AIEngineeringStandard v2.2.0

What's Changed

• feat: add repository execution and GitHub Actions CI by @eaglesjo in #25
• fix: remove duplicate execution contract CI step by @eaglesjo in #26
• feat: harden repository execution conformance by @eaglesjo in #27
• feat: formalize execution failure and remote state lifecycle by @eaglesjo in #28
• chore: keep Korean as the only localized language by @eaglesjo in #29
• docs: synchronize Korean documentation with current standard by @eaglesjo in #30
• docs: finalize v2.1 release status by @eaglesjo in #31
• docs: trim operational details from README by @eaglesjo in #32
• docs: finalize Korean release documentation by @eaglesjo in #33
• feat(2.2): introduce installable package distribution by @eaglesjo in #34

Full Changelog: v2.1.0...v2.2.0