Issue 091: Implement Vercel domain configuration

[temma02]

Description
Attach domains to Vercel projects and deployments when requested.

Requirements and context

• Must be secure, tested, and documented where applicable
• Should stay reviewable and fit the current monorepo structure

Suggested execution

• Create branch: issue-091-implement-vercel-domain-configuration
• Keep changes scoped to the issue and reference the task IDs in the PR

Implement changes

• Support project and deployment-level domain assignment
• Return verification requirements for DNS setup
• Handle known Vercel domain errors cleanly

Test and commit

• Run the most relevant tests for the touched service or UI surface
• Include screenshots or request/response examples when the change is user-facing
• Call out edge cases, assumptions, and any follow-up work

Example commit message
feat: add vercel domain configuration

Guidelines

• Prefer small, reviewable PRs
• Keep naming and data contracts consistent with the spec docs
• Preserve responsive and accessible behavior for frontend work

[GideonBature]

@GideonBature has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

Greetings, Please I will love to work on this issue.

I have experience building on stellar.

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

[Folex1275]

@Folex1275 has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

I'd like to work on this please

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Folex1275 to this issue.

[drips-wave]

Congratulations, @Folex1275! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on March 30, 2026.

🧑‍💻 @Folex1275: 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 🌊

[drips-wave]

This issue has been completed by @Folex1275 as part of the Stellar Wave Program's 3rd Wave 🥳

😎 @Folex1275: You earned 200 Points for completing this issue! After the current Wave ends, you'll be eligible for a percentage of the Wave's reward pool based on the percentage of total points you've earned. Learn more here. You can also Leave a review to share your experience working on this issue.

🧑‍💻 Repo maintainers: How'd the contributor do? Leave a review to share your experience working with them.