[ReplayBuffer] add ReplayBuffer with various StorageBackend#1490

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YanhuiDua wants to merge 2 commits intoInternLM:rl_designfrom

YanhuiDua:dyh/rl_design

Commits on Feb 11, 2026

[ReplayBuffer] add ReplayBuffer with various StorageBackend: FIFO, Staleness, or Database(implement in the future)
YanhuiDua
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Commits on Feb 12, 2026

[ReplayBuffer] optimize implementation of ReplayBuffer
YanhuiDua
committed