auto-label npu issue

.github/workflows/label_issue.yml

@@ -13,5 +13,18 @@ jobs:
       - env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           ISSUE_URL: ${{ github.event.issue.html_url }}
+          ISSUE_TITLE: "${{ github.event.issue.title }}"
         run: |
           gh issue edit $ISSUE_URL --add-label "pending"
+
+          # auto-add label for npu
+          NPU_KEYWORDS=("npu" "ascend" "昇腾")
+          LABEL_NPU="npu"
+          ISSUE_TITLE_LOWER=$(echo "$ISSUE_TITLE" | tr '[:upper:]' '[:lower:]')
+
+          for keyword in "${NPU_KEYWORDS[@]}"; do
+            if [[ "$ISSUE_TITLE_LOWER" == *"$keyword"* ]] && [[ "$ISSUE_TITLE_LOWER" != *"input"* ]]; then
+              gh issue edit "$ISSUE_URL" --add-label "$LABEL_NPU"
+              break
+            fi
+          done