Hide facility/location when it's the «نامشخص» placeholder — omit, don't print it

When a listing's facility is the unknown placeholder, don't show «مرکز درمانی
(نامشخص)» anywhere — just leave the location out. Gated on HasRealEmployer:
- cards (shift/job/recommendation): the 🏥 facility line is omitted
- shift detail: H1 drops the «— نامشخص» suffix; title/description use city only;
  «شیفت‌های دیگر این مرکز» hidden; report label generic
- job detail: subtitle drops 🏥, keeps 📍 city; title/description city-only

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/JobsMedical.Web/Pages/Shifts/Details.cshtml

@@ -3,14 +3,17 @@
 @{
     var s = Model.Shift!;
     var f = s.Facility!;
+    var hasFac = JobsMedical.Web.Services.SeoJsonLd.HasRealEmployer(f);   // false for the «نامشخص» placeholder
     var shiftContacts = (s.Contacts ?? new List<JobsMedical.Web.Models.ContactMethod>()).ToList();
     // Map: prefer the listing's own approx coords (aggregated ads) then the facility's. Aggregated =
     // approximate → shown as an area circle with a disclaimer, never a precise pin.
     var mapLat = s.Lat ?? f.Lat;
     var mapLng = s.Lng ?? f.Lng;
     var mapApprox = s.Source == JobsMedical.Web.Models.ShiftSource.Aggregated;
-    ViewData["Title"] = $"شیفت {s.SpecialtyRequired} - {f.Name}";
-    ViewData["Description"] = $"شیفت {s.SpecialtyRequired} در {f.Name}، {f.City?.Name}، تاریخ {JalaliDate.ToLongDate(s.Date)} از ساعت {JalaliDate.Time(s.StartTime)}.";
+    ViewData["Title"] = hasFac ? $"شیفت {s.SpecialtyRequired} - {f.Name}" : $"شیفت {s.SpecialtyRequired} — {f.City?.Name}";
+    ViewData["Description"] = hasFac
+        ? $"شیفت {s.SpecialtyRequired} در {f.Name}، {f.City?.Name}، تاریخ {JalaliDate.ToLongDate(s.Date)} از ساعت {JalaliDate.Time(s.StartTime)}."
+        : $"شیفت {s.SpecialtyRequired} در {f.City?.Name}، تاریخ {JalaliDate.ToLongDate(s.Date)} از ساعت {JalaliDate.Time(s.StartTime)}.";
     // Past/filled shifts shouldn't stay in the index as dead pages.
     if (s.Status != JobsMedical.Web.Models.ShiftStatus.Open || s.Date < DateOnly.FromDateTime(DateTime.UtcNow))
         ViewData["NoIndex"] = true;
@@ -36,7 +39,7 @@
                 <span class="badge badge-verified">✓ مرکز تأیید شده</span>
             }
         </div>
-        <h1 style="margin-top:8px;">@s.SpecialtyRequired — @f.Name</h1>
+        <h1 style="margin-top:8px;">@s.SpecialtyRequired@(hasFac ? " — " + f.Name : "")</h1>
         <p class="muted">📍 @f.City?.Name @(string.IsNullOrEmpty(f.Address) ? "" : "، " + f.Address)</p>
     </div>
 </div>
@@ -102,7 +105,7 @@
                 </div>
             }
 
-            @if (Model.MoreAtFacility.Count > 0)
+            @if (hasFac && Model.MoreAtFacility.Count > 0)
             {
                 <h3 style="margin:26px 0 14px;">شیفت‌های دیگر این مرکز</h3>
                 <div class="grid grid-3">
@@ -160,7 +163,7 @@
                         </form>
                     </details>
                     <details style="margin-top:6px;">
-                        <summary class="muted" style="font-size:12px; cursor:pointer;">شکایت از این مرکز (@f.Name)</summary>
+                        <summary class="muted" style="font-size:12px; cursor:pointer;">شکایت از این @(hasFac ? "مرکز (" + f.Name + ")" : "آگهی")</summary>
                         <form method="post" action="/report" style="margin-top:8px;">
                             <input type="hidden" name="targetType" value="Facility" />
                             <input type="hidden" name="targetId" value="@f.Id" />