Construct the "Fund Organization" Transaction Builder

[AlAfiz]

Description

When a user wants to donate to an organization's public budget, the frontend must construct the raw Soroban XDR transaction and send it to Freighter.

Acceptance Criteria

• Create a useFundOrg React hook.
• The hook accepts orgId and amount.
• Utilize StellarSdk.Contract to build the fund_org contract call envelope.
• Simulate the transaction against the Soroban RPC to calculate required fees and resources.
• Pass the simulated XDR to freighterApi.signTransaction().
• Submit the signed transaction to the network and return the result.

Technical Details

• The frontend should NEVER sign the transaction itself using a secret key. It must strictly delegate the XDR to Freighter.

[ObaHacker]

@ObaHacker has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

Hiii, Good Morning I love your product and I would love to solve this issue

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[Husten150]

@Husten150 has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

i would like to work on these

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Husten150 to this issue.

[drips-wave]

Congratulations, @Husten150! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on April 29, 2026.

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