feat: add Makefile with Docker image build and push commands

Author: gustaavik

Makefile

@@ -0,0 +1,30 @@
+.PHONY: help db-start db-stop db-restart db-logs db-clean migrate-up migrate-down seed-data build run test clean docker-build docker-build-tag docker-push docker-build-push
+
+# Default target
+help: ## Show this help message
+	@echo "Available commands:"
+	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-20s\033[0m %s\n", $$1, $$2}'
+
+
+# Docker image commands
+docker-build: ## Build Docker image
+	docker build -t ghcr.io/zenfulcode/commercify-app:latest .
+
+docker-build-tag: ## Build Docker image with specific tag (use TAG=version)
+	@if [ -z "$(TAG)" ]; then echo "Error: TAG is required. Use: make docker-build-tag TAG=v1.0.0"; exit 1; fi
+	docker build -t ghcr.io/zenfulcode/commercify-app:$(TAG) -t ghcr.io/zenfulcode/commercify-app:latest -t ghcr.io/zenfulcode/commercify-app:dev .
+
+docker-push: ## Push Docker image to registry (use REGISTRY and TAG)
+	@if [ -z "$(REGISTRY)" ]; then echo "Error: REGISTRY is required. Use: make docker-push REGISTRY=your-registry.com"; exit 1; fi
+	@if [ -z "$(TAG)" ]; then echo "Error: TAG is required. Use: make docker-push REGISTRY=your-registry.com TAG=v1.0.0"; exit 1; fi
+	docker push $(REGISTRY)/commercify-app:$(TAG)
+	docker push $(REGISTRY)/commercify-app:latest
+	docker push $(REGISTRY)/commercify-app:dev
+
+docker-build-push: docker-build-tag docker-push ## Build and push Docker image (use REGISTRY and TAG)
+
+docker-dev-build: ## Build Docker image for development
+	docker build -t ghcr.io/zenfulcode/commercify-app:dev .
+
+# PUSH NEW DOCKER IMAGE
+# make docker-build-push REGISTRY=ghcr.io/zenfulcode TAG=v1.1-dev