[FEATURE] Multi-Stage Alpine Docker Image

[ditahkk]

Feature Description

Build minimal Docker image using Alpine Linux base with multi-stage build pattern for optimal size and security.

Use Case

AWS Marketplace customers need secure, lightweight container images with fast download and startup times for cost-effective execution.

Proposed Solution

• Alpine Linux base image (~5MB)
• Multi-stage build: Build Stage (full dev environment) and Runtime Stage (minimal dependencies)
• Non-root user execution (UID 1000)
• Read-only root filesystem capability
• Target ~20MB total image size

Alternatives Considered

• Distroless base
• Ubuntu base
• Single stage build

Additional Context

• Smaller images for Marketplace distribution
• No build tools in production image
• Cached layer optimization