Add a multi-wallet connect modal supporting Freighter, Albedo, and xBull wallets

[Chucks1093]

Summary

The connect wallet flow only supports a single wallet type. A multi-wallet modal that presents Freighter, Albedo, and xBull as selectable options and handles the different connection flows for each would open the app to a broader user base.

Scope

• Replace the single connect button with a modal listing Freighter, Albedo, and xBull as options with logos
• Detect which wallets are installed and mark undetected ones as 'Install' with a link to the extension
• Handle each wallet's distinct connection and signing API within the same auth challenge-verify flow
• Store the connected wallet type in localStorage so the same wallet reconnects on page reload
• Show a 'Change wallet' option in the connected wallet menu to switch between wallet types

Acceptance Criteria

• All three wallet options shown in the connect modal
• Undetected wallets show an Install link
• Correct connection API used per wallet type
• Connected wallet type persisted in localStorage
• Change wallet option reconnects using the selected wallet type

ETA: 12 hours

---

Coordinate on Telegram

[Fading-Dev]

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

Hi maintainer,I’m interested in contributing to the task and can ensure timely delivery with clean implementation.

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

[codewithzubair07]

@codewithzubair07 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

i would like to work on this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @codewithzubair07 to this issue.

[dakwa001]

@dakwa001 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi! I’d like to take this issue. I’ll go through the existing implementation, identify the root cause, and work on a clean solution before submitting a PR for review.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @dakwa001 to this issue.

[drips-wave]

Congratulations, @dakwa001! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

🧑‍💻 @dakwa001: 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 🌊