Add gender requirement (آقا/خانم/فرقی نمی‌کند) + employee (کارجو) panel

- Gender enum + GenderRequirement on Shift/JobOpening + Gender on UserPreferences (migration)
- Employer PostShift/PostJob + admin Review have a gender select; parser detects آقا/خانم/مرد/زن
- Gender badge on cards + detail; gender filter on Shifts/Jobs; gender in preferences
- Recommendations exclude listings whose gender requirement conflicts with the person's gender
- Two panels: new /Me employee (کارجو) panel (recommendations + saved + applied + prefs) alongside /Employer; nav routes by role; /Account/Profile → /Me

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

src/JobsMedical.Web/Services/RecommendationService.cs

@@ -79,6 +79,11 @@ public class RecommendationService
         var results = new List<Recommendation>();
         foreach (var s in candidates)
         {
+            // Skip listings whose gender requirement conflicts with the person's gender.
+            if (prefs?.Gender is Gender pg && pg != Gender.Any
+                && s.GenderRequirement != Gender.Any && s.GenderRequirement != pg)
+                continue;
+
             double score = 0;
             var reasons = new List<string>();