fix(sdk-custody): Implement custody dispute filing and tracking in SDK

[Kevin737866]

Description

Full dispute lifecycle: file, check status, view resolution.

Acceptance Criteria

• fileDispute(attestationId, reason, evidenceHash, bondAmount)
• getDisputeStatus(disputeId) returns DisputeRecord
• getRecentDisputes(custodian, limit)
• Bond validation before submission; event listeners for resolution
• Tests: dispute filing, status tracking, bond validation

Files to Modify

• sdk/src/custody.ts
• sdk/src/types.ts

[temieehade-coder]

@temieehade-coder has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello Maintainer, I can fix this issue

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[tobiadewola41-eng]

@tobiadewola41-eng has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

I would like to work on this issue now

ℹ️ Repo Maintainers: To accept this application, review their application or assign @tobiadewola41-eng to this issue.

[Gentleslyl2006]

@Gentleslyl2006 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello maintainer, i am idea. I would love to work on this issue. can i get it assigned?

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Gentleslyl2006 to this issue.