Normalize ریال→تومان pricing; stop exposing crawl source (medjobs/telegram)

- Parser now reads the currency: ریال amounts (incl. «میلیون ریال» and
  numbers with no تومان unit but ≥200M) are converted to تومان (÷10), so
  «۴۰۰٬۰۰۰٬۰۰۰ ریال» shows as ۴۰٬۰۰۰٬۰۰۰ تومان instead of 400M.
- Aggregated facility fallback name no longer embeds the source
  («مرکز درمانی (از مدجابز)» → «مرکز درمانی (نامشخص)»).
- Talent details only ever names Divar as a fallback source (when the
  number couldn't be extracted); medjobs/telegram are never shown publicly.

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

src/JobsMedical.Web/Services/Scraping/IngestionService.cs

@@ -198,9 +198,10 @@ public class IngestionService
             return;
         }
 
+        // Never surface the crawl source (e.g. «مدجابز») in a public facility name.
         var facilityName = !string.IsNullOrWhiteSpace(d?.FacilityName) ? d!.FacilityName!.Trim()
             : !string.IsNullOrWhiteSpace(parsed.FacilityName) ? parsed.FacilityName!.Trim()
-            : $"مرکز درمانی (از {raw.SourceChannel})";
+            : "مرکز درمانی (نامشخص)";
         // Reuse an existing facility (exact or Persian-aware fuzzy match) before creating a new one.
         var facility = FacilityMatcher.FindBest(facilities, facilityName, city.Id);
         if (facility is null)