Add Reproducible Dependency Installation Check

[Abd-Standard]

Description

Ensure CI verifies that dependency installation is reproducible from the repository's committed lockfiles.

Acceptance Criteria

CI uses the appropriate frozen/locked installation mode.

Dependency lockfile drift is detected.

Installation failures provide actionable output.

[Praiz089017]

@Praiz089017 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I would love to resolve this issue and give it a high quality PR

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Praiz089017 to this issue.

[Osuochasam]

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

Dear maintainer, pls assign this issue to me

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

[drips-wave]

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

🧑‍💻 @Osuochasam: 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 🌊