Display timestamps in Tehran time, not UTC

The server clock is correct (UTC); the app rendered UTC wall-clock directly, so
the run log showed ~3.5h behind Tehran. Add JalaliDate.ToTehran (flat UTC+3:30 —
Iran dropped DST in 2022) + DateTimeLabel, and convert the UTC-stored timestamp
displays (ingestion run log, RawListing FetchedAt, report CreatedAt). Shift
start/end inputs are TimeOnly, left as-is.

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

src/JobsMedical.Web/Pages/Shared/_RawListingRow.cshtml

@@ -8,7 +8,7 @@
         <strong>@Model.SourceChannel</strong>
         <span style="display:flex; gap:8px; align-items:center;">
             <span class="badge @confClass">اطمینان @JalaliDate.ToPersianDigits(c.ToString())٪</span>
-            <span class="muted" style="font-size:12px;">@JalaliDate.ToLongDate(DateOnly.FromDateTime(Model.FetchedAt)) — @JalaliDate.ToPersianDigits(Model.FetchedAt.ToString("HH:mm"))</span>
+            <span class="muted" style="font-size:12px;">@JalaliDate.DateTimeLabel(Model.FetchedAt)</span>
         </span>
     </div>
     <p style="margin:10px 0; white-space:pre-wrap;">@Model.RawText</p>