fix: refresh portfolio balances without hard reload

[rossgalloway]

Summary

• disable caching for the Enso balances endpoint in both API entrypoints
• opt the client-side Enso balances fetch out of browser cache reuse
• refetch wallet balance queries whenever the app window regains focus
• refetch wallet balances once when the portfolio route becomes active
• add regression coverage for the Enso cache header, the wallet-balance focus refetch policy, and the portfolio-entry refresh policy

Context

This splits the portfolio freshness work out from the Safe/Katana overlay branch.

The reported symptom was that portfolio holdings could stay stale across normal reloads or tab switches, while a hard refresh fixed the issue. That pointed to cached balance responses and insufficient foreground refetch behavior.

Test Plan

• bun run tslint
• bun run lint:fix
• bunx vitest run src/components/pages/portfolio/hooks/usePortfolioEntryRefresh.helpers.test.ts src/components/shared/hooks/balanceQueryConfig.test.ts src/components/shared/hooks/useBalancesQuery.test.ts src/components/shared/hooks/useBalancesQueries.test.ts api/enso/cache.test.ts

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Project	Deployment	Actions	Updated (UTC)
yearnfi	Ready	Preview, Comment	Apr 28, 2026 3:03pm

1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
yearnfi-nextjs	Ignored	Preview	Apr 28, 2026 3:03pm

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Scanned Files

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