feat: add base for sign message

[zoruka]

Description

Please include a brief summary of the change.

Type of change

• [ ] Chore (non-breaking change that addresses non-functional tasks, maintenance, or code quality improvements)
• [ ] 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)

Associated Issues

For Linear issues: Closes APKT-xxx For GH issues: closes #...

Showcase (Optional)

https://github.com/user-attachments/assets/f551bd8d-2a07-427e-9cb8-b88f25c38972

Checklist

• [ ] Code in this PR is covered by automated tests (Unit tests, E2E tests)
• [ ] My changes generate no new warnings
• [ ] I have reviewed my own code
• [ ] I have filled out all required sections
• [ ] I have tested my changes on the preview link
• [ ] Approver of this PR confirms that the changes are tested on the preview link

[changeset-bot[bot]]

⚠️ No Changeset found

Latest commit: 6879455d3dac188dadcf31b50e99b2b2245542b3

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