Add metadata to build workflow

.github/workflows/build-container.yaml

@@ -8,6 +8,9 @@ jobs:
   docker:
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
 
@@ -27,8 +30,19 @@ jobs:
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            seaduboi/broadcast-box
+            ghcr.io/${{ github.repository }}
+
       - name: Build and push
         uses: docker/build-push-action@v5
         with:
+          context: .
           push: true
-          tags: seaduboi/broadcast-box:latest
+          tags: |
+            type=raw,value=latest
+          labels: ${{ steps.meta.outputs.labels }}