perf(reference-data): sweep the remaining raw reads onto the session cache, ratchet to 0 (#1941)

Final consumer migration of the responsiveness plan: the 35 files still
fetching fiscal periods, settings, accounts, cash accounts, dimensions or
templates on their own now read lib/reference-data, and every client
write site invalidates the shared cache instead of refetching locally.

Settings and registries: FiscalYearsManager, FiscalPeriodEditor (period
snapshotted once per company so a revalidation cannot reset dates being
edited), BookingTemplatesPanel, ChartOfAccounts, ChartOfAccountsManager,
EditAccountDialog, CorrectionEntryDialog, StrikeLinesDialog,
InvoicePaymentAccountsSettings; the dimensions registry (DimensionsManager,
DimensionCombobox, LineDimensionFields, DimensionFilter, bookkeeping/[id])
reads useDimensions and the ad-hoc fetchDimensions/fetchDimensionsCached
helpers are deleted.

Pages and pickers: CashAccountSelector (FyPicker-shaped restore, once per
company load), use-account-names, FiscalYearGapNotice,
OpeningBalancePeriodStep, BankFileConfirmStep, ImportReviewStep, the import
page (invalidates accounts + periods after a SIE execute), customers list,
invoices list + detail, pending, salary employee, asset dispose, year-end
and periodisering pages (invalidate periods after closing), reports
DimensionPnlView (its pivot picker read the wrong payload key and was
always empty; it now populates), SkatteverketPanel, TemplatePicker,
ArticleForm (vat_registered).

Invoice dialogs and extensions: SendInvoiceDialog, PaymentBookingDialog
(init reduced to the credit-note lookup + catalogue, proposal and voucher
preview fire on open when cached; a local getSession replaces the network
getUser for the fallback CC), InvoiceInboxWorkspace, TicWorkspace,
ArcimMigrationWorkspace (invalidates after each SIE import step),
enable-banking AccountPickerDialog.

raw-reference-fetch ratchet: 35 -> 0 files.

Co-authored-by: Jakob Wennberg <311770904+jakobwennberg-oss@users.noreply.github.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

components/pending-operations/use-account-names.ts

@@ -1,39 +1,21 @@
 'use client'
 
-import { useEffect, useState } from 'react'
+import { useMemo } from 'react'
+import { useAccounts } from '@/lib/reference-data/hooks'
 
 /**
- * Account number -> account name for the proposal previews, fetched once per
- * mount for the active company. Provide the result through
- * AccountNamesContext (OperationPreview) so every preview surface (the
- * /pending queue, the chat ApprovalCard) shows "6110 Kontorsmateriel" and
- * not just the number or the bank's raw text. Display-only: a failed fetch
- * leaves the map empty and previews fall back to the number.
+ * Account number -> account name for the proposal previews. Provide the
+ * result through AccountNamesContext (OperationPreview) so every preview
+ * surface (the /pending queue, the chat ApprovalCard) shows "6110
+ * Kontorsmateriel" and not just the number or the bank's raw text.
+ * Display-only: derived from the session-cached chart (lib/reference-data),
+ * so it costs no request of its own; while the chart is unavailable the map
+ * is empty and previews fall back to the number.
  */
 export function useAccountNamesSource(): Record<string, string> {
-  const [names, setNames] = useState<Record<string, string>>({})
-  useEffect(() => {
-    let alive = true
-    void fetch('/api/bookkeeping/accounts')
-      .then((r) => r.json())
-      .then(({ data }) => {
-        if (!alive) return
-        setNames(
-          Object.fromEntries(
-            ((data ?? []) as Array<{ account_number: string; account_name: string }>).map((a) => [
-              a.account_number,
-              a.account_name,
-            ]),
-          ),
-        )
-      })
-      .catch(() => {
-        // Display-only: the number still shows, so a failure is not worth
-        // surfacing as an error the user cannot act on.
-      })
-    return () => {
-      alive = false
-    }
-  }, [])
-  return names
+  const { accounts } = useAccounts()
+  return useMemo(
+    () => Object.fromEntries(accounts.map((a) => [a.account_number, a.account_name])),
+    [accounts],
+  )
 }