Implement WordPress version checking
Squashed 'lib/aihrus/' content from commit 639684c

git-subtree-dir: lib/aihrus
git-subtree-split: 639684c58140e0b2711958c4a973e230d9ba4e0c
Merge commit 'ec9ab0f69f29acc82fbd7f1cdd482425d4a8be34' as 'lib/aihrus'