wallet, test: best block locator matches scan state follow-ups #32580

1. 
   rkrux commented at 2:50 pm on May 21, 2025: contributor

   Few follows-ups from #30221: Use SetLastBlockProcessedInMem more in AttachChain, add not null locator check in WriteBestBlock. Add log and few assertions in wallet_reorgstore test.
2. wallet, test: best block locator matches scan state follow-ups

   Few follows-ups from #30221: Use `SetLastBlockProcessedInMem` more in
   `AttachChain`, add not null locator check in `WriteBestBlock`. Add log
   and few assertions in `wallet_reorgstore` test.

   3112fb5c5b
3. 
   DrahtBot commented at 2:50 pm on May 21, 2025: contributor

   The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

   Code Coverage & Benchmarks

   For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/32580.

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4. rkrux marked this as ready for review on May 21, 2025
5. 
   Prabhat1308 commented at 4:25 pm on June 10, 2025: contributor

   ACK 3112fb5
6. DrahtBot added the label CI failed on Jun 26, 2025

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rkrux DrahtBot Prabhat1308

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