Add ENCRYPTION to supported key purposes

[PastaPastaPasta]

Summary

Added ENCRYPTION as a supported key purpose option in the key configuration constants.

Changes

• Added 'ENCRYPTION' to the KEY_PURPOSES array in src/ui/components.ts
• This expands the available key purposes from 4 to 5 options: AUTHENTICATION, ENCRYPTION, TRANSFER, VOTING, and OWNER

Details

The ENCRYPTION purpose is now available as a valid key purpose option alongside the existing purposes. This allows users to configure keys with encryption capabilities in addition to the previously supported authentication, transfer, voting, and owner purposes.

Summary by CodeRabbit

• New Features
  • Encryption is now available as a supported key purpose option.

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[coderabbitai]

📝 Walkthrough

Walkthrough

A new key purpose, ENCRYPTION, is added to the KEY_PURPOSES array in the components module. This expands the set of supported key purposes from four to five options while maintaining existing functionality.

Changes

Cohort / File(s)	Summary
Key Purposes Enhancement src/ui/components.ts	Added 'ENCRYPTION' to KEY_PURPOSES array, expanding supported purposes from ['AUTHENTICATION', 'TRANSFER', 'VOTING', 'OWNER'] to include encryption capability

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 Hop hop hooray, encryption's here to stay!
One more purpose in the array,
Keys dancing in the digital fray,
Security strengthened every day! 🔐

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately and concisely describes the main change: adding ENCRYPTION to the KEY_PURPOSES array to enable it as a selectable option in the UI.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing touches

• 📝 Generate docstrings

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