Fix permissions on wstest directories before artifact upload

Docker containers may create files as root, making them read-only
to the GitHub Actions runner user. The verified upload action needs
write access to create CHECKSUMS.sha256 in the artifact directory.

Add chmod -R u+w steps before both client and server report uploads.

Note: This work was completed with AI assistance (Claude Code).

Author: oberstet

.github/workflows/wstest.yml

@@ -203,6 +203,14 @@ jobs:
           echo "==> Without-NVX client reports:"
           ls -la .wstest/clients-without-nvx/ | head -10 || echo "Not found"
 
+      # Fix permissions on wstest directories (Docker may create files as root)
+      # The verified upload action needs write access to create CHECKSUMS.sha256
+      - name: Fix permissions on client reports
+        if: always()
+        run: |
+          chmod -R u+w .wstest/clients-with-nvx/ 2>/dev/null || true
+          chmod -R u+w .wstest/clients-without-nvx/ 2>/dev/null || true
+
       - name: Upload client reports (with-nvx)
         uses: wamp-proto/wamp-cicd/actions/upload-artifact-verified@main
         if: always()
@@ -415,6 +423,14 @@ jobs:
           echo "✅ All server tests completed for BOTH NVX configurations"
           echo "======================================================================"
 
+      # Fix permissions on wstest directories (Docker may create files as root)
+      # The verified upload action needs write access to create CHECKSUMS.sha256
+      - name: Fix permissions on server reports
+        if: always()
+        run: |
+          chmod -R u+w .wstest/servers-with-nvx/ 2>/dev/null || true
+          chmod -R u+w .wstest/servers-without-nvx/ 2>/dev/null || true
+
       - name: Upload server reports (with-nvx)
         uses: wamp-proto/wamp-cicd/actions/upload-artifact-verified@main
         if: always()