Add scrape/ingestion engine + validation, and 24h shift hour-range visualization

Scrape engine (Services/Scraping/): pluggable IListingSource (working sample + Telegram/Divar credential-ready stubs) → IngestionService (content-hash dedupe → parse → validate → review queue) → ListingValidator (completeness score + spam screen) → IngestionWorker (config-gated hosted service). RawListing gains ContentHash/Confidence/ValidationNotes; RawListingStatus.Flagged. Admin /Admin gets run-now, source list, confidence + flagged queue.

Hour-range viz: _HourBar 24h timeline bar (colored by type, overnight wrap) on shift cards, recommendation cards, and detail.

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

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

@@ -0,0 +1,20 @@
+@model JobsMedical.Web.Models.RawListing
+@{
+    var c = Model.Confidence;
+    var confClass = c >= 70 ? "badge-verified" : c >= 50 ? "badge-day" : "badge-type";
+}
+<div class="card card-pad" style="margin-bottom:12px;">
+    <div class="row" style="display:flex; justify-content:space-between; align-items:center; gap:8px; flex-wrap:wrap;">
+        <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))</span>
+        </span>
+    </div>
+    <p style="margin:10px 0; white-space:pre-wrap;">@Model.RawText</p>
+    @if (!string.IsNullOrEmpty(Model.ValidationNotes))
+    {
+        <p class="muted" style="font-size:12.5px; margin:0 0 10px;">⚠ @Model.ValidationNotes</p>
+    }
+    <a class="btn btn-accent" asp-page="/Admin/Review" asp-route-id="@Model.Id">بررسی و انتشار ←</a>
+</div>