Create portfolio overview page with loading, empty, and error states

[GuiBibeau]

User Story

As a portfolio user, I want a responsive portfolio overview page so that I can quickly understand what assets I hold on desktop and mobile.

Context

This is the first real user-facing portfolio page. It should make strong use of the normalized asset model and feel solid even before advanced features land.

Acceptance Criteria

• A portfolio overview page renders connected wallet assets
• The page has clear loading, empty, and error states
• The layout works well on desktop and mobile
• Assets are displayed in a structured table or card-based view
• The page reads clearly for wallets with both many assets and no assets
• The UI is easy to extend later with prices and charts

Notes

• Prioritize clarity over visual complexity
• Create reusable components where it obviously helps
• Think about how this page will evolve into the main dashboard

Out of Scope

• Token price data
• Portfolio charts
• Swap actions

Size

Medium