Implement Fund Escrow Modal with Stellar Transaction

[KuchiMercy]

Complexity: High (200 points)

Description

Create a modal for funding escrows that handles Stellar wallet signing and transaction submission.

Requirements and Context

TermsSection has "Fund Escrow" button but no implementation
Must integrate with Freighter/Albedo wallet for signing
Show transaction preview before signing
Display transaction status and confirmation

Suggested Execution

Create FundEscrowModal.tsx in apps/frontend/components/escrow/modals/
Display funding amount, fees, and total
Integrate with WalletContext for transaction signing
Add transaction status tracking (pending, success, failed)
Show Stellar transaction hash on success

Test and Commit

Test wallet connection flow
Test transaction signing UX
Verify error handling for wallet rejection

Example Commit Message

feat(frontend): add fund escrow modal with Stellar wallet integration

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This issue has been added to the Stellar Wave Program and is worth 200 Points.

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[chukwudiikeh]

@chukwudiikeh has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

I’m applying to build the Fund Escrow Modal. I have significant experience building React frontends for Stellar-based apps, specifically handling the bridge between user intent and wallet signatures (Freighter/Albedo). I will ensure the funding flow is clear, secure, and resilient to network edge cases.

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

[mijinummi]

@mijinummi has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

Hello maintainers, I am a full stack developer with experience in building scalable systems, I can hack this if assigned

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

[drips-wave]

Congratulations, @mijinummi! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on February 26, 2026.

🧑‍💻 @mijinummi: 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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