Add Safe Search Index Rebuild Tooling

[Cedarich]

Complexity: Medium (150)

Description
app/backend/src/search/ serves search over backend entities, but there is no supported way to
rebuild the index after a schema change or a bad partial write. Recovery currently means manual
intervention with no progress visibility or resumability.

Acceptance Criteria

• An admin-triggered rebuild runs in bounded batches without blocking live search
• Rebuild progress is observable and the operation is resumable
• A dry run reports document counts without mutating the index
• Concurrent rebuild requests are rejected rather than interleaved
• The runbook for rebuilds is documented

[wolfyres]

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

Hi maintainer, I've got solid experience solving similar issues, kindly assign this to me.

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

[shadrackmanfred]

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

Hi Maintainer! I'm a senior developer with experience building high-quality, production-ready software. I'd love to take on this issue and deliver a clean, well-tested solution that aligns with the project's standards. Please assign it to me—I'm ready to get started and contribute effectively.

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

[simeontech]

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

This is an issue I would be really glad to hop on as a contributor, as I'd offer solution

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

[ositaemmanuel653-netizen]

@ositaemmanuel653-netizen has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I am confident that I can implement this having worked on similar issues in the past.Big Dev allow me take on this issue.ETA 4 hours.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @ositaemmanuel653-netizen to this issue.

[drips-wave]

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

🧑‍💻 @wolfyres: 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 🌊