fix(promote): 修复跨 job 输出值在 JavaScript script 中注入为空的问题;

将 promote job 的 github-script 步骤从直接在 script 内使用
\${{ needs.validate.outputs.* }} 表达式注入（该方式在 actions/github-script@v7
中会导致值为空），改为通过环境变量传递后由 process.env 读取，
确保 release_id 和 tag_name 正确跨 job 传递。

🤖 Generated with [Claude Code](https://github.com/claude), [CodeX](https://openai.com), [Gemini](https://github.com/apps/gemini-code-assist)
Co-Authored-By: Aurelius Huang<threefish.ai@gmail.com>

Author: ThreeFish-AI

.github/workflows/promote.yml

@@ -114,10 +114,14 @@ jobs:
       # Step 2: 更新 GitHub Release: prerelease=false, make_latest=true
       # -----------------------------------------------------------------------
       - name: Promote release to stable
+        env:
+          RELEASE_ID: ${{ needs.validate.outputs.release_id }}
+          TAG_NAME: ${{ needs.validate.outputs.tag_name }}
         uses: actions/github-script@v7
         with:
           script: |
-            const releaseId = ${{ needs.validate.outputs.release_id }};
+            const releaseId = parseInt(process.env.RELEASE_ID);
+            const tagName = process.env.TAG_NAME;
             const { owner, repo } = context.repo;
 
             await github.rest.repos.updateRelease({
@@ -129,7 +133,7 @@ jobs:
             });
 
             core.notice(
-              `✅ Release #${releaseId} promoted to stable (make_latest=true)`
+              `✅ Release #${releaseId} (${tagName}) promoted to stable (make_latest=true)`
             );
 
       # -----------------------------------------------------------------------