D-009: Implement offline-first architecture with service workers

[Nanle-code]

Overview

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Implementation Details

Step 1: Enhance service worker

• Cache all static assets
• Implement stale-while-revalidate
• Add background sync

Step 2: Implement offline queue

• Queue operations when offline
• Store in IndexedDB
• Retry on reconnect

Step 3: Add conflict resolution

• Version stamps on data
• Merge strategies
• User conflict UI

Step 4: Build offline indicators

• Network status detection
• Offline banner
• Sync progress indicator

Step 5: Test offline scenarios

• Simulate offline mode
• Test queue processing
• Verify conflict resolution

[Anieblin]

@Anieblin has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Hello Maintainer, I'd love to work on this issue

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

[drips-wave]

Congratulations, @Anieblin! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 30, 2026.

🧑‍💻 @Anieblin: 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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