Add detailed JSDoc documentation to UpdateEncryptedKeyResult interface

[Copilot]

Description

Addresses review feedback on PR #1007 to add comprehensive JSDoc documentation to the UpdateEncryptedKeyResult interface, following the established pattern from StoreEncryptedKeyResult.

The UpdateEncryptedKeyResult interface previously had minimal documentation. Updated to include:

• @typedef annotation for the interface
• Detailed property descriptions for id, pkpAddress, and updatedAt fields
• Consistent formatting with other result interfaces in the codebase

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

• CodeQL security scan passed with no alerts
• Code review completed

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

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[Copilot]

Pull request overview

This PR adds comprehensive JSDoc documentation to the UpdateEncryptedKeyResult interface, addressing review feedback from PR #1007. The changes bring this interface's documentation in line with established patterns used throughout the wrapped-keys package, particularly matching the style of StoreEncryptedKeyResult.

Key Changes:

• Enhanced JSDoc documentation for UpdateEncryptedKeyResult interface with @typedef annotation and detailed property descriptions
• Added descriptions for id, pkpAddress, and updatedAt properties

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[Copilot]

The property documentation order doesn't match the actual interface property order. For consistency with other interfaces in this file (e.g., StoreEncryptedKeyResult at lines 119-120), the properties should be documented in the same order they appear in the interface.

Suggested order:

@property { string } id The unique identifier (UUID V4) of the encrypted private key that was updated
@property { string } pkpAddress The LIT PKP Address that the key was linked to; this is derived from the provided pkpSessionSigs
@property { string } updatedAt ISO 8601 timestamp of when the key was updated

This matches the interface property order: id, pkpAddress, updatedAt (lines 168-170).