docs(run-ops): add RUN_OPS_DATABASE_URL to .env.example

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: d-cs

.env.example

@@ -7,6 +7,10 @@ DATABASE_URL=postgresql://postgres:postgres@localhost:5432/postgres?schema=publi
 # This sets the URL used for direct connections to the database and should only be needed in limited circumstances
 # See: https://www.prisma.io/docs/reference/api-reference/prisma-schema-reference#fields:~:text=the%20shadow%20database.-,directUrl,-No
 DIRECT_URL=${DATABASE_URL}
+# Dedicated run-ops database (@internal/run-ops-database). Only needed to run prisma commands
+# against it or to enable the run-ops split; start it with `docker compose --profile runops up`.
+RUN_OPS_DATABASE_URL=postgresql://postgres:postgres@localhost:5434/postgres?schema=public
+RUN_OPS_DATABASE_DIRECT_URL=${RUN_OPS_DATABASE_URL}
 REMIX_APP_PORT=3030
 # Dev-only: stream the webapp's logs over a local telnet/TCP socket (nc localhost 6767). Uncomment to enable.
 # WEBAPP_TELNET_LOGS_PORT=6767