SCIX-847 Handle blocked browser storage gracefully#841

Draft

thostetler wants to merge 7 commits intoadsabs:masterfrom

thostetler:scix-847-browser-storage

Commits on Apr 9, 2026

feat(SCIX-847): add safe browser storage utility and wire Zustand persist
thostetler
committed
fix(SCIX-847): replace all direct storage calls with safe wrappers
thostetler
committed
feat(SCIX-847): add storage availability UI components
thostetler
committed
fix(SCIX-847): center browser help links on storage unavailable notice
thostetler
committed
fix(SCIX-847): update Safari cookie help link to current URL
thostetler
committed
fix(SCIX-847): render storage degraded banner outside layout container
thostetler
committed
fix(SCIX-847): fall back to in-memory store when localStorage is blocked
thostetler
committed