Refactor build.yml for Chunkah and image handling

Removed invalid 'image-archive' argument and adjusted annotations for Chunkah run.

.github/workflows/build.yml

@@ -107,7 +107,7 @@ jobs:
           # Das kritische ostree-Label explizit auslesen, falls vorhanden
           OSTREE_DIFFID=$(podman inspect $BASE_IMAGE --format '{{index .Config.Labels "ostree.final-diffid"}}' 2>/dev/null || echo "")
 
-          # Chunkah-Lauf: Annotation explizit übergeben, falls vorhanden
+          # Chunkah-Lauf: Annotation explizit übergeben
           ANNOTATION_ARG=""
           if [ ! -z "$OSTREE_DIFFID" ]; then
             ANNOTATION_ARG="--annotation ostree.final-diffid=$OSTREE_DIFFID"
@@ -127,6 +127,24 @@ jobs:
             --output /outputs/image.ociarchive \
             --rootfs /inputs
 
+          # WIEDER EINGEFÜGT: Das OCI-Archiv in Podman laden, damit die Action es findet
+          podman rmi $BASE_IMAGE || true
+          podman load -i ./chunkah-out/image.ociarchive
+          
+          # Image sauber taggen
+          IMAGE_ID=$(podman images --filter "dangling=true" --format "{{.ID}}" | head -n 1)
+          if [ -z "$IMAGE_ID" ]; then
+            IMAGE_ID=$(podman images --format "{{.ID}} {{.Repository}}" | grep -v "chunkah" | head -n 1 | awk '{print $1}')
+          fi
+          podman tag $IMAGE_ID $BASE_IMAGE
+
+      # WIEDER EINGEFÜGT: Die restlichen Tags für Datum, etc. lokal erzeugen
+      - name: Tag for registry
+        run: |
+          for tag in ${{ steps.metadata.outputs.tags }}; do
+            podman tag ${{ env.IMAGE_NAME }}:${{ env.DEFAULT_TAG }} ${{ env.IMAGE_NAME }}:$tag
+          done
+
       - name: Login to GitHub Container Registry
         uses: docker/login-action@4907a6ddec9925e35a0a9e82d7399ccc52663121 # v3
         if: github.event_name != 'pull_request' && github.ref == format('refs/heads/{0}', github.event.repository.default_branch)
@@ -148,7 +166,7 @@ jobs:
           tags: ${{ steps.metadata.outputs.tags }}
           username: ${{ env.REGISTRY_USER }}
           password: ${{ env.REGISTRY_PASSWORD }}
-          image-archive: ./chunkah-out/image.ociarchive
+          # KORREKTUR: "image-archive" entfernt, da ungültig.
           extra-args: --compression-format=zstd --compression-level=5
 
       - name: Install Cosign