[Spike] Implement signal edit history with version diffing (Module #82)

[Darkvader-ship-it]

Estimated Effort: 3 weeks / 7 days

Impacted Subsystems / Files:

• app/api/explore/route.ts
• app/explore/page.tsx
• components/crt-collection-preview.tsx

Context & Problem Statement:
In app/api/explore/route.ts (and associated files app/explore/page.tsx, components/crt-collection-preview.tsx), Edits are destructive with no audit. Addressing Implement signal edit history with version diffing is required to harden system stability, optimize execution speed, and eliminate technical debt across the dApp codebase.

Technical Requirements & Scope:

1. Audit the current implementation in app/api/explore/route.ts and app/explore/page.tsx against the goal: Implement signal edit history with version diffing.
2. Implement the change as an isolated, well-tested module in app/explore/page.tsx, preserving components/crt-collection-preview.tsx wiring.
3. Add type-safe schemas, input validation, and structured error handling.
4. Add automated unit and integration tests covering Implement signal edit history with version diffing behavior end-to-end.

Multi-File Change Surface:
Directly alters code logic in app/api/explore/route.ts, app/explore/page.tsx, and UI wiring in components/crt-collection-preview.tsx.

Acceptance Criteria:

• Implement signal edit history with version diffing is delivered and verified on Stellar testnet.
• Zero regressions in adjacent API routes, stores, and UI components.
• Shipped behind feature flag phase-82 with a documented rollback path.

Suggested Approach / Investigation Steps:

1. Benchmark target baseline metrics and profile the hot path.
2. Implement the domain change with tests.
3. Verify end-to-end on testnet and monitor for regressions.

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[DonaldXoftDev]

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

I will like to work on this issue please assign it to me 🙏🙏

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[Emoji-dot]

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

i would like to work on this issue

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[Marvy54]

@Marvy54 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hello, I’d love to work on this issue. Kindly assign it to me. I’ll ensure to submit a pr fix asap

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[midexol]

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

Hi maintainer I would like to work on this issue

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[KingFRANKHOOD]

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

Hello maintainer, I would like to pick up this issue.

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[drips-wave]

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

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