Add `SequentialDataBase` as a better `SimpleDatabase`#129

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ZZZank wants to merge 5 commits intoCleanroomMC:1.12from

ZZZank:id-handling

Commits on Oct 23, 2024

Commits on Oct 27, 2024

add `SequentialDataBase`, ideally all `SimpleDatabase` usage should be redirected to this new class
ZZZank
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Commits on Oct 28, 2024

look for the first false, not true
ZZZank
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