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/Pages/Jobs/Index.cshtml.cs

@@ -16,6 +16,7 @@ public class IndexModel : PageModel
     [BindProperty(SupportsGet = true)] public int? DistrictId { get; set; }
     [BindProperty(SupportsGet = true)] public int? RoleId { get; set; }
     [BindProperty(SupportsGet = true)] public EmploymentType? EmploymentType { get; set; }
+    [BindProperty(SupportsGet = true)] public Gender? GenderFilter { get; set; }
     [BindProperty(SupportsGet = true)] public double? Lat { get; set; }
     [BindProperty(SupportsGet = true)] public double? Lng { get; set; }
 
@@ -44,6 +45,8 @@ public class IndexModel : PageModel
         if (DistrictId is not null) q = q.Where(j => j.Facility.DistrictId == DistrictId);
         if (RoleId is not null) q = q.Where(j => j.RoleId == RoleId);
         if (EmploymentType is not null) q = q.Where(j => j.EmploymentType == EmploymentType);
+        if (GenderFilter is Gender g && g != Gender.Any)
+            q = q.Where(j => j.GenderRequirement == Gender.Any || j.GenderRequirement == g);
 
         var results = await q.ToListAsync();