feat: Add SMTP env variables to docker-compose for Postal

docker-compose.yml

@@ -11,10 +11,18 @@ services:
     environment:
       - DATABASE_URL=${DATABASE_URL:-postgresql://elmeg:elmeg_password@db:5432/elmeg}
       - SECRET_KEY=${SECRET_KEY:-demo-secret-change-in-production}
+      # Postal SMTP (primary)
+      - SMTP_HOST=${SMTP_HOST}
+      - SMTP_PORT=${SMTP_PORT:-25}
+      - SMTP_USERNAME=${SMTP_USERNAME}
+      - SMTP_PASSWORD=${SMTP_PASSWORD}
+      - SMTP_USE_TLS=${SMTP_USE_TLS:-true}
+      # AWS SES (fallback)
       - AWS_ACCESS_KEY_ID=${AWS_ACCESS_KEY_ID}
       - AWS_SECRET_ACCESS_KEY=${AWS_SECRET_ACCESS_KEY}
       - AWS_SES_REGION=${AWS_SES_REGION}
-      - EMAIL_FROM=${EMAIL_FROM}
+      # Common
+      - EMAIL_FROM=${EMAIL_FROM:-noreply@elmeg.xyz}
       - FRONTEND_URL=${FRONTEND_URL:-https://elmeg.xyz}
     command: sh start.sh
     depends_on: