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/bookkeeping/ChartOfAccounts.tsx

@@ -1,7 +1,9 @@
 'use client'
 
-import { useState, useEffect } from 'react'
+import { useState } from 'react'
 import { createClient } from '@/lib/supabase/client'
+import { useAccounts } from '@/lib/reference-data/hooks'
+import { invalidateReferenceData } from '@/lib/reference-data/invalidate'
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card'
 import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
@@ -21,24 +23,13 @@ const CLASS_LABELS: Record<number, string> = {
 }
 
 export default function ChartOfAccounts() {
-  const [accounts, setAccounts] = useState<BASAccount[]>([])
-  const [loading, setLoading] = useState(true)
+  // Session-cached chart (lib/reference-data), shared with every picker.
+  const { accounts, isLoading: loading } = useAccounts()
   const [expandedClasses, setExpandedClasses] = useState<Set<number>>(new Set())
   const [searchQuery, setSearchQuery] = useState('')
   const [editingSRU, setEditingSRU] = useState<string | null>(null)
   const [sruValue, setSruValue] = useState('')
 
-  async function fetchAccounts() {
-    const res = await fetch('/api/bookkeeping/accounts')
-    const { data } = await res.json()
-    setAccounts(data || [])
-    setLoading(false)
-  }
-
-  useEffect(() => {
-    fetchAccounts()
-  }, [])
-
   async function updateSRUCode(accountId: string, newSruCode: string) {
     const supabase = createClient()
     const trimmed = newSruCode.trim() || null
@@ -47,9 +38,8 @@ export default function ChartOfAccounts() {
       .update({ sru_code: trimmed })
       .eq('id', accountId)
 
-    setAccounts((prev) =>
-      prev.map((a) => (a.id === accountId ? { ...a, sru_code: trimmed } : a))
-    )
+    // Refresh the shared chart so this list and every picker show the code.
+    await invalidateReferenceData('ref:accounts')
     setEditingSRU(null)
   }