fix: improve PostgreSQL health checks and expose port 5432

- Add explicit expose directive for port 5432 on both postgres containers
- Improve health check to test specific database and user
- Should help with database connection issues

docker-compose.coolify.yml

@@ -22,8 +22,10 @@ services:
       POSTGRES_PASSWORD: ${DATABASE_PASSWORD}
     volumes:
       - placebo-postgres-backend-data:/var/lib/postgresql/data
+    expose:
+      - "5432"
     healthcheck:
-      test: ['CMD-SHELL', 'pg_isready']
+      test: ['CMD-SHELL', 'pg_isready -U placebo_user -d placebo_backend_db']
       interval: 5s
       timeout: 5s
       retries: 10
@@ -41,8 +43,10 @@ services:
       POSTGRES_PASSWORD: ${DATABASE_PASSWORD}
     volumes:
       - placebo-postgres-cms-data:/var/lib/postgresql/data
+    expose:
+      - "5432"
     healthcheck:
-      test: ['CMD-SHELL', 'pg_isready']
+      test: ['CMD-SHELL', 'pg_isready -U placebo_user -d placebo_cms_db']
       interval: 5s
       timeout: 5s
       retries: 10