[opt](memory) Replace TabletMeta object map with SoA CompactTabletMetaStore#62086

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dataroaring:compact-tablet-meta

Commits on Apr 3, 2026

[opt](memory) Replace TabletMeta object map with SoA CompactTabletMetaStore

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claude
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[opt](memory) Address review feedback: remove unused array, reduce allocations

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Commits on Apr 16, 2026

[opt](memory) Avoid TabletMeta allocation in buildPartitionInfoBySkew hot loop
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