fix(reconciliation): await the pre-existing matched/storno match-log writes (#1606)

Final Swedish-review finding (approved by Emil): the six fire-and-forget
logMatchEvent calls that predate this branch in the four match routes are
now awaited, matching the rest of the PR and the DECISIONS claim that
every audit write is awaited. logMatchEvent never throws; on serverless
an unawaited promise can be frozen when the response returns, silently
dropping the behandlingshistorik row (BFNAR 2013:2 kap 8).

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

app/api/transactions/[id]/match-invoice/route.ts

@@ -365,7 +365,7 @@ export const POST = withRouteContext(
           txLog.warn('failed to clear journal_entry_id after storno', clearJeError)
         }
 
-        logMatchEvent(supabase, user.id, transactionId, 'storno_conflict_resolved', {
+        await logMatchEvent(supabase, user.id, transactionId, 'storno_conflict_resolved', {
           invoiceId: invoice_id,
           previousState: { journal_entry_id: transaction.journal_entry_id },
           newState: { journal_entry_id: null },
@@ -776,7 +776,7 @@ export const POST = withRouteContext(
       })
     }
 
-    logMatchEvent(supabase, user.id, transactionId, 'matched', {
+    await logMatchEvent(supabase, user.id, transactionId, 'matched', {
       invoiceId: invoice_id,
       matchConfidence: 1.0,
       matchMethod: 'manual_confirm',

app/api/transactions/[id]/match-supplier-invoice/route.ts

@@ -501,7 +501,7 @@ export const POST = withRouteContext(
     // it is already anchored, e.g. on the registration verifikat.
     await anchorSupplierInvoiceDocument(supabase, companyId, supplier_invoice_id)
 
-    logMatchEvent(supabase, user.id, transactionId, 'matched', {
+    await logMatchEvent(supabase, user.id, transactionId, 'matched', {
       supplierInvoiceId: supplier_invoice_id,
       matchConfidence: 1.0,
       matchMethod: 'manual_confirm',

app/api/v1/companies/[companyId]/transactions/[id]/match-invoice/route.ts

@@ -437,7 +437,7 @@ export const POST = withApiV1<{ params: Promise<{ companyId: string; id: string
         if (clearErr) {
           txLog.warn('failed to clear journal_entry_id after storno', clearErr)
         }
-        logMatchEvent(ctx.supabase, ctx.userId, txId, 'storno_conflict_resolved', {
+        await logMatchEvent(ctx.supabase, ctx.userId, txId, 'storno_conflict_resolved', {
           invoiceId: invoice_id,
           previousState: { journal_entry_id: transaction.journal_entry_id },
           newState: { journal_entry_id: null },
@@ -808,7 +808,7 @@ export const POST = withApiV1<{ params: Promise<{ companyId: string; id: string
       })
     }
 
-    logMatchEvent(ctx.supabase, ctx.userId, txId, 'matched', {
+    await logMatchEvent(ctx.supabase, ctx.userId, txId, 'matched', {
       invoiceId: invoice_id,
       matchConfidence: 1.0,
       matchMethod: 'manual_confirm',

app/api/v1/companies/[companyId]/transactions/[id]/match-supplier-invoice/route.ts

@@ -581,7 +581,7 @@ export const POST = withApiV1<{ params: Promise<{ companyId: string; id: string
     // invoice. No-op when it is already anchored. Never throws.
     await anchorSupplierInvoiceDocument(ctx.supabase, ctx.companyId!, supplier_invoice_id)
 
-    logMatchEvent(ctx.supabase, ctx.userId, txId, 'matched', {
+    await logMatchEvent(ctx.supabase, ctx.userId, txId, 'matched', {
       supplierInvoiceId: supplier_invoice_id,
       matchConfidence: 1.0,
       matchMethod: 'manual_confirm',