fix: strip wrapper debug annotations before jq validation in test

When use_wrapper=true, @actions/exec writes stackql's stdout directly to
the wrapper process's stdout AND the wrapper emits ::debug:: annotations
via core.debug(). Since the JSON output has no trailing newline, the debug
text is appended on the same line (e.g. [{...}]::debug::StackQL exited...).

Strip all ::name::value GitHub Actions workflow commands from captured
output before piping to jq.

https://claude.ai/code/session_01Y8NseCm28GqE8nQ1Yvg5aa

Author: claude

.github/workflows/setup-stackql-test.yml

@@ -35,6 +35,12 @@ jobs:
         echo "Registry list output:"
         echo "$OUTPUT"
 
+        # When the wrapper is active, @actions/exec writes stackql's stdout directly to the
+        # wrapper process's stdout, and core.debug() appends ::debug:: annotations immediately
+        # after (on the same line, since the JSON has no trailing newline). Strip all GitHub
+        # Actions workflow commands (::name::value) before handing the output to jq.
+        CLEAN_JSON=$(echo "$OUTPUT" | sed 's/::[a-z-]*::.*$//' | grep -v '^[[:space:]]*$')
+
         # Validate JSON structure: array of objects each with provider and version keys
-        echo "$OUTPUT" | jq -e 'type == "array" and (all(.[]; has("provider") and has("version")))' > /dev/null
+        echo "$CLEAN_JSON" | jq -e 'type == "array" and (all(.[]; has("provider") and has("version")))' > /dev/null
         echo "Registry list validated successfully."