chore: repo-wide bloat sweep, remove dead code and fold duplicate helpers (#2150)

* chore: repo-wide bloat sweep, remove dead code and fold duplicate helpers

Remove 33 dead files, ~270 unreferenced exports/types, 13 dead i18n
namespaces and 4 unused dependencies; fold byte-identical helper copies
into one canonical home each (lib/utils chunk/sleep/utcDateStamp,
lib/dates/iso, lib/invariants/uuid, lib/xml/escape, lib/reports/sru/format,
lib/pdf/number-text, lib/browser/panel-request, lib/api/v1/body +
v1ValidationError rolled out to ~55 v1 routes, booking-template schemas).

No behaviour change: v1 bodies and status codes, MCP tool schemas, DB
writes and money math are untouched. Naive ore rounding was deliberately
not swapped for roundOre; see DECISIONS.md 2026-09-02 for the full list
of things left alone on purpose.

tsc, lint, 19588 unit tests and check:guards green; antipattern baseline
ratcheted (naive-ore-round 622 -> 620, hand-rolled-invariant 115 -> 113).

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* test(transactions): import RawTransaction from @/types after the ingest re-export removal

CI's type ratchet (check:types, full tsconfig) caught the one test file
that still imported the type through lib/transactions/ingest.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

---------

Co-authored-by: Jakob Wennberg <311770904+jakobwennberg-oss@users.noreply.github.com>
Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>

components/extensions/general/AiCategorizationWorkspace.tsx

@@ -1,15 +0,0 @@
-'use client'
-
-import type { WorkspaceComponentProps } from '@/lib/extensions/workspace-registry'
-import EmptyExtensionState from '@/components/extensions/shared/EmptyExtensionState'
-import { Wand } from 'lucide-react'
-
-export default function AiCategorizationWorkspace({ userId }: WorkspaceComponentProps) {
-  return (
-    <EmptyExtensionState
-      title="Transaktionskategorisering"
-      description="Transaktioner kategoriseras automatiskt baserat på dina regler när nya synkas. Gå till Transaktioner för att se matchningar."
-      icon={<Wand className="h-12 w-12 text-muted-foreground/40 mb-4" />}
-    />
-  )
-}

components/extensions/general/InvoiceInboxWorkspace.tsx

@@ -63,7 +63,7 @@ import { useCapability, useCompanyOptional } from '@/contexts/CompanyContext'
 import { CAPABILITY } from '@/lib/entitlements/keys'
 import { useBranding } from '@/lib/branding/brand-context'
 import type { WorkspaceComponentProps } from '@/lib/extensions/workspace-registry'
-import type { InboxChannelContext, InvoiceExtractionResult, InboxItemSource } from '@/types'
+import type { AccountingMethod, InboxChannelContext, InvoiceExtractionResult, InboxItemSource } from '@/types'
 import { renderChannelParticipant } from '@/lib/documents/channel-context-notes'
 import { selectInboxFields } from '@/lib/documents/inbox-field-visibility'
 import {
@@ -92,8 +92,6 @@ import {
 import { shrinkImageForUpload } from '@/lib/documents/shrink-image'
 import { uploadViaSignedUrl } from '@/lib/documents/direct-upload'
 
-type AccountingMethod = 'accrual' | 'cash'
-
 /**
  * A failure whose message is already the sentence to show the user, resolved
  * where the response was still in hand.
@@ -334,8 +332,6 @@ const EXTRACTED_FIELD_ACCESSORS: ((d: InvoiceExtractionResult) => unknown)[] = [
   (d) => d.totals?.total,
 ]
 
-export const EXTRACTED_FIELD_COUNT = EXTRACTED_FIELD_ACCESSORS.length
-
 /** How many of them the extraction actually filled in. */
 function countExtractedFields(data: InvoiceExtractionResult | null): number {
   if (!data) return 0

components/extensions/general/MailConnectionsPanel.tsx

@@ -1,6 +1,6 @@
 'use client'
 
-import { useCallback, useEffect, useRef, useState } from 'react'
+import { useCallback, useEffect, useState } from 'react'
 import { useTranslations } from 'next-intl'
 import { Loader2 } from 'lucide-react'
 import { Button } from '@/components/ui/button'

components/extensions/general/ReceiptOcrWorkspace.tsx

@@ -1,15 +0,0 @@
-'use client'
-
-import type { WorkspaceComponentProps } from '@/lib/extensions/workspace-registry'
-import EmptyExtensionState from '@/components/extensions/shared/EmptyExtensionState'
-import { Camera } from 'lucide-react'
-
-export default function ReceiptOcrWorkspace({ userId }: WorkspaceComponentProps) {
-  return (
-    <EmptyExtensionState
-      title="Kvittoscanning"
-      description="Ladda upp och skanna kvitton direkt från tillägets arbetsyta. Gå till Kvitton i sidomenyn för att komma igång."
-      icon={<Camera className="h-12 w-12 text-muted-foreground/40 mb-4" />}
-    />
-  )
-}