* ci: stage heavy checks and measure affected-test selection
* fix(ci): exercise the real Git boundary in unit selection planning
* Harden review cancellation and CI demand reporting
* style: format codebase
* style: format codebase
* refactor: extract skill install dialog footer and content
Extract footer and content sections from SkillInstallDialog and
SkillInstallManagementDialog into separate components for improved
maintainability and clarity of component responsibilities.