refactor: miscellaneous type safety and lookup improvements#7136

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PastaPastaPasta merged 3 commits intodashpay:developfrom

PastaPastaPasta:refac-misc

Feb 13, 2026

Commits on Feb 12, 2026

refactor: use size_t consistently in VarInt bitset serialization

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refactor: use CCoinsViewMemPool in IsCollateralValid for input resolution

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claude
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refactor: introduce safe index-based member lookup for DKG justification handling

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