c45a30ec14
CRITICAL PERF BUG: Every hook did storage.list() (1 HTTP call fetching ALL items with values, discarding values, returning only keys) then storage.get() for EACH key (N individual HTTP calls re-fetching values one by one). With 6 entries + contacts + tags, Registratura page fired ~40 sequential HTTP requests on load, where 3 would suffice. Fix: Replace list()+N*get() with single exportAll() call in ALL hooks: - registratura/registry-service.ts (added exportAll to RegistryStorage interface) - address-book/use-contacts.ts - it-inventory/use-inventory.ts - password-vault/use-vault.ts - word-templates/use-templates.ts - prompt-generator/use-prompt-generator.ts - hot-desk/use-reservations.ts - email-signature/use-saved-signatures.ts - digital-signatures/use-signatures.ts - ai-chat/use-chat.ts - core/tagging/tag-service.ts (uses storage.export()) Additional fixes: - registratura/use-registry.ts: addEntry uses optimistic local state update instead of double-refresh; closeEntry batches saves with Promise.all + single refresh - server-rack.tsx: reversed slot rendering so U1 is at bottom (standard rack numbering, per user's physical rack) Performance impact: ~90% reduction in HTTP requests on page load for all modules