feat(engine): implement self-reflection (reflector) stage in multi-agent pipeline

- Added ReflectorAgent for meta-cognition and critical review between Research and Writing
- Updated WriterAgent to explicitly address reflection critiques
- Introduced 'g1nation.enableReflection' configuration setting
- Added comprehensive integration tests for the self-reflection stage
- Documented design decisions in ADR-0010 and related discussion records

docs/records/ConnectAI/discussions/2026-05-13_volumes-data-project-antigravity-connectai-이-프로젝트-작업-할-거야.md

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+# Discussion: /Volumes/Data/project/Antigravity/ConnectAI 이 프로젝트 작업 할 거야.
+
+## User Request Summary
+/Volumes/Data/project/Antigravity/ConnectAI 이 프로젝트 작업 할 거야.
+
+## Interpreted Intent
+Capture a meaningful project discussion automatically instead of requiring manual record selection.
+
+## Questions
+No explicit question was captured.
+
+## Main Discussion
+- 프로젝트를 시작하시려는군요. 해당 경로를 기준으로 작업을 진행하겠습니다. 어떤 부분부터 논의하거나 어떤 목표를 가지고 시작하고 싶으신지 말씀해 주십시오.
+
+## Decisions
+No decisions captured yet.

docs/records/ConnectAI/discussions/2026-05-13_volumes-data-project-antigravity-connectai-이-프로젝트-하위-폴더-포함해서.md

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+# Discussion: /Volumes/Data/project/Antigravity/ConnectAI 이 프로젝트 하위 폴더 포함해서 딥 리서치 해줘. 최적화 할 부분...
+
+## User Request Summary
+/Volumes/Data/project/Antigravity/ConnectAI 이 프로젝트 하위 폴더 포함해서 딥 리서치 해줘. 최적화 할 부분이 뭐가 더 있을지.
+
+## Interpreted Intent
+Capture a meaningful project discussion automatically instead of requiring manual record selection.
+
+## Questions
+No explicit question was captured.
+
+## Main Discussion
+- /Volumes/Data/project/Antigravity/ConnectAI 이 프로젝트 하위 폴더 포함해서 딥 리서치 해줘. 최적화 할 부분이 뭐가 더 있을지.
+
+## Decisions
+No decisions captured yet.