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"Ny faktura" was the slowest form to fill in: the list page lazy-loaded NewInvoiceDialog, which lazy-loaded InvoiceEditor (ssr:false), which then issued four requests on mount (customers, articles, chart of accounts, company settings) and hid the ENTIRE form behind a spinner until the customers query alone resolved, even though the other three had landed. Reopening the dialog paid all of it again. - InvoiceEditor reads customers, articles, posting accounts and settings from lib/reference-data (seeded by the dashboard layout). The whole-form spinner gate is gone; the customer picker shows "Hämtar kunder ..." only while the list is genuinely uncached. Company settings are applied once per editor instance through a guarded effect, so a background revalidation can never re-run the create-mode prefills over notes or a reference the user has typed. Inline customer/article creation invalidates the shared cache (awaited, so the new option resolves before the line points at it). Customers now come through /api/customers, which masks the personnummer column; nothing in the editor rendered it. - NewInvoiceDialog imports the editor statically: the dialog is itself a next/dynamic chunk on the list page, so this is one deferred chunk download when the dialog opens instead of two sequential ones. - New strings: invoice_editor.loading_customers (sv + en). Per "Ny faktura": 2 sequential chunk loads -> 1; blocking mount requests 4 -> 0 (cached) with every field populated on the first render. raw-reference-fetch ratchet: 46 -> 45 files. SendInvoiceDialog and PaymentBookingDialog (init() flows) stay in the baseline for a later PR. Co-authored-by: Jakob Wennberg <311770904+jakobwennberg-oss@users.noreply.github.com> Co-authored-by: Claude Fable 5 <noreply@anthropic.com>