feat: assign issue or PR to project on setting milestone

.github/workflows/99-assign-to-project-on-milestone-set.yml

@@ -0,0 +1,34 @@
+name: Assign to Project on Milestone Set
+
+on:
+  issues:
+    types: [milestoned]
+  pull_request:
+    types: [milestoned]
+
+jobs:
+  assign_to_project:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Assign issue or PR to project if milestone set
+        run: |
+          # Set variables
+          ISSUE_OR_PR=${{ github.event.issue || github.event.pull_request }}
+
+          # Directly set the project ID here
+          PROJECT_ID="18"
+
+          # Get the repository details
+          REPO_NAME=${{ github.repository }}
+
+          # If project ID exists, assign the issue or PR to the project
+          if [ -n "$PROJECT_ID" ]; then
+            curl -s -X POST -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
+              -d "{\"project_url\": \"https://api.github.com/repos/$REPO_NAME/projects/$PROJECT_ID\", \"content_id\": \"$ISSUE_OR_PR\", \"content_type\": \"issue\"}" \
+              "https://api.github.com/repos/$REPO_NAME/projects/$PROJECT_ID/columns/cards"
+          else
+            echo "Project ID not found!"
+          fi