[Frontend] [Enhancement] Add copy-to-clipboard functionality for Hashes and CIDs

[Tybravo]

🎯 Goal

Add quick-copy buttons next to all complex strings (CIDs, hashes, signatures) for better UX.

📋 Requirements

• Implement the feature as described in the goal.
• Ensure integration matches the architecture defined in SUMMARY_TYPESCRIPT.md.
• Handle relevant loading and error states gracefully.

🔧 Technical Scope

• React Copy-to-Clipboard API

📂 Affected Path

frontend/components/ui/CopyToClipboard.tsx

✅ Acceptance Criteria

• Clicking copies the exact string.

🔗 PR Requirements

• PR description must include: Closes #[issue_id]