fix: update RPC calls to use company_id instead of user_id for invoice and arrival number generation (#154)

app/api/invoices/[id]/convert/route.ts

@@ -56,7 +56,7 @@ export async function POST(
 
   // Generate real invoice number
   const { data: invoiceNumber } = await supabase.rpc('generate_invoice_number', {
-    p_user_id: user.id,
+    p_company_id: companyId,
   })
 
   // Create the real invoice

app/api/invoices/route.ts

@@ -166,12 +166,12 @@ export async function POST(request: Request) {
   let invoiceNumber: string
   if (documentType === 'delivery_note') {
     const { data: dnNumber } = await supabase.rpc('generate_delivery_note_number', {
-      p_user_id: user.id,
+      p_company_id: companyId,
     })
     invoiceNumber = dnNumber
   } else {
     const { data: baseNumber } = await supabase.rpc('generate_invoice_number', {
-      p_user_id: user.id,
+      p_company_id: companyId,
     })
     invoiceNumber = documentType === 'proforma'
       ? `PF-${baseNumber}`