[2026 PWA] Define offline read-only behavior for cached account data

[Nanle-code]

Objective

Clearly distinguish cached data from live data and disable unsafe write actions offline.

Target area

service worker, storage, and network-aware components

Acceptance criteria

• The objective is implemented with clear handling for invalid input, unsupported environments, and failure paths.
• Automated tests cover the primary flow, at least one boundary case, and at least one failure case.
• User-facing documentation or developer guidance is updated, including compatibility, security, or migration notes where applicable.

Source: .github/roadmap-issues-2026-07-29.json.

[Emelie-Dev]

@Emelie-Dev has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi, I would love to work on this issue

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

[Ugooweb]

@Ugooweb has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Please assign this issue to me my eta is 4 hours

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

[drips-wave]

Congratulations, @Emelie-Dev! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

🧑‍💻 @Emelie-Dev: 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.

Warning

When opening a PR, please link it to this issue to ensure it gets tracked accurately. Points are awarded when this issue is marked as completed by the maintainer.

🤠 Repo maintainers: Please keep an eye on the contributor's progress and review their work before the due date. You can manage this issue, including adjusting its complexity and points, here.

🌊 Happy Wave 🌊