kwallet-query --write-password returns success but does not create the folder
or persist the secret, so saved host passwords were silently lost and share
enumeration failed with NT_STATUS_LOGON_FAILURE. Write/delete now go through
the kwalletd6 D-Bus API via qdbus6 (open/createFolder/writePassword). Reads
stay on kwallet-query (they work). Also drop smbclient -N (was forcing an
anonymous session) and silence KWallet read stderr. Adds qt6-tools dep.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Jaroslav Beneš
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