add action

action.yml

@@ -0,0 +1,14 @@
+name: 'Generate Short SHA'
+description: 'Generates a short version of the commit SHA'
+outputs:
+  short:
+    description: 'Short SHA'
+runs:
+  using: 'composite'
+  steps:
+    - shell: bash
+      run: |
+        SHORT_SHA=$(echo ${{ github.sha }} | cut -c1-7)
+        echo "short=$SHORT_SHA" >> $GITHUB_OUTPUT
+        echo "DEBUG: Short SHA = $SHORT_SHA"
+