Enhanced the Wikipedia plugin manifest with metadata fields. Improved misc/tag-release.sh with argument parsing, error handling, and push option. Refactored misc/update-sdk-schema.sh for better portability, argument parsing, and error checking. Updated tests/async2sync.py to use type annotations, fixed regex for 'await', ensured output directory creation, and improved path handling for compatibility.

Enhanced the Wikipedia plugin manifest with metadata fields. Improved misc/tag-release.sh with argument parsing, error handling, and push option. Refactored misc/update-sdk-schema.sh for better portability, argument parsing, and error checking. Updated tests/async2sync.py to use type annotations, fixed regex for 'await', ensured output directory creation, and improved path handling for compatibility. #411