Finalize database deployment readiness

.env.example

@@ -1,11 +1,9 @@
-SECRET_KEY=replace-this-with-a-long-random-string
-APP_ENV=production
-DATABASE_URL=postgresql+psycopg://user:password@host/dbname
-APP_BASE_URL=https://myboker.org
-RATELIMIT_STORAGE_URI=redis://localhost:6379/0
-MAIL_SERVER=smtp.sendgrid.net
+SECRET_KEY=local-dev-secret-change-me
+APP_ENV=development
+APP_BASE_URL=http://localhost:5000
+MAIL_SERVER=
 MAIL_PORT=587
 MAIL_USE_TLS=true
-MAIL_USERNAME=apikey
-MAIL_PASSWORD=your-sendgrid-api-key
+MAIL_USERNAME=
+MAIL_PASSWORD=
 MAIL_DEFAULT_SENDER=noreply@myboker.org