Why:
Keep current upstream planning contracts and the approved dependency migration together without overwriting either entry.
Evidence:
SELF Dev doc checker validates R1-R15, U1-U8 and relative links against the merged Documents candidate.
Impact:
Merge current main and retain both planning index intents. Business implementations and acceptance histories remain unchanged.
Refs:
Documents a7ff466; Agent-System-Dev dependency-workspace and latest authoritative main.
weichen
4a26798000