Before this commit, /balance rendered the BalanceOnboardingCard plus the
period selector + evolution chart + accounts table whenever the user had
no accounts or no snapshot. The lower three components surfaced their
own empty states, producing 3 stacked "no data" messages under the
onboarding card.
Lifts the (accountsCount, hasAnySnapshot) computation out of the inline
IIFE and uses a single isEmpty branch: empty profiles see only the
BalanceOnboardingCard; populated profiles see the full overview.
No logic change — only JSX restructuring. Tests covering useBalanceOverview
and BalanceOnboardingCard remain green (61 tests passing).
Suggestion S2 from PR #184 review (#187).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
372a785834