Disputes: Add dispute audit log history viewer in SLADisputesView

[mxllv]

Problem

Operators resolving SLA disputes cannot view past administrative comments or status changes.

Acceptance Criteria

• Render chronological audit log stream in Dispute Details drawer.
• Show timestamp, admin username, and action taken for each entry.
• Include resolution note diffs.

[chikawobishie-sketch]

@chikawobishie-sketch has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hello maintainer, I will love to work on this issues, kindly assign it to me

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

[francescoricc1]

@francescoricc1 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

assign me asap please

ℹ️ Repo Maintainers: To accept this application, review their application or assign @francescoricc1 to this issue.