Split backend and frontend e2e smoke suites and make them required in CI

[devJaja]

Goal: Meaningful green CI.
Why it matters: Full-stack e2e is heavy; making it required couples unrelated failures.
Proposed scope:

• Independent smoke (registry/list/create) and heavy (WS/lifecycle) jobs, both required but decoupled, with retries and flake tracking.
  Acceptance criteria:
• Frontend-only or backend-only PRs can pass CI.
• Flake auto-retry limits configured.

[Jenola344]

@Jenola344 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi maintainer, I will love to work on this project kindly assign me

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Jenola344 to this issue.

[MarcusDavidG]

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

I can handle this issue and will like to work on it, Please assign thank you.

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

[drips-wave]

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

🧑‍💻 @MarcusDavidG: 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 🌊

[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox!

@MarcusDavidG's PR #465 was approved and merged by @devJaja.

🏆 @MarcusDavidG: You earned 40 FoxPoints for this contribution! Your current tier: Builder (1,628 total points). Track your full progress on GrantFox.

👏 Great work, @MarcusDavidG! Keep contributing to Epta-Node.