Add test service to CI build loop

The test service was missing from the CI app list, so its Docker
image was never rebuilt on push (no Node.js for sexp.js parity tests).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/ci.yml

@@ -58,7 +58,7 @@ jobs:
               fi
             fi
 
-            for app in blog market cart events federation account relations likes orders; do
+            for app in blog market cart events federation account relations likes orders test; do
               IMAGE_EXISTS=\$(docker image ls -q ${{ env.REGISTRY }}/\$app:latest 2>/dev/null)
               if [ \"\$REBUILD_ALL\" = true ] || echo \"\$CHANGED\" | grep -q \"^\$app/\" || [ -z \"\$IMAGE_EXISTS\" ]; then
                 echo \"Building \$app...\"