Add multi-platform Docker build support for ARM64 and AMD64

Author: alexjcoles

.github/workflows/docker.yml

@@ -49,6 +49,7 @@ jobs:
       uses: docker/build-push-action@v5
       with:
         context: .
+        platforms: linux/amd64,linux/arm64
         push: true
         tags: ${{ steps.meta.outputs.tags }}
         labels: ${{ steps.meta.outputs.labels }}

docker-compose.yml

@@ -1,6 +1,6 @@
 services:
   claude-monitor:
-    image: ghcr.io/amphora/claude-code-usage-monitor:latest
+    image: ghcr.io/amphora/claude-code-usage-monitor:docker
     container_name: claude-usage-monitor
     stdin_open: true
     tty: true