[TASK] Add detailed design documents to English and Korean documentation indexes

[daeyoung-jeong-lge]

Task Description

Add detailed design documents to English and Korean documentation indexes.

Checklist

• Draft add detailed design documents to english and korean documentation indexes design content
• Check consistency with VEL architectural boundaries
• Identify related FR/SEC/SAF requirements

Related Requirement

Part of FEATURE #108

Implementation Guidelines

Keep the design aligned with the Vehicle Evidence Layer scope. Do not introduce coordination, lifecycle execution, process/container/hardware control, policy decisions, or final OEM vehicle decisions.

Testing Method

Review the detailed design for consistency with the architecture and mapped requirements.