Precache critical routes for offline-first navigation

[RUKAYAT-CODER]

Background

Critical routes are not precached, so first offline navigation fails. Precache them during install.

Files to modify (2-3)

src/serviceWorker.ts
src/utils/pwaUtils.ts

Acceptance Criteria

Implemented across the listed files

Unit/integration tests added or updated and passing

No regression; follows project coding standards

[judithJn]

@judithJn has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

hello Maintainer, please can i work on this issues

ℹ️ Repo Maintainers: To accept this application, review their application or assign @judithJn to this issue.

[drips-wave]

Congratulations, @judithJn! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

🧑‍💻 @judithJn: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

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