Check 1 position fix; remove comma from next check number display

- Move check slot 0 up 0.25" to match physical stock alignment;
  slots 1 and 2 are unaffected
- Remove toLocaleString() from next check number header display
  so no comma appears in the thousands place

public/js/app.js

@@ -87,7 +87,7 @@ function renderHeader() {
   const a = state.account;
   if (!a) return;
   document.getElementById('company-name').textContent = a.company1 || 'ezcheck';
-  document.getElementById('current-check-no').textContent = (a.current_check_no + 1).toLocaleString();
+  document.getElementById('current-check-no').textContent = a.current_check_no + 1;
 }
 
 function renderTable() {

src/services/pdfService.js

@@ -138,7 +138,7 @@ function generateCheckPdf(account, checks, fields) {
 
       for (let slot = 0; slot < 3; slot++) {
       const check = checks[page * 3 + slot] || null;
-      const slotOriginY = slot * SLOT_HEIGHT_IN;
+      const slotOriginY = slot * SLOT_HEIGHT_IN + (slot === 0 ? -0.25 : 0);
 
       // Helper: convert inches (relative to slot) to PDF points (absolute page)
       const pt = (xIn, yIn) => ({