Connect Finance to platform PostgreSQL network

[iPior]

Summary

• joins the Finance API container to the external pior_data Docker network
• joins the Finance MCP container to the same platform data network
• declares pior_data as an external Compose network
• updates the production workflow to ensure pior_data exists before migrations and deployment

Why

Finance is moving to the platform-managed PostgreSQL database. The platform database URL uses a Docker network hostname, so the containers that connect to PostgreSQL must share the pior_data network.

Deployment requirement

Before merging, update the repository FINLENS_ENV secret so DATABASE_URL contains the exact value from:

/opt/docker/pior-labs/secrets/app-finance-tracker/database-url

This deployment will run Finance migrations against that database. Existing Finance data and users are not migrated.

Intentionally unchanged

• pior_edge networking and Caddy aliases
• SSO configuration
• local host port bindings
• the legacy finlens_private network, pending later cleanup