[LiranCohen]

Summary

• remove delayed PIN completion timers that could fire after edits or navigation
• route keyboard, input, and paste completion through one synchronous helper
• rely on the existing auth-provider and screen busy guards instead of adding a second component-level submission latch
• settle parent-owned PIN and passkey rejections through one shared event-handler helper

Stack

Depends on #207. Merge #217, #207, then this PR.

Verification

• focused PIN and unlock 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	75.68% (🎯 25%)	3499 / 4623
🟢	Statements	73.98% (🎯 25%)	3723 / 5032
🟢	Functions	74.6% (🎯 30%)	1099 / 1473
🟢	Branches	68.96% (🎯 29%)	2396 / 3474

File Coverage

File	Stmts	Branches	Functions	Lines	Uncovered Lines
Changed Files
src/components/ui/PinInput.tsx	80.7%	67.53%	91.66%	83.5%	58, 87-116, 176
src/features/auth/UnlockScreen.tsx	95.23%	89.47%	100%	100%	50, 57

Generated in workflow #537 for commit 2e3cf5e by the Vitest Coverage Report Action