[LiranCohen]

When WebAuthn fails to present a platform prompt, the unlock screen currently traps the user on a spinner until the 60-second safety timeout. The underlying passkey request is already abortable, but the UI exposes no way to use that lifecycle.

Show a Cancel passkey request action only while waiting for WebAuthn. It aborts the active request signal, returns to Unlock using passkey, and permits a clean retry; once wallet opening has begun, the existing non-cancellable Opening wallet state remains unchanged. The local cancellation race also settles promptly in browsers that do not honor WebAuthn abort signals.

Stack

Depends on #208. Merge #208, then this PR, then #212.

Verification

• focused cancellation, signal propagation, and retry tests pass locally
• cumulative auth tip fix(auth): serialize lock and unlock handoff #212: lint, typecheck, unit coverage, build, and E2E pass

[github-actions]

Coverage Report

Status	Category	Percentage	Covered / Total
🟢	Lines	75.77% (🎯 25%)	3506 / 4627
🟢	Statements	74.03% (🎯 25%)	3730 / 5038
🟢	Functions	74.55% (🎯 30%)	1099 / 1474
🟢	Branches	69% (🎯 29%)	2400 / 3478

File Coverage

File	Stmts	Branches	Functions	Lines	Uncovered Lines
Changed Files
src/App.tsx	69.42%	52.5%	68.96%	69.02%	72-85, 102-103, 110, 167-169, 203-208, 215-216, 226-230, 269, 301-316, 328, 334-347, 368
src/features/auth/UnlockScreen.tsx	93.47%	87.5%	100%	100%	50, 57, 73

Generated in workflow #539 for commit a69a08a by the Vitest Coverage Report Action