Settings::getDefaultPath and AddressBook::getDefaultPath each hand-rolled the
same per-platform #ifdef (Win SHGetFolderPath / macOS Application Support /
XDG ~/.config) with the DRAGONX_APP_NAME variant suffix. Route both through
util::Platform::getConfigDir() instead — one place owns the split — and add
the missing __APPLE__ branch to getConfigDir so it too returns the
macOS-native ~/Library/Application Support/<AppName>.
This also fixes a latent macOS inconsistency: transaction_history_cache
already resolves via getConfigDir(), which lacked the __APPLE__ branch, so on
macOS the tx cache landed in ~/.config while settings/addressbook went to
~/Library/Application Support. Now all three agree. No migration needed:
Linux/Windows paths are unchanged, and macOS packaging is not yet shipped.
Removes ~50 lines of duplicated #ifdef.
Full-node + Lite build clean; ctest 1/1; hygiene clean.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
DanS
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