Context

Part of kcenon/common_system#685 (Wave 1, P0). Documentation reference: common_system.

Problem (P0)

The .kr.md docs exist structurally but are stubs (e.g. ARCHITECTURE.kr 4KB vs 31KB, API_REFERENCE.kr 2KB vs 3.9KB) -> bilingual sync is structural-only, content missing.

Acceptance Criteria

• each core .kr.md reaches >= 60% of its English counterpart in real content
• README.kr.md reaches >= 70% of README.md

Notes

Docs-only; no build or workflow files involved. Good low-risk pilot.

Derived from the 2026-05-30 multi-agent cross-system level-matching analysis (workflow wf_0a968699-e07). Reference systems: documentation=common_system, code-structure=monitoring_system, tests/examples=container_system.