fix: resolve merge conflicts in CI workflow

Resolved conflicts between fix/registry-login-env and origin/main:
- Use single-line apt-get install
- Use simplified short SHA command
- Use 'Build and push image' step name from main

All registry login changes preserved (env vars approach).

.gitea/workflows/ci.yaml

@@ -41,18 +41,14 @@ jobs:
     runs-on: golang
     steps:
       - name: Install Node.js and Docker
-        run: |
-          apt-get update
-          apt-get install -y nodejs docker.io
+        run: apt-get update && apt-get install -y nodejs docker.io
 
       - name: Checkout code
         uses: actions/checkout@v4
 
       - name: Get short SHA
         id: sha
-        run: |
-          SHORT_SHA=$(git rev-parse --short HEAD)
-          echo "short_sha=${SHORT_SHA}" >> $GITHUB_OUTPUT
+        run: echo "short_sha=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
 
       - name: Registry login
         run: |
@@ -62,7 +58,7 @@ jobs:
           REGISTRY_USER: ${{ secrets.FORGEJO_REGISTRY_USER }}
           REGISTRY_TOKEN: ${{ secrets.FORGEJO_REGISTRY_TOKEN }}
 
-      - name: Build Docker image
+      - name: Build and push image
         run: |
           docker build --no-cache \
             -t "${IMAGE}:${{ steps.sha.outputs.short_sha }}" \