wallet, refactor: rename file from migrate to legacybdb #34910

1. 
   rkrux commented at 1:54 pm on March 24, 2026: contributor

   The wallet/migrate.h|cpp file contain all the code related to the Berkeley DB that was used in the legacy wallets. Although it’s true that this code is used only within the context of wallet migration but the name of the file is not exact.

   This patch renames the file to legacybdb so that the intent is clearer in the call sites. I felt this rename might be necessary so that the name doesn’t conflict with the upcoming wallet/migration.h|cpp files in PR 34909.

2. wallet, refactor: rename file from migrate to legacybdb

   The wallet/migrate.h|cpp file contain all the code related to the
   Berkeley DB that was used in the legacy wallets. Although it's true
   that this code is used only within the context of wallet migration
   but the name of the file is not exact.
   
   This patch renames the file to legacybdb so that the intent is clearer in the
   call sites. I felt this rename might be necessary so that the name
   doesn't conflict with the upcoming wallet/migration.h|cpp files in PR 34909.

   517e36b696
3. 
   DrahtBot commented at 1:54 pm on March 24, 2026: contributor

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   Conflicts

   Reviewers, this pull request conflicts with the following ones:

   • #34909 (wallet, refactor: modularise wallet by extracting out legacy wallet migration by rkrux)

   If you consider this pull request important, please also help to review the conflicting pull requests. Ideally, start with the one that should be merged first.

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