fix(ci): set fork eval status on approval label

Author: cursoragent

.github/workflows/eval-skill-fork.yml

@@ -70,3 +70,21 @@ For security reasons, this workflow was updated to not execute untrusted code fr
 3. Reviewing the results and adding the \`eval-skill-passed\` label if successful
 
 See [GitHub Security Lab: Preventing pwn requests](https://securitylab.github.com/research/github-actions-preventing-pwn-requests/) for more information about this security issue."
+
+  mark-manual-review-passed:
+    name: Mark fork eval as passed
+    if: >-
+      github.event.action == 'labeled'
+      && github.event.label.name == 'eval-skill-passed'
+      && github.event.pull_request.head.repo.fork == true
+    runs-on: ubuntu-latest
+    steps:
+      - name: Post success commit status
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          SHA="${{ github.event.pull_request.head.sha }}"
+          gh api "repos/${{ github.repository }}/statuses/$SHA" \
+            -f state="success" \
+            -f context="eval-skill/fork" \
+            -f description="Manual fork PR skill evaluation approved by maintainer"