fix(ci): 修复 AI Issue Helper 的 MCP 配置和响应传递问题

.github/workflows/ai-issue-helper.yml

@@ -82,7 +82,7 @@ jobs:
         id: ai
         with:
           model: 'gpt-4o-mini'
-          mcp: github
+          enable-github-mcp: true
           system-prompt: |
             你是 ECS Framework 项目的 AI 助手。
 
@@ -99,20 +99,15 @@ jobs:
             请用中文友好地回复用户的问题。
           prompt-file: prompt.txt
 
-      - name: Save AI Response
-        run: |
-          echo "${{ steps.ai.outputs.response }}" > ai_response.txt
-
       - name: Post AI Response
+        env:
+          AI_RESPONSE: ${{ steps.ai.outputs.response }}
         uses: actions/github-script@v7
         with:
           script: |
-            const fs = require('fs');
-            const response = fs.readFileSync('ai_response.txt', 'utf8');
-
             await github.rest.issues.createComment({
               owner: context.repo.owner,
               repo: context.repo.repo,
               issue_number: context.issue.number,
-              body: response
+              body: process.env.AI_RESPONSE
             });