[FE-72] Build the locations management page

[yusuftomilola]

Overview

Location-based ownership is a core README capability, but there is no locations page — assets cannot be organized by physical place from the UI.

Tasks

• Create app/(dashboard)/locations/page.tsx with a tree view (building → floor → room).
• Support create, edit, delete, and moving a location within the hierarchy.
• Show asset counts per location and link through to a filtered asset list.
• Block deletion where assets are still located there, explaining why.
• Consider @dnd-kit (already installed) for drag-to-reparent.
• Handle deep hierarchies without breaking layout on mobile.

Acceptance Criteria

• The location tree renders and supports full CRUD.
• Asset counts are accurate and link to filtered results.
• Unsafe deletion is refused with a clear message.

Dependencies

Backend from [BE-84].

Notes for Contributors

Comment below to be assigned.

[Hasidasbuilds]

@Hasidasbuilds has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi, I'd like to work on this issue.

I've worked on blockchain and Web3 projects, including Stellar and Soroban smart contracts, alongside traditional full-stack web development. I'm comfortable moving between frontend, backend, and on-chain work.

I understand what's being asked here and I'm confident I can implement this correctly and efficiently.

Please assign this issue to me, I'd be happy to contribute.

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

[drips-wave]

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

🧑‍💻 @Hasidasbuilds: 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.

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[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Official Campaign | FWC26 campaign!

@Hasidasbuilds's PR #1226 was approved and merged by @yusuftomilola.

🏆 @Hasidasbuilds: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (376 total points). Track your full progress on GrantFox.

👏 Great work, @Hasidasbuilds! Keep contributing to DistinctCodes.

[drips-wave]

This issue has been completed by @Hasidasbuilds as part of the Stellar Wave Program's 7th Wave 🥳

😎 @Hasidasbuilds: 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.

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