Refresh bug: on mount the basket is empty for a beat before it hydrates
from the URL. The fetch effect nulled comparisonData on that transient
empty urnKey, then the one-shot 'SSR covers it' skip suppressed the
refetch — leaving the page blank on reload. The effect is now gated on
isInitialized, never blanks on empty (the render already shows the empty
state when nothing is selected), and decides fetch-vs-skip by whether it
already holds each requested school's data (SSR or a prior fetch).
Perf: useComparison ran a useSWR('/api/compare') whose result nothing
consumed — dead weight that fired on every page (Navigation + Toast are
global) whenever the basket was non-empty, and duplicated ComparisonView's
own fetch on the compare page. Removed; the hook now exposes basket state
only.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0146VHeLAWjDVE2B5uU67jCB
