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Remove answer-agent/ subfolder (moved to separate repo)

Remove nested memory-manager/ subfolder (now at root)

Move memory-manager weights to repo root (enables HF download tracking)

Update self-references after repo rename to Memory-R2

Clarify two-checkpoint roles: memory-manager vs answer-agent

Upload Memory-R2 7B answer-agent checkpoint (sft_cont_step55, SFT+RL)

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Upload Memory-R2 7B memory-manager checkpoint (32sess_champion_v2, LoGo-GRPO)

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initial commit