fix(workflow): align first-interaction input keys (#821)

* fix(workflow): use valid first-interaction input keys

* fix(workflows): wire shared label policy path in label jobs

.github/workflows/pr-auto-response.yml

@@ -26,6 +26,8 @@ jobs:
 
       - name: Apply contributor tier label for issue author
         uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
+        env:
+          LABEL_POLICY_PATH: .github/label-policy.json
         with:
           script: |
             const script = require('./.github/workflows/scripts/pr_auto_response_contributor_tier.js');
@@ -40,8 +42,8 @@ jobs:
       - name: Greet first-time contributors
         uses: actions/first-interaction@a1db7729b356323c7988c20ed6f0d33fe31297be # v1
         with:
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
-          issue-message: |
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          issue_message: |
             Thanks for opening this issue.
 
             Before maintainers triage it, please confirm:
@@ -50,7 +52,7 @@ jobs:
             - Sensitive values are redacted
 
             This helps us keep issue throughput high and response latency low.
-          pr-message: |
+          pr_message: |
             Thanks for contributing to ZeroClaw.
 
             For faster review, please ensure: