts.
- Enhanced address validation in 'editar_direccion.html' to ensure cities and postal codes belong to Almería.
- Added shipping address display in seller order details on 'pedidos_vendedor.html'.
- Updated user portal to include links to purchases and receipts.
- Introduced email verification functionality during user registration.
- Refactored email sending utility for better error handling and logging.
- Improved session management for checkout processes with selected shipping addresses.

tienda/utilities.py

@@ -0,0 +1,46 @@
+from django.core.mail import send_mail
+import logging
+from django.conf import settings
+
+
+logger = logging.getLogger("email.system")
+#
+#def send_email(dest: str, title: str, body: str):
+#    context = ssl.create_default_context()
+#    try:
+#        with smtplib.SMTP(settings.SMTP_ENDPOINT, settings.SMTP_PORT) as server:
+#
+#        
+#            server.ehlo()
+#            server.starttls(context=context)
+#            server.ehlo()
+#            server.login(settings.SMTP_USERNAME, settings.SMTP_PASSWORD)
+#        
+#            message = """\
+#Subject: {}
+#{}
+#            """.format(title, body)
+#            server.sendmail(settings.SMTP_EMAIL, dest, message)
+#            logger.info("EMAIL_SENT to=%s subject=%s", dest, title)
+#        
+#    except Exception as e:
+#        logger.exception("EMAIL_SEND_FAILED to=%s subject=%s error=%s", dest, title, str(e))
+#        return (False, e)
+#    
+#    return (True,)
+
+def send_email(dest: str, title: str, body: str):
+    try:
+        send_mail(
+            subject=title,
+            message=body,
+            from_email=settings.DEFAULT_FROM_EMAIL,
+            recipient_list=[dest],
+            fail_silently=False,
+        )
+
+        logger.info("EMAIL_SENT to=%s subject=%s", dest, title)
+        return (True,)
+    except Exception as e:
+        logger.exception("EMAIL_SEND_FAILED to=%s subject=%s error=%s", dest, title, str(e))
+        return (False, e)