ci: use CN endpoint for PR reviews

Author: SaladDay

.github/workflows/ai-pr-review.yml

@@ -76,7 +76,7 @@ jobs:
       - name: Run Claude Code review
         uses: anthropics/claude-code-action@v1.0.102
         env:
-          ANTHROPIC_BASE_URL: https://api.minimax.io/anthropic
+          ANTHROPIC_BASE_URL: https://api.minimaxi.com/anthropic
           PR_NUMBER: ${{ github.event.pull_request.number }}
           PR_TITLE: ${{ github.event.pull_request.title }}
           PR_URL: ${{ github.event.pull_request.html_url }}