Presentation-only migration of KeyExportDialog::render (reveals a private or
viewing key) — a secret-handling modal:
- struct-form BeginOverlayDialog(OverlayDialogSpec{BlurFloat, cardWidth cardW,
idSuffix keyexport}) replacing the legacy positional overload
- replace the bespoke red-bordered "WARNING" box with material::DialogWarningHeader
(user-approved) so the key-export warning matches the import-key reference; passes
the correct per-key-type body key (private vs viewing)
- remove the two dividers (after the warning, above the Close footer)
- 4 StyledButton -> TactileButton (retry / reveal / show-hide / close)
The secret path is byte-for-byte unchanged: the z_exportkey/dumpprivkey/
z_exportviewingkey (and lite exportPrivateKeys) fetch + their secureWipeLiteSecret
calls, the "*"-masking when hidden, the Show/Hide toggle, copySecretToClipboard
(auto-clearing), the QR generate/cache/releaseQr, and the secret-clear on BOTH exit
paths (Close button + the post-EndOverlayDialog dismiss teardown).
Verified: build + ctest + hygiene clean; a 2-lens adversarial review
(secret-hygiene / presentation-fund) returned zero findings, proving every
secret-handling path diffs byte-for-byte identical to HEAD.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>