Show gas estimation error warning banners in network_sync_checker

[godamongstmen897]

Problem & Goal

Inspect simulation results inside network_sync_checker and display fee warning banners to the user.

Context & Components

• Target Repository: escrow-frontend
• Module/Component: network_sync_checker (Active network status validator)

Implementation Details

1. Review the existing codebase inside the escrow-frontend directory.
2. Locate the source files relating to network_sync_checker.
3. Implement the feature logic/validation rules step-by-step.
4. Ensure code conforms to codebase patterns (lints, formats, types).

Verification & Testing Requirements

• Validation check: Assert warning displays if fee limits exceed standard bounds.
• Add comprehensive test cases matching these validation requirements.
• Ensure all other existing project tests continue to compile and pass.

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Note: This issue is completely self-contained and does not block or require any other issues to be resolved.

[drips-wave]

Congratulations, @jonah-Elisha10! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

🧑‍💻 @jonah-Elisha10: 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

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[gloriaibrahim2002-blip]

@gloriaibrahim2002-blip has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi maintainer, please I would like to work on this issue.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @gloriaibrahim2002-blip to this issue.

[Shindailulu]

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

hello maintainer, i'd love to work on this issue

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[Biokes]

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

Hi maintainer, I will like to work on this issue

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

[drips-wave]

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

🧑‍💻 @Biokes: 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 🌊