Issue 43: Secrets never appear in logs — audit tracing spans

[Nanle-code]

Labels: security

Description:
Audit src/utils/logging.rs and command handlers so secret keys, passphrases, and XDR with signatures are never logged at info level.

Acceptance criteria:

Grep-based test or lint rule document.
Redaction helper for public keys only in debug logs.
Files:

src/utils/logging.rs
src/commands/wallet.rs
src/commands/deploy.rs

[Jenola344]

@Jenola344 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hi maintainer, I will love to work on this

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Jenola344 to this issue.

[drips-wave]

Congratulations, @Jenola344! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @Jenola344: 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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