a050716123
The custom passphrase entry/confirm UI now lives in the enterprise secure backup module behind the SecureBackupSetupEntryPoint seam. Reverts the setup presenter, view, state, state machine, state provider, and events to the auto-generated-key-only flow, deletes CustomPassphraseDerivations and the temporary strings, and drops the well-known and enterprise-test dependencies the feature required. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>