sneak af9568db90 fix: merge wallets by identity, not whole-field, in saveState() (closes #304) ...

backgroundRefresh() mutates state.wallets in place (addr.balance/ensName/
tokenBalances via refreshBalances()), so a whole-field diff on `wallets`
marked the entire array "changed" the moment any balance moved and wrote
back background's own copy -- loaded before its multi-second network
round trip -- clobbering a wallet another page added, or resurrecting one
another page deleted, in that window. That is DoD item 2 on the issue,
still unmet by the prior whole-field merge.

`wallets` is now merged structurally: by wallet identity (xpub for
hd/xprv wallets, address for key wallets, both already enforced unique),
then by address identity within each wallet. A leaf background actually
changed applies on top of storage's current copy; membership added or
removed by another page applies independently, since it no longer
collides with `wallets` as a single field. Every other persisted field
stays a whole-field diff -- no code path mutates them the way
backgroundRefresh() mutates wallets, so there is no matching defect to
fix there.

2026-08-20 14:14:29 +00:00

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