- health.tsx: Add Account button + AddAccountDialog, Refresh button with
tooltip and spinner calling refreshAccounts mutation, inline account
error state instead of full-page error, updated empty state text, and
active-agent warning on delete confirm
- AccountCard.tsx: Show KeyRound button when credentials/token invalid,
opens UpdateCredentialsDialog pre-populated with account identity
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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