feat(pos): delivery-note slip shows company name and optional prices

The Include-prices toggle drives both the on-screen slip and the
Bluetooth thermal print, so what prints matches what the operator saw.

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

public/pos/receipt.html

@@ -112,6 +112,10 @@ input,select{font:inherit;color:inherit}
 .dn-line:last-child{border-bottom:0}
 .dn-line .nm{flex:1;min-width:0;font-weight:500;line-height:1.35}
 .dn-line .qt{font-size:12px;color:var(--ink-soft);letter-spacing:.02em;white-space:nowrap;padding-top:2px;font-variant-numeric:tabular-nums}
+.dn-line .pr{font-size:13px;font-weight:600;color:var(--fg);white-space:nowrap;font-variant-numeric:tabular-nums;min-width:76px;text-align:right}
+.dn-toggle{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-soft);margin:10px 0;padding:0 2px}
+.dn-toggle input{width:16px;height:16px}
+@media print{.dn-toggle{display:none}}
 .dn-sign{display:grid;grid-template-columns:1fr 1fr;gap:24px;padding-top:18px;margin-top:6px;border-top:1px dashed var(--muted)}
 .dn-sign > div{padding-top:8px;border-top:1.5px solid var(--fg);font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft);text-align:center}
 
@@ -315,7 +319,6 @@ input,select{font:inherit;color:inherit}
 <script>
 (function(){
 'use strict';
-const cfg = window.PB_CONFIG;
 const fmt = n => 'R ' + (Number(n)||0).toLocaleString('en-ZA',{minimumFractionDigits:2,maximumFractionDigits:2});
 const esc = s => String(s||'').replace(/[&<>"']/g, c=>({'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;',"'":'&#39;'})[c]);
 const escAttr = s => String(s).replace(/"/g,'&quot;');
@@ -338,6 +341,8 @@ if(!sale){
   if(sale.synced) document.getElementById('syncedFlag').style.display = 'inline-flex';
   else document.getElementById('successSub').textContent = 'Saved locally · will sync when online';
   if(sale.payment==='account'){
+    // Stashed so the "Include prices" checkbox can re-render in place.
+    window.__lastSale = sale;
     document.getElementById('deliveryWrap').style.display='block';
     document.getElementById('printDnBtn').style.display='flex';
     renderDeliveryNote(sale);
@@ -412,32 +417,43 @@ function renderReceipt(s){
 }
 
 function renderDeliveryNote(s){
-  const lh = s.letterhead || {};
   const date = new Date(s.createdAt);
   const dateStr = date.toLocaleDateString('en-ZA',{day:'2-digit',month:'short',year:'numeric'});
-  const lines = s.items.map(it=>`<div class="dn-line">
-    <div class="nm">${esc(it.description||it.sku)}</div>
-    <div class="qt">${it.qty} ${esc(it.unit||'ea')}</div>
-  </div>`).join('');
+  // Some customers must not see prices on the slip the driver carries;
+  // others want them. Default to showing, toggle re-renders in place.
+  const toggle = document.getElementById('dnShowPrices');
+  const showPrices = toggle ? !!toggle.checked : true;
+  const lines = s.items.map(it=>{
+    const price = showPrices ? `<div class="pr">${fmt((it.selling_price||0)*it.qty)}</div>` : '';
+    return `<div class="dn-line">
+      <div class="nm">${esc(it.description||it.sku)}</div>
+      <div class="qt">${it.qty} ${esc(it.unit||'ea')}</div>
+      ${price}
+    </div>`;
+  }).join('');
+  const companyLine = s.customer && s.customer.company
+    ? `<div class="v">${esc(s.customer.company)}</div>` : '';
   const html = `
     <div class="dn-head">
       <div class="ic"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor"><path d="M3 7h13l3 4h2v6h-2M3 17V7M3 17a2 2 0 1 0 4 0M17 17a2 2 0 1 0 4 0"/></svg></div>
       <div class="nm">
         <div class="t">Delivery note</div>
-        <div class="s">${esc(s.customer?.name || '—')}</div>
+        <div class="s">${esc((s.customer && s.customer.company) || (s.customer && s.customer.name) || '—')}</div>
       </div>
     </div>
     <div class="dn-meta">
-      <div><div class="k">Customer</div><div class="v">${esc(s.customer?.name||'—')}</div></div>
+      <div><div class="k">Customer</div><div class="v">${esc((s.customer && s.customer.name)||'—')}</div>${companyLine}</div>
       <div><div class="k">Date</div><div class="v">${dateStr}</div></div>
       <div><div class="k">Slip</div><div class="v">${(s.localId||'').slice(-8).toUpperCase()}</div></div>
-      <div><div class="k">Sale total</div><div class="v">${fmt(s.total)}</div></div>
+      ${showPrices ? `<div><div class="k">Sale total</div><div class="v">${fmt(s.total)}</div></div>` : ''}
     </div>
+    <label class="dn-toggle"><input type="checkbox" id="dnShowPrices" ${showPrices?'checked':''} onchange="renderDeliveryNote(window.__lastSale)"> Include prices</label>
     <div class="dn-items">${lines}</div>
     <div class="dn-sign"><div>Received by</div><div>Driver</div></div>
   `;
   document.getElementById('deliveryCard').innerHTML = html;
 }
+window.renderDeliveryNote = renderDeliveryNote;
 
 // ---------------- Bluetooth thermal printing ----------------
 let btDevice = null;
@@ -554,24 +570,32 @@ async function printDelivery(){
   }
   const E = (n) => String.fromCharCode(n);
   const ESC = E(0x1B);
+  // Mirror the on-screen "Include prices" toggle so the printed slip
+  // matches what the operator just checked.
+  const dnToggle = document.getElementById('dnShowPrices');
+  const showPrices = dnToggle ? !!dnToggle.checked : true;
   const lines = [];
   lines.push(ESC+'@');
   lines.push(ESC+'a'+E(1));
   lines.push(ESC+'!'+E(0x10));
   lines.push('WFSALES POS\n');
   lines.push(ESC+'!'+E(0x00));
-  if(sale.letterhead?.name) lines.push(sale.letterhead.name+'\n');
   lines.push('Delivery Note\n');
   lines.push(ESC+'a'+E(0));
+  if(sale.customer?.company) lines.push('Company: ' + sale.customer.company + '\n');
   lines.push('Customer: ' + (sale.customer?.name||'—') + '\n');
   const d = new Date(sale.createdAt);
   lines.push('Date: ' + d.toLocaleDateString('en-ZA')+'\n');
   lines.push('--------------------------------\n');
   for(const it of sale.items){
     lines.push((it.description||it.sku)+'\n');
-    lines.push(`  ${it.qty} ${it.unit||'ea'}\n`);
+    const qtyLine = `  ${it.qty} ${it.unit||'ea'}`;
+    lines.push(showPrices
+      ? `${qtyLine}   ${fmt((it.selling_price||0)*it.qty)}\n`
+      : `${qtyLine}\n`);
   }
   lines.push('--------------------------------\n');
+  if(showPrices) lines.push('TOTAL: ' + fmt(sale.total) + '\n');
   lines.push('Received by: __________  Driver: __________\n');
   lines.push('\n\n');
   lines.push(String.fromCharCode(0x1D)+'V'+String.fromCharCode(0x41)+String.fromCharCode(0x10));