Fix notification bell, SMS consent kiosk flow, and button alignment

Notification bell:
- Bell now polls /InAppNotifications/Recent every 60s as a SignalR fallback
- Bell dropdown refresh on open so count is always current when staff looks at it

SMS consent → kiosk flow:
- Staff clicks "Get SMS Consent" on Customer Details → AJAX POST to
  /Kiosk/PushSmsConsent stores customer in IMemoryCache (10 min TTL)
- Kiosk PollSession returns smsConsentPending + customerId so tablet navigates
  to /Kiosk/SmsConsent/{customerId} automatically
- Customer reads TCPA consent on tablet, taps I Agree or No Thanks
- On agree: NotifyBySms/SmsConsentedAt/SmsConsentMethod set; in-app notification
  fires; cache cleared; tablet returns to Welcome
- Removed Customers/SmsConsent (staff-browser version); moved view to Kiosk/

Button alignment:
- kiosk.css: added display:flex + align-items:center + justify-content:center to
  all kiosk body buttons so content is centred vertically in tall button outlines

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

src/PowderCoating.Web/Views/Customers/Details.cshtml

@@ -185,11 +185,13 @@
                                         <span class="badge bg-secondary bg-opacity-10 text-secondary border border-secondary border-opacity-25">
                                             <i class="bi bi-chat-slash me-1"></i>SMS off
                                         </span>
-                                        <a href="/Customers/SmsConsent/@Model.Id"
-                                           class="badge bg-primary bg-opacity-10 text-primary border border-primary border-opacity-25 text-decoration-none"
-                                           title="Present SMS consent form to customer">
+                                        <button type="button"
+                                                class="badge bg-primary bg-opacity-10 text-primary border border-primary border-opacity-25 border-0"
+                                                style="cursor:pointer;"
+                                                title="Send SMS consent form to the front-desk kiosk tablet"
+                                                onclick="pushSmsConsent(@Model.Id)">
                                             <i class="bi bi-chat-dots me-1"></i>Get SMS Consent
-                                        </a>
+                                        </button>
                                     }
                                 </div>
                             </div>
@@ -549,3 +551,8 @@
         </div>
     </div>
 }
+
+@section Scripts {
+    <script src="~/js/customer-details.js" asp-append-version="true"></script>
+}
+

src/PowderCoating.Web/Views/Kiosk/SmsConsent.cshtml

@@ -9,7 +9,7 @@
     <h2 class="fw-bold mb-1" style="font-size:1.6rem;">SMS Notifications</h2>
     <p class="text-muted mb-4">Please read the following and tap <strong>I Agree</strong> to opt in.</p>
 
-    <form method="post" action="/Customers/SmsConsent/@Model">
+    <form method="post" action="/Kiosk/SmsConsent/@Model">
         @Html.AntiForgeryToken()
         <input type="hidden" name="agreed" value="true" />
 
@@ -33,7 +33,9 @@
         </div>
 
         <div class="d-flex gap-3">
-            <a href="/Customers/Details/@Model" class="btn btn-outline-secondary"
+            <a href="/Kiosk/SmsConsent/@Model?agreed=false"
+               onclick="event.preventDefault(); document.getElementById('declineForm').submit();"
+               class="btn btn-outline-secondary"
                style="min-height:64px;border-radius:12px;font-size:1.1rem;flex:0 0 auto;padding:0 2rem;">
                 <i class="bi bi-x-lg me-1"></i> No Thanks
             </a>
@@ -42,4 +44,10 @@
             </button>
         </div>
     </form>
+
+    @* Separate form for decline so "No Thanks" can POST with agreed=false *@
+    <form id="declineForm" method="post" action="/Kiosk/SmsConsent/@Model" style="display:none;">
+        @Html.AntiForgeryToken()
+        <input type="hidden" name="agreed" value="false" />
+    </form>
 </div>

src/PowderCoating.Web/Views/Shared/_Layout.cshtml

@@ -2101,8 +2101,14 @@
                     });
                 });
 
-                // Load on page ready
-                document.addEventListener('DOMContentLoaded', load);
+                // Load on page ready and refresh when dropdown is opened
+                document.addEventListener('DOMContentLoaded', () => {
+                    load();
+                    btn?.addEventListener('show.bs.dropdown', load);
+                });
+
+                // Fallback poll every 60 s in case SignalR misses a push
+                setInterval(load, 60_000);
 
                 return { addItem, incrementBadge, markAllRead, openDetail, markRead };
             })();