chore: git cache cleanup

.github/workflows/auto-add-to-project.yml

@@ -0,0 +1,34 @@
+name: Auto-add issues and PRs to Project
+
+on:
+  issues:
+    types: [opened, reopened]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.issue.number || github.event.pull_request.number }}
+  cancel-in-progress: false
+
+jobs:
+  add-to-project:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Determine project URL presence
+        id: project_check
+        run: |
+          if [ -n "${{ secrets.PROJECT_URL }}" ]; then
+            echo "has_project=true" >> "$GITHUB_OUTPUT"
+          else
+            echo "has_project=false" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Add issue or PR to project
+        if: steps.project_check.outputs.has_project == 'true'
+        uses: actions/add-to-project@244f685bbc3b7adfa8466e08b698b5577571133e # v1.0.2
+        continue-on-error: true
+        with:
+          project-url: ${{ secrets.PROJECT_URL }}
+          github-token: ${{ secrets.ADD_TO_PROJECT_PAT || secrets.GITHUB_TOKEN }}
+
+      - name: Skip summary
+        if: steps.project_check.outputs.has_project == 'false'
+        run: echo "PROJECT_URL secret missing; skipping project assignment." >> "$GITHUB_STEP_SUMMARY"