Use claude_args to set opus-4-6 model in CI workflows (#2531)

## Summary - Add `claude_args: --model claude-opus-4-6` to the pr-review-responder workflow so it uses Opus 4.6 #skip-bugbot ## Test plan - Verify the workflow YAML is valid - Confirm both CI workflows specify `claude-opus-4-6` via `claude_args` 🤖 Generated with [Claude Code](https://claude.com/claude-code)  --- <a href="https://app.devin.ai/review/dyad-sh/dyad/pull/2531" target="_blank"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://static.devin.ai/assets/gh-open-in-devin-review-dark.svg?v=1"> <img src="https://static.devin.ai/assets/gh-open-in-devin-review-light.svg?v=1" alt="Open with Devin"> </picture> </a>   --- ## Summary by cubic Set the pr-review-responder GitHub Actions workflow to use Claude Opus 4.6 by adding claude_args: --model claude-opus-4-6, so PR review runs on the intended model. <sup>Written for commit f7bb9047549c88d41888e49dd98cf6ae865966ea. Summary will update on new commits.</sup>  Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Use claude_args to set opus-4-6 model in CI workflows (#2531)
58451425 · Will Chen · GitHub · 7a173b21 · 58451425
--- a/.github/workflows/pr-review-responder.yml
+++ b/.github/workflows/pr-review-responder.yml
@@ -195,6 +195,7 @@ jobs:
        with:
          claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
          github_token: ${{ secrets.GITHUB_TOKEN }}
+          claude_args: --model claude-opus-4-6
          prompt: |
            /dyad:pr-fix ${{ steps.pr-info.outputs.pr_number }}