refactor(cicd): add step 1 of Gitea Action

.gitea/workflows/deliver.yml

@@ -0,0 +1,26 @@
+name: Wallset Pipeline
+
+on:
+  pull_request:
+    paths:
+      - 'assets/**'
+
+env:
+  ENTRY_FOLDER: assets
+  PACKAGE_NAME: ""  # <- à adapter
+  RELEASE_VERSION: v${{ github.run_number }}
+  PACKAGE_REGISTRY_URL: https://your.gitea.instance/api/packages/...
+
+jobs:
+  detect-changes:
+    runs-on: ubuntu-latest
+    outputs:
+      changed: ${{ steps.set.outputs.changed }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Detect changed packs
+        id: set
+        run: |
+          PACKS=$(git diff --name-only ${{ github.event.before }} ${{ github.sha }} | grep '^assets/' | cut -d '/' -f2 | sort -u | jq -R -s -c 'split("\n")[:-1]')
+          echo "changed=$PACKS" >> $GITHUB_OUTPUT