feat: add review confirmation dialogs and BAS account number tooltips

Add modal review/confirmation dialogs before submitting invoices, supplier
invoices, and journal entries. Since journal entries are legally immutable
once posted, users now see a full summary with an amber warning before
confirming. Add AccountNumber component with rich tooltips showing account
name, class, type, and plain-language Swedish explanation for ~45 key BAS
accounts across all report views.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/api/reports/ar-ledger/route.ts

@@ -0,0 +1,32 @@
+import { createClient } from '@/lib/supabase/server'
+import { NextResponse } from 'next/server'
+import { generateARLedger } from '@/lib/reports/ar-ledger'
+import { generateARReconciliation } from '@/lib/reports/ar-reconciliation'
+
+export async function GET(request: Request) {
+  const supabase = await createClient()
+
+  const { data: { user } } = await supabase.auth.getUser()
+
+  if (!user) {
+    return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })
+  }
+
+  const { searchParams } = new URL(request.url)
+  const asOfDate = searchParams.get('as_of_date') || undefined
+  const periodId = searchParams.get('period_id') || undefined
+
+  const ledger = await generateARLedger(user.id, asOfDate)
+
+  let reconciliation = null
+  if (periodId) {
+    reconciliation = await generateARReconciliation(user.id, periodId)
+  }
+
+  return NextResponse.json({
+    data: {
+      ledger,
+      reconciliation,
+    },
+  })
+}

app/api/reports/general-ledger/route.ts

@@ -0,0 +1,26 @@
+import { createClient } from '@/lib/supabase/server'
+import { NextResponse } from 'next/server'
+import { generateGeneralLedger } from '@/lib/reports/general-ledger'
+
+export async function GET(request: Request) {
+  const supabase = await createClient()
+
+  const { data: { user } } = await supabase.auth.getUser()
+
+  if (!user) {
+    return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })
+  }
+
+  const { searchParams } = new URL(request.url)
+  const periodId = searchParams.get('period_id')
+  const accountFrom = searchParams.get('account_from') || undefined
+  const accountTo = searchParams.get('account_to') || undefined
+
+  if (!periodId) {
+    return NextResponse.json({ error: 'period_id is required' }, { status: 400 })
+  }
+
+  const data = await generateGeneralLedger(user.id, periodId, accountFrom, accountTo)
+
+  return NextResponse.json({ data })
+}

app/api/reports/journal-register/route.ts

@@ -0,0 +1,24 @@
+import { createClient } from '@/lib/supabase/server'
+import { NextResponse } from 'next/server'
+import { generateJournalRegister } from '@/lib/reports/journal-register'
+
+export async function GET(request: Request) {
+  const supabase = await createClient()
+
+  const { data: { user } } = await supabase.auth.getUser()
+
+  if (!user) {
+    return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })
+  }
+
+  const { searchParams } = new URL(request.url)
+  const periodId = searchParams.get('period_id')
+
+  if (!periodId) {
+    return NextResponse.json({ error: 'period_id is required' }, { status: 400 })
+  }
+
+  const data = await generateJournalRegister(user.id, periodId)
+
+  return NextResponse.json({ data })
+}