Harden directive/filter edge-case handling and add executable edge matrix coverage#3

beobles with Copilot wants to merge 6 commits into

copilot/refatoracao-arquitetural-view-enginebeobles/php-template-engine:copilot/refatoracao-arquitetural-view-enginefrom

copilot/refactoringbeobles/php-template-engine:copilot/refactoringCopy head branch name to clipboard