[Medium] Implement credential sharing interface

[Josie123-Dev]

Task Description

Create comprehensive credential sharing interface:

• Recipient input
• Credential selection
• Duration selection
• Share confirmation
• Share status display

Requirements

• Recipient address input
• Multi-credential selection
• Duration configuration
• Confirmation dialog
• Status tracking

Acceptance Criteria

• Input works
• Selection works
• Duration is set
• Confirmation is required
• Status is tracked

[bbkenny]

Hi maintainer. I'd like to work on this issue.

My approach:

• Design an intuitive UI for credential sharing with clear permission controls
• Implement proper access control checks before any share operation
• Add sharing history tracking and revocation capabilities
• Write tests for the sharing flow including edge cases (expired credentials, revoked access)
• Ensure the interface follows accessibility standards (WCAG 2.1 AA)

I'll focus on clean, maintainable code with proper test coverage once assigned..

[grantfox-oss]

🦊 GrantFox — @bbkenny has been assigned to this issue as part of the Third Campaign campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #63)
2. Your PR will be reviewed by the GuardZero144 maintainers

Good luck! Track your progress on GrantFox.

[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Third Campaign campaign!

@bbkenny's PR #172 was approved and merged by @Josie123-Dev.

🏆 @bbkenny: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (707 total points). Track your full progress on GrantFox.

👏 Great work, @bbkenny! Keep contributing to GuardZero144.