[Chore]: 리뷰어 선정 시 슬랙 알림 workflow 적용

.github/workflows/pr-reviewer-noti.yml

@@ -0,0 +1,67 @@
+name: PR Reviewer Notification
+
+on:
+  pull_request:
+    types: [review_requested]
+
+jobs:
+  specific_review_requested:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Get Reviewers List
+        id: reviewers
+        uses: actions/github-script@v6
+        with:
+          script: |
+            const fs = require('fs');
+            const workers = JSON.parse(fs.readFileSync('.github/workflows/reviewers.json'));
+            const mention = context.payload.pull_request.requested_reviewers.map((user) => {
+                const login = user.login;
+                const mappedValue = workers[login];
+                return mappedValue ? `<@${mappedValue}>` : `No mapping found for ${login}`;
+            });
+            return mention.join(', ');
+          result-encoding: string
+
+      - name: Send Slack Notification
+        id: slack_notification
+        uses: slackapi/[email protected]
+        with:
+          channel-id: ${{ secrets.PR_NOTI_CHANNEL }}
+          payload: |
+            {
+                "text": "pr review request",
+                "blocks": [
+                    {
+                        "type": "section",
+                        "text": {
+                            "type": "mrkdwn",
+                            "text": "리뷰어로 할당되었습니다.\n • 제목: ${{ github.event.pull_request.title }}\n • 리뷰어: ${{ steps.reviewers.outputs.result }}\n • 링크: <${{ github.event.pull_request.html_url }}|리뷰하러 가기>"
+                        }
+                    }
+                ]
+            }
+        env:
+          SLACK_BOT_TOKEN: ${{ secrets.PR_BOT_TOKEN }}
+
+      - name: Comment on Slack Thread
+        uses: slackapi/[email protected]
+        with:
+          channel-id: ${{ secrets.PR_NOTI_CHANNEL }}
+          payload: |
+            {
+              "text": "PR 코멘트 알림",
+              "blocks": [
+                {
+                  "type": "section",
+                  "text": {
+                    "type": "mrkdwn",
+                    "text": "| *작성자*: @${{ github.event.comment.user.login }}\n| *코멘트 내용*: _${{ github.event.comment.body }}_\n| *관련 PR*: <${{ github.event.issue.html_url }}|${{ github.event.issue.title }}>"
+                  }
+                }
+              ]
+            }
+        env:
+          SLACK_BOT_TOKEN: ${{ secrets.PR_BOT_TOKEN }}

.github/workflows/reviewer.json

@@ -0,0 +1,4 @@
+{
+  "minseong0324": "U083UEXJLLC",
+  "kongnayeon": "U083BDHR279"
+}