chore(release.yml): add environment variable for GITHUB_TOKEN and imp…

…rove release workflow with cache and validation steps

perf(release.yml): optimize release notes generation and add file existence check to ensure build success

.github/workflows/release.yml

@@ -7,9 +7,8 @@ on:
 
 permissions:
   contents: write
-
-env:
-  GH_TOKEN: ${{ github.token }}
+  issues: write    # Release 노트 작성을 위해
+  pull-requests: write  # Release 관련 PR 필요시
 
 jobs:
   build:
@@ -30,19 +29,40 @@ jobs:
         with:
           node-version-file: '.nvmrc'
 
+      - name: Cache pnpm modules
+        id: pnpm-cache # use this to check for `cache-hit` ==> if: steps.pnpm-cache.outputs.cache-hit != 'true'
+        uses: actions/cache@v4
+        with:
+          path: ~/.pnpm-store
+          key: ${{ runner.os }}-pnpm-${{ hashFiles('**/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-
+
       - name: Install dependencies
+        if: steps.pnpm-cache.outputs.cache-hit != 'true'
         run: pnpm install
 
       - name: Build plugin
         run: pnpm run build
+        continue-on-error: false
 
       - name: Create release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          tag="${GITHUB_REF#refs/tags/}" \
-
-          git log $(git describe --tags --abbrev=0)..HEAD --oneline > release-notes.md \
-
+          tag="${GITHUB_REF#refs/tags/}"
+          git log "$(git describe --tags --abbrev=0)"..HEAD --oneline > release-notes.md
+    
+          # 파일 존재 확인
+          files=("manifest.json" "main.js" "styles.css")
+          for file in "${files[@]}"; do
+            if [ ! -f "$file" ]; then
+              echo "Error: 빌드 결과물 '$file'을 찾을 수 없습니다. 빌드 단계가 성공적으로 완료되었는지 확인해주세요."
+              exit 1
+            fi
+          done
+
           gh release create "$tag" \
-            --title="$tag" \
+            --title="Release $tag" \
             --notes-file="release-notes.md" \
             manifest.json build/main.js build/styles.css