- external-integration 마일스톤 아카이브 추가 (01_provider_intake_registry, 02+01_adapter_boundary) - HTTP 핸들러에 외부 통합 관련 로직 추가 - HTTP 핸들러 테스트 케이스 보강 - HTTP 라우터 설정 추가 - 외부 통합 마일스톤 문서 업데이트
- Add mattermost notification sink adapter - Update notification service and scheduler tests - Archive completed agent-task files for 04+01,02,03_adapter_boundary - Rename plan/review files to archive format
- Add JIRA, Mattermost, Plane adapter implementations - Add Mattermost client tests - Update core server setup and main.go - Improve config and validation tests - Enhance HTTP handlers and middleware tests - Update work item provider and notification tests - Add protoSocket tasks tests - Update agent-task and agent-roadmap documentation
