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a9c7300135f0188daa5bce5491e2daf2dd8da8ae move-only: refactor CreateTransactionInternal (josibake) adc6ab25bba42ce9e7ed6bd7599aabb6dead6987 wallet: use CRecipient instead of CTxOut (josibake) Pull request description: Broken out from #28201 --- In order to estimate fees properly, we need to know what the final serialized transaction size will be. This PR refactors `CreateTransactionInternal` to: * Get the serialized size directly from the `CRecipient`: this sets us up in a future PR to calculate the serialized size of silent payment `CTxDestinations` (see797e21c8c1) * Use the new `GetSerializeSizeForRecipient` to move the serialize size calculation to *before* coin selection and the output creation to *after* coin selection: this also sets us up for silent payments sending in a future PR in that silent payments outputs cannot be created until after the inputs to the transaction have been selected Aside from the silent payments use case, I think this structure logically makes more sense. As a reminder, move-only commits are best reviewed with something like `git diff -w --color-moved=dimmed-zebra` ACKs for top commit: S3RK: reACK a9c7300135f0188daa5bce5491e2daf2dd8da8ae achow101: ACK a9c7300135f0188daa5bce5491e2daf2dd8da8ae rkrux: tACK [a9c7300](a9c7300135) Tree-SHA512: 412e1764b98f7428c8530c3a68f55e32063d6b66ab2ff613e1c7e12d49b049807cb60055cfe7f7e8ffe7ac7f0f9931427cbfd3efe7d4f97a5a0f6d1bf1aaac58