chore: add Dockerfile, docker-compose, and .dockerignore for multi-service setup

Introduce a Dockerfile for building the Palmr application with multi-stage builds for both server and web components. Update docker-compose.yaml to consolidate services under a single 'palmr' service, ensuring proper health checks and environment variable configurations. Add a .dockerignore file to optimize Docker builds by excluding unnecessary files. Include a Makefile for simplified build and deployment commands.

Makefile

@@ -0,0 +1,47 @@
+.PHONY: help build start clean logs stop restart
+
+# Default target
+help:
+	@echo "🚀 Palmr - Available Commands:"
+	@echo ""
+	@echo "  make build     - Build Docker image with multi-platform support"
+	@echo "  make start     - Start the application using docker-compose"
+	@echo "  make stop      - Stop all running containers"
+	@echo "  make logs      - Show application logs"
+	@echo "  make clean     - Clean up containers and images"
+	@echo "  make shell     - Access the application container shell"
+	@echo ""
+	@echo "📁 Scripts location: ./infra/"
+
+# Build Docker image using the build script
+build:
+	@echo "🏗️  Building Palmr Docker image..."
+	@chmod +x ./infra/build-docker.sh
+	@./infra/build-docker.sh
+
+# Start the application
+start:
+	@echo "🚀 Starting Palmr application..."
+	@docker-compose up -d
+
+# Stop the application
+stop:
+	@echo "🛑 Stopping Palmr application..."
+	@docker-compose down
+
+# Show logs
+logs:
+	@echo "📋 Showing Palmr logs..."
+	@docker-compose logs -f
+
+# Clean up containers and images
+clean:
+	@echo "🧹 Cleaning up Docker containers and images..."
+	@docker-compose down -v
+	@docker system prune -f
+	@echo "✅ Cleanup completed!"
+
+# Access container shell
+shell:
+	@echo "🐚 Accessing Palmr container shell..."
+	@docker-compose exec palmr /bin/sh