fix: set SMTP_TLS false and SMTP_SSL true for port 465

IONOS SMTP on port 465 uses implicit SSL, not STARTTLS.
Set SMTP_TLS: false and SMTP_SSL: true.

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

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

asciinema/compose.yaml

@@ -18,7 +18,8 @@ services:
       SMTP_PORT: ${EMAIL_SMTP_PORT}
       SMTP_USERNAME: ${EMAIL_SMTP_USER}
       SMTP_PASSWORD: ${EMAIL_SMTP_PASSWORD}
-      SMTP_TLS: always
+      SMTP_TLS: false
+      SMTP_SSL: true
       SMTP_AUTH: always
       MAIL_FROM_ADDRESS: ${EMAIL_FROM}
       MAIL_REPLY_TO_ADDRESS: ${ASCIINEMA_MAIL_REPLY_TO}