test : link pr review and discord

.github/workflows/pr_revier_request.yml

@@ -0,0 +1,67 @@
+on:
+  pull_request:
+    types: [review_requested]
+
+jobs:
+  notify:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Wait for reviewers to settle
+        run: sleep 10
+
+      - name: Get unique reviewers
+        id: reviewers
+        env:
+          REVIEWERS_JSON: ${{ toJson(github.event.pull_request.requested_reviewers) }}
+        run: |
+          echo "🔍 Extracting unique reviewers..."
+          reviewers=$(echo "$REVIEWERS_JSON" | jq -r '.[].login' | sort | uniq | paste -sd "," -)
+          echo "✅ reviewers: $reviewers"
+          echo "reviewers=$reviewers" >> "$GITHUB_OUTPUT"
+
+      - name: Map to Discord IDs
+        id: map
+        run: |
+          echo "🔗 Mapping GitHub usernames to Discord IDs..."
+          declare -A USER_MAP=(
+            ["laggu"]="1269619098405441537"
+            ["sezeme"]="534088965050073089"
+            ["rlooo"]="1060181420389187715"
+            ["yuchem2"]="307875691074945024"
+            ["chsjen492"]="1021785294078480394"
+            ["HeesooJun"]="347294009548341249"
+          )
+
+          mentions=""
+
+          # reviewers를 쉼표 기준으로 배열로 다시 split
+          IFS="," read -ra reviewers <<< "${{ steps.reviewers.outputs.reviewers }}"
+
+          for login in "${reviewers[@]}"; do
+            id=${USER_MAP[$login]}
+            if [ -n "$id" ]; then
+              mentions+="<@$id> "
+            else
+              echo "⚠️ No Discord ID mapped for $login"
+            fi
+          done
+
+          echo "✅ mentions: $mentions"
+          echo "mentions=$mentions" >> "$GITHUB_OUTPUT"
+
+      - name: Send Discord Notification
+        env:
+          DISCORD_WEBHOOK_URL: ${{ secrets.DISCORD_WEBHOOK_URL }}
+          MENTIONS: ${{ steps.map.outputs.mentions }}
+          PR_URL: ${{ github.event.pull_request.html_url }}
+        run: |
+          echo "🚀 Sending Discord notification..."
+          curl -X POST -H "Content-Type: application/json" \
+          -d "{
+            \"content\": \"📣 $MENTIONS님! Pull Request 리뷰어로 지정됐습니다.\\n🔗 PR: $PR_URL\",
+            \"allowed_mentions\": {
+              \"parse\": [\"users\"]
+            }
+          }" \
+          "$DISCORD_WEBHOOK_URL"