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/Models/Enums.cs

@@ -76,6 +76,17 @@ public enum ListingKind
     Job = 1
 }
 
+/// <summary>
+/// Gender. On a listing it's the requirement (Any = فرقی نمی‌کند); on a person it's their gender
+/// (Any = unspecified).
+/// </summary>
+public enum Gender
+{
+    Any = 0,     // فرقی نمی‌کند / نامشخص
+    Male = 1,    // آقا
+    Female = 2   // خانم
+}
+
 /// <summary>How ingested listings get onto the site.</summary>
 public enum IngestionMode
 {

src/JobsMedical.Web/Models/JobOpening.cs

@@ -32,6 +32,8 @@ public class JobOpening
     [MaxLength(1000)]
     public string? Requirements { get; set; }        // شرایط احراز
 
+    public Gender GenderRequirement { get; set; } = Gender.Any;  // جنسیت مورد نیاز
+
     public ShiftStatus Status { get; set; } = ShiftStatus.Open;
     public ShiftSource Source { get; set; } = ShiftSource.Admin;
 

src/JobsMedical.Web/Models/Shift.cs

@@ -29,6 +29,8 @@ public class Shift
     public int? SharePercent { get; set; }           // سهم درآمد (٪)؛ مثلاً ۵۰. می‌تواند همراه مبلغ هم باشد
     public PayType PayType { get; set; } = PayType.PerShift;
 
+    public Gender GenderRequirement { get; set; } = Gender.Any;  // جنسیت مورد نیاز
+
     [MaxLength(1500)]
     public string? Description { get; set; }         // توضیحات
 

src/JobsMedical.Web/Models/UserPreferences.cs

@@ -19,6 +19,7 @@ public class UserPreferences
 
     public ShiftType? PreferredShiftType { get; set; } // نوع شیفت ترجیحی
     public long? MinPay { get; set; }                  // حداقل حقوق مورد انتظار (تومان)
+    public Gender Gender { get; set; } = Gender.Any;   // جنسیت کارجو (برای تطبیق با نیاز آگهی)
 
     public DateTime UpdatedAt { get; set; } = DateTime.UtcNow;