feat: email templates in CMS

apps/cms/.env.example

@@ -19,7 +19,7 @@ PORT=1337
 # Public URL of the API, used to build absolute media/admin URLs.
 # Leave commented out in local development; set it behind a proxy or a custom
 # domain, e.g. PUBLIC_URL=https://cms.sharper.ly
-# PUBLIC_URL=
+PUBLIC_URL=https://cms.sharper.ly
 # true when Strapi sits behind nginx / a load balancer, so X-Forwarded-* headers
 # are trusted for the client IP and protocol.
 IS_PROXIED=false
@@ -152,7 +152,13 @@ SMTP_PASSWORD=your-password
 DEFAULT_FROM=no-reply@yourdomain.com
 DEFAULT_REPLY_TO=support@yourdomain.com
 # The values above are also the from/reply-to for the registration
-# confirmation and event-reminder e-mails (src/lib/event-mail.ts).
+# confirmation, event-reminder and application-acknowledgement e-mails
+# (src/lib/event-mail.ts, src/lib/application-mail.ts).
+#
+# The subject and body of those e-mails are editable in the CMS (the
+# email-settings single type); the SHARP-ER / EU / partner logo header needs
+# PUBLIC_URL (above) to build absolute image URLs - without it the mail falls
+# back to a text wordmark.
 
 # Production only - switching the upload provider to S3. Uncomment these after
 # adding @strapi/provider-upload-aws-s3 and editing the upload block in