🐛 fix: BDD tests PostgreSQL connection for native execution

- Simplify getPostgresHost() to always use localhost by default
- Use DLC_DATABASE_HOST=localhost for all local execution
- Container name only needed when running INSIDE Docker containers
- Fix native execution PostgreSQL connection issues
- Ensure BDD tests connect to localhost:5432 (mapped port)

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

scripts/test-local-ci-cd.sh

@@ -69,7 +69,9 @@ for i in {1..30}; do
 done
 
 # Set PostgreSQL environment variables for BDD tests
-export DLC_DATABASE_HOST="dance-lessons-coach-postgres"
+# Use localhost since PostgreSQL port is mapped to host
+# Container name is only used when running INSIDE Docker containers
+export DLC_DATABASE_HOST="localhost"
 export DLC_DATABASE_PORT=5432
 export DLC_DATABASE_USER=postgres
 export DLC_DATABASE_PASSWORD=postgres
@@ -130,7 +132,7 @@ if [ "$USE_DOCKER_CACHE" = true ]; then
       --network dance-lessons-coach-network \
       -v "$(pwd):/workspace" \
       -w /workspace \
-      -e DLC_DATABASE_HOST=dance-lessons-coach-postgres \
+      -e DLC_DATABASE_HOST=localhost \
       -e DLC_DATABASE_PORT=5432 \
       -e DLC_DATABASE_USER=postgres \
       -e DLC_DATABASE_PASSWORD=postgres \