Update .env.example for app to gat a connection to the db and also used the valtaibles

[hamachersim]

🔧 Fix database connection configuration

Description

This PR updates the .env.example to correct the PostgreSQL connection configuration for Docker-based setups.

Previously, the DATABASE_URL pointed to localhost, which breaks containerized deployments where the database runs in a separate Docker service. This update ensures the application correctly connects to the splitpro-db service inside the Docker network.

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Changes

✅ Updated .env.example

Old configuration:

POSTGRES_PASSWORD="strong-password"
POSTGRES_DB="splitpro"
POSTGRES_PORT=5432
DATABASE_URL="postgresql://postgres:strong-password@localhost:5432/splitpro"

New configuration:

POSTGRES_USER="postgres"
POSTGRES_PASSWORD="strong-password"
POSTGRES_DB="splitpro"
POSTGRES_PORT=5432
DATABASE_URL=postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@splitpro-db:5432/${POSTGRES_DB}

[krokosik]

Right, localhost is for dev, sorry about that. Actually, the composite string is also an issue on dev, as prisma does not do interpolation.

Could you update the PR to have a commented out dev version (with localhost and literal values)?

[hamachersim]

Hey, I have updated the URLs accordingly. Let me know if you'd like me to change them again. Kind regards, Simon

[hamachersim]

Hey, I did it. Sorry for the misunderstanding. Kind regards, Simon