Improve campaign personalization and contact duplicate handling.

Add merge tags for email/SMS, paginated removable recipients, PCM event panels for postcard campaigns, and a portal modal when phone/address matches an existing contact.

site/messaging/providers/email/smtp2go.py

@@ -5,7 +5,7 @@ from django.core.mail import EmailMultiAlternatives
 from django.template.loader import get_template
 
 from contacts.models import Channel
-from messaging.services import one_click_unsubscribe_url, preferences_url
+from messaging.services import one_click_unsubscribe_url, preferences_url, render_merge_tags
 from public.email_branding import (
     campaign_body_to_email_html,
     campaign_body_to_plain_text,
@@ -28,6 +28,8 @@ def send_email(message) -> str:
     body = message.body_snapshot or campaign.body_override or (
         campaign.template.body if campaign.template else ""
     )
+    subject = render_merge_tags(subject, contact)
+    body = render_merge_tags(body, contact)
 
     site = (settings.PUBLIC_SITE_URL or "").rstrip("/")
     prefs_path = preferences_url(str(contact.pk), Channel.EMAIL)

site/messaging/providers/sms/smtp2go.py

@@ -5,6 +5,8 @@ import logging
 import requests
 from django.conf import settings
 
+from messaging.services import render_merge_tags
+
 logger = logging.getLogger(__name__)
 
 
@@ -21,6 +23,7 @@ def send_sms(message) -> str:
     body = message.body_snapshot or campaign.body_override or (
         campaign.template.body if campaign.template else ""
     )
+    body = render_merge_tags(body, contact)
 
     payload = {
         "api_key": api_key,