FE-183 Add a sitemap.xml route for public-facing pages

[BigBen-7]

Track
Frontend

Difficulty
Trivial

Description
There is no sitemap, which limits search engine indexing. Add a dynamic sitemap using Next.js App Router's sitemap.ts convention that includes all public event URLs.

Acceptance Criteria

• A route at /sitemap.xml returns a valid XML sitemap.
• Sitemap includes static routes (home, events, contact, privacy, terms).
• Sitemap dynamically includes all active public event URLs.
• Sitemap is referenced in robots.txt.

[Qoder-Undefined]

@Qoder-Undefined has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hi maintainer can I work on this

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Congratulations, @Qoder-Undefined! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

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[drips-wave]

This issue has been completed by @Qoder-Undefined as part of the Stellar Wave Program's 5th Wave 🥳

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