cleanup file structure, dockerize app

Makefile

@@ -3,26 +3,41 @@
 help: ## This help dialog.
 	@awk 'BEGIN {FS = ":.*?## "} /^[a-zA-Z_-]+:.*?## / {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2 | "sort -u"}' $(MAKEFILE_LIST)
 
-run: ## Start the application
+check-docker: ## Verify Docker CLI is available
+	@command -v docker >/dev/null 2>&1 || { \
+		echo "Error: docker not found."; \
+		echo "Install Docker Desktop: https://docs.docker.com/desktop/setup/install/mac-install/"; \
+		echo "Or run without Docker: make setup-local && make run-local"; \
+		exit 1; \
+	}
+
+run: check-docker ## Start the application with Docker Compose
 	docker compose up --build --remove-orphans
 
-down: ## Stop the application
+run-local: ## Start the application locally (without Docker)
+	go run ./cmd/app
+
+down: check-docker ## Stop the application
 	docker compose down --remove-orphans
 
-setup-local: copy-config install-dependencies run ## Sets up your local environment
+setup-local: copy-config install-dependencies ## Install config and Go dependencies
+
+setup-docker: setup-local run ## Install dependencies and start with Docker Compose
 
 install-lint: ## Install Go lint
 	go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest
 
-install-dependencies: ## Install go project dependencies 
+install-dependencies: ## Install Go project dependencies
 	go mod download
-	go mod vendor
 
-copy-config: ## Copy config file
-	cp .env.dist .env
+copy-config: ## Copy config file if missing
+	@test -f .env || cp .env.dist .env
 
 lint: install-lint ## Run lint
 	golangci-lint run
 
-tests: down ## Run tests
+tests: ## Run tests
 	go test -v ./...
+
+build: ## Build the server binary
+	go build -o bin/server ./cmd/app