Stop job/shift role fan-out: one aggregated ad = one listing

A single ad naming several role-ish words («استخدام بهیار جهت دستیار پزشک و تزریقات») was
fanning out into one listing PER extracted role — 5 near-duplicate cards with different and even
typo roles (پزشک عمومی، پرستار، دستیار پزشک، بهیار، «بیهیار»). Publish now creates ONE listing
with the primary (guard-corrected) role; other role words stay findable via the full description.
DedupeJobsAsync no longer keys on role, so existing fan-out copies collapse — preferring to keep a
non-«پزشک عمومی» copy, then the newest. Run the «حذفِ تکراری» + «اصلاح نقش» buttons to clean the
already-published fan-out.

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

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

@@ -414,24 +414,31 @@ public class IngestionService
     /// </summary>
     public async Task<int> DedupeJobsAsync(CancellationToken ct = default)
     {
+        var gpId = await _db.Roles.Where(r => r.Name == "پزشک عمومی").Select(r => (int?)r.Id).FirstOrDefaultAsync(ct);
         var rows = await _db.JobOpenings
             .Where(j => j.Status == ShiftStatus.Open && j.Source == ShiftSource.Aggregated)
             .Select(j => new { j.Id, j.RoleId, j.FacilityId, j.Description, j.CreatedAt })
             .ToListAsync(ct);
 
-        string? Sig(int roleId, int facId, string? desc)
+        // Signature = facility + normalized description core (digits/«… پیش» stripped). RoleId is
+        // deliberately NOT in the key, so the old role fan-out — the SAME ad published once per
+        // extracted/typo role (پزشک عمومی، پرستار، بهیار، «بیهیار»…) — collapses into one.
+        string? Sig(int facId, string? desc)
         {
             var core = NormalizeFa(Regex.Replace(desc ?? "",
                 @"[0-9۰-۹]+|روز پیش|ساعت پیش|هفته پیش|دقیقه پیش|دیروز|پریروز", " ")).Trim();
             if (core.Length < 15) return null;                      // too little to call it a dup safely
-            return $"j:{roleId}:{facId}:{(core.Length > 120 ? core[..120] : core)}";
+            return $"j:{facId}:{(core.Length > 120 ? core[..120] : core)}";
         }
 
+        // Keep one per group — prefer a non-«پزشک عمومی» role (the fan-out's GP copy is the usual
+        // mislabel), then the newest.
         var toArchive = rows
-            .Select(r => new { r.Id, r.CreatedAt, Key = Sig(r.RoleId, r.FacilityId, r.Description) })
+            .Select(r => new { r.Id, r.RoleId, r.CreatedAt, Key = Sig(r.FacilityId, r.Description) })
             .Where(x => x.Key is not null)
             .GroupBy(x => x.Key)
-            .SelectMany(g => g.OrderByDescending(x => x.CreatedAt).Skip(1).Select(x => x.Id))
+            .SelectMany(g => g.OrderBy(x => x.RoleId == gpId ? 1 : 0).ThenByDescending(x => x.CreatedAt)
+                              .Skip(1).Select(x => x.Id))
             .ToList();
 
         if (toArchive.Count == 0) return 0;
@@ -729,41 +736,42 @@ public class IngestionService
             facility.Lat = raw.Lat; facility.Lng = raw.Lng;
         }
 
+        // ONE ad = ONE listing. Do NOT fan out across roles. A single ad naming a few role-ish words
+        // («استخدام بهیار جهت دستیار پزشک و تزریقات») was exploding into 5 near-duplicate listings —
+        // one per extracted/typo role (پزشک عمومی، پرستار، دستیار پزشک، بهیار، «بیهیار»). Publish only
+        // the primary (guard-corrected) role; the rest stay findable via the full description text.
+        var primaryRole = pubRoles[0];
         if (kindStr.Contains("job") || kindStr.Contains("استخدام"))
         {
-            foreach (var role in pubRoles)
             _db.JobOpenings.Add(new JobOpening
             {
-                    Facility = facility, Role = role,
+                Facility = facility, Role = primaryRole,
-                    Title = !string.IsNullOrWhiteSpace(d?.Title) && pubRoles.Count == 1 ? d!.Title!.Trim() : $"استخدام {role.Name}",
+                Title = $"استخدام {primaryRole.Name}",
                 EmploymentType = MapEmployment(d?.EmploymentType, parsed.EmploymentType),
-                    // Prefer the AI-extracted salary, falling back to the parser's — matching the talent
+                // Prefer the AI-extracted salary, falling back to the parser's (matching the talent path).
-                    // path. (Jobs previously used only parsed.PayAmount, silently dropping the AI figure,
-                    // so every aggregated opening showed «توافقی» even when the ad stated a number.)
                 SalaryMin = d?.PayAmount ?? parsed.PayAmount,
                 Description = raw.RawText, Status = ShiftStatus.Open, Source = ShiftSource.Aggregated,
                 SourceUrl = raw.SourceUrl,
                 Lat = appLat, Lng = appLng,   // source point (Divar) or geocoded neighborhood center
-                    Contacts = BuildContacts(d, parsed),   // the ad's OWN number(s) — fresh per listing
+                Contacts = BuildContacts(d, parsed),   // the ad's OWN number(s)
             });
         }
         else
         {
             var st = MapShiftType(d?.ShiftType, parsed.ShiftType);
             var (start, end) = DefaultTimes(st);
-            foreach (var role in pubRoles)
             _db.Shifts.Add(new Shift
             {
-                    Facility = facility, Role = role,
+                Facility = facility, Role = primaryRole,
                 Date = DateOnly.FromDateTime(DateTime.UtcNow).AddDays(1),
                 StartTime = start, EndTime = end, ShiftType = st,
-                    SpecialtyRequired = role.Name, Description = raw.RawText,
+                SpecialtyRequired = primaryRole.Name, Description = raw.RawText,
                 PayType = parsed.SharePercent is not null && parsed.PayAmount is null ? PayType.Percentage
                           : parsed.PayAmount is null ? PayType.Negotiable : PayType.PerShift,
                 PayAmount = parsed.PayAmount, SharePercent = parsed.SharePercent,
                 Status = ShiftStatus.Open, Source = ShiftSource.Aggregated, SourceUrl = raw.SourceUrl,
                 Lat = appLat, Lng = appLng,   // source point (Divar) or geocoded neighborhood center
-                    Contacts = BuildContacts(d, parsed),   // the ad's OWN number(s) — fresh per listing
+                Contacts = BuildContacts(d, parsed),   // the ad's OWN number(s)
             });
         }
         raw.Status = RawListingStatus.Normalized;