indicate dev build

.github/workflows/manual-build.yml

@@ -24,6 +24,18 @@ jobs:
           version=$(python3 -c "import version; print(f'dev-{version.__version__}')")
           echo "VERSION=$version" >> $GITHUB_ENV
 
+      # Extract branch name and latest commit SHA
+      - name: Extract branch name and commit SHA
+        id: branch_info
+        run: |
+          echo "BRANCH_NAME=${{ github.event.inputs.branch }}" >> $GITHUB_ENV
+          echo "COMMIT_SHA=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
+
+      # Create a file indicating this is a dev build
+      - name: Create DEV_BUILD file
+        run: |
+          echo "${{ env.BRANCH_NAME }}-${{ env.COMMIT_SHA }}" > DEV_BUILD
+
       # Set up Docker
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2