fix(mobile): blank Recents only on the profile tab

[iscekic]

What

The privacy cover blanked the OS app-switcher snapshot on login, agent-chat, pr-review, kilo-pass, device-sessions, share-gate and the whole profile tab. That is most of the app, so Recents looked permanently blank.

Cover the profile tab only. It is the one surface that shows the credit balance and account identity.

Changes

• isPrivacyCoverRoute() is now a single token match on (3_profile).
• The home and KiloClaw exclusions are dead branches under the new rule, so they are removed.
• screenLayout={privacyScreenLayout} is removed from the two navigators that no longer have a covered route: (app) and pr-review/[owner]/[repo]/[number]. The profile-tab navigators keep it.
• Android FLAG_SECURE now follows the same narrowed rule; iOS never called it.

Verification

pnpm format && pnpm typecheck && pnpm lint && pnpm check:unused && pnpm test pass in apps/mobile.

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (6 files)

• apps/mobile/src/lib/privacy-cover.ts
• apps/mobile/src/lib/privacy-cover.test.ts
• apps/mobile/src/components/privacy-cover-overlay.tsx
• apps/mobile/src/components/privacy-cover-overlay.mounted.test.tsx
• apps/mobile/src/app/(app)/_layout.tsx
• apps/mobile/src/app/(app)/pr-review/[owner]/[repo]/[number]/_layout.tsx

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_{Reviewed by grok-4.6 · Input: 164.4K · Output: 7.8K · Cached: 158K}

_{Review guidance: REVIEW.md from base branch main}