🐛 fix: BDD tests PostgreSQL connection for native execution

- Enhance getPostgresHost() to detect Docker vs native execution
- Use localhost for native execution (PostgreSQL port mapping)
- Use container name for Docker execution
- Fix local CI/CD script to set correct DLC_DATABASE_HOST
- Ensure BDD tests can connect in both Docker and native modes

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

pkg/bdd/testserver/server.go

@@ -17,14 +17,19 @@ import (
 )
 
 // getPostgresHost returns the appropriate PostgreSQL host based on environment
-// Uses DLC_DATABASE_HOST environment variable or defaults to container name
+// Uses DLC_DATABASE_HOST environment variable or defaults appropriately
 func getPostgresHost() string {
 	host := os.Getenv("DLC_DATABASE_HOST")
 	if host != "" {
 		return host
 	}
-	// Default to container name for Docker environments
-	return "dance-lessons-coach-postgres"
+	// Default to localhost for native execution, container name for Docker
+	// Check if we're running in a container by looking for Docker-specific env vars
+	if os.Getenv("DOCKER_CONTAINER") != "" || os.Getenv("KUBERNETES_SERVICE_HOST") != "" {
+		return "dance-lessons-coach-postgres"
+	}
+	// Native execution - use localhost with container port mapping
+	return "localhost"
 }
 
 type Server struct {