fix: pin 3rd-party GitHub Actions to commit SHA digests (#11)

Author: ry-ops

.github/workflows/claude.yml

@@ -28,7 +28,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Run Claude Code
-        uses: anthropics/claude-code-action@v1
+        uses: anthropics/claude-code-action@2f8ba26a219c06cfb0f468eef8d97055fa814f97 # v1
         with:
           anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
           # Optional: Configure Claude's behavior

.github/workflows/docker-build-push.yml

@@ -36,18 +36,18 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3
 
       - name: Log in to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Extract metadata (tags, labels)
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@c299e40c65443455700f0fdfc63efafe5b349051 # v5
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
@@ -61,7 +61,7 @@ jobs:
 
       - name: Build and push Docker image
         id: build-push
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@ca052bb54ab0790a636c9b5f226502c73d547a25 # v5
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
@@ -79,4 +79,4 @@ jobs:
         run: |
           echo "Image pushed successfully!"
           echo "To update K3s deployment, run:"
-          echo "kubectl rollout restart deployment/<deployment-name> -n <namespace>"
+          echo "kubectl rollout restart deployment/<deployment-name> -n <namespace>"