transaction modal

[hally-Ayo]

Summary

create reusable badge component for showing the current key price in creator cards and profile sections and Create a transaction pending modal shell that can be reused for Stellar transaction states later in the app.

Testing

• pnpm lint
• pnpm build
• pnpm exec prisma generate when schema or generated types changed

Checklist

• Linked issue or backlog item
• No secrets or live credentials added
• Docs updated if setup or env changed
• Change is scoped to one problem

closes #7
closes #9