Fix — HTML entities rendering as literal text in JS textContent

textContent treats — as a plain string; replaced with innerHTML
for static dash placeholders, and — JS escape where user input
is concatenated. Also removed a dead textContent line in timeclock-kiosk.js
that was immediately overwritten by innerHTML on the next line.

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

src/PowderCoating.Web/Views/CompanySettings/Index.cshtml

@@ -3382,7 +3382,7 @@
         document.getElementById('ovenCalcToggle').addEventListener('click', function (e) {
             e.preventDefault();
             const hidden = _calcPanel.classList.toggle('d-none');
-            if (!hidden) { _calcW.value = ''; _calcD.value = ''; _calcH.value = ''; _calcResult.textContent = '—'; _calcApply.disabled = true; _calcW.focus(); }
+            if (!hidden) { _calcW.value = ''; _calcD.value = ''; _calcH.value = ''; _calcResult.innerHTML = '—'; _calcApply.disabled = true; _calcW.focus(); }
         });
 
         function _updateCalc() {
@@ -3402,7 +3402,7 @@
                 _calcApply.disabled = false;
                 _calcApply.dataset.val = val;
             } else {
-                _calcResult.textContent = '—';
+                _calcResult.innerHTML = '—';
                 _calcApply.disabled = true;
             }
         }
@@ -3420,7 +3420,7 @@
         document.getElementById('ovenModal').addEventListener('hidden.bs.modal', function () {
             _calcPanel.classList.add('d-none');
             _calcW.value = ''; _calcD.value = ''; _calcH.value = '';
-            _calcResult.textContent = '—'; _calcApply.disabled = true;
+            _calcResult.innerHTML = '—'; _calcApply.disabled = true;
         });
         // ─────────────────────────────────────────────────────────────────────