Implement XdrCodec for TransactionMeta

[Emrys02]

TransactionMeta contains the precise changes made to the ledger during a transaction's execution. Decoding it is vital for indexing and inspecting state changes.

Implementation Guidelines

Key Files: crates/core/src/xdr/codec.rs.

• Implement the XdrCodec trait for the TransactionMeta type imported via stellar-xdr.

Expectations

What done looks like: The application can deserialize TransactionMeta XDR strings into programmatic types.

For any question, reach me on Discord: emry_ss

[OluRemiFour]

@OluRemiFour has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

I've gone through your requirement thoroughly, I will fix this issues and implement a clean pull request to match your acceptance criteria

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

[drips-wave]

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

🧑‍💻 @OluRemiFour: 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 🌊