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/Migrations/AppDbContextModelSnapshot.cs

@@ -317,6 +317,9 @@ namespace JobsMedical.Web.Migrations
                     b.Property<int>("FacilityId")
                         .HasColumnType("integer");
 
+                    b.Property<int>("GenderRequirement")
+                        .HasColumnType("integer");
+
                     b.Property<string>("Requirements")
                         .HasMaxLength(1000)
                         .HasColumnType("character varying(1000)");
@@ -464,6 +467,9 @@ namespace JobsMedical.Web.Migrations
                     b.Property<int>("FacilityId")
                         .HasColumnType("integer");
 
+                    b.Property<int>("GenderRequirement")
+                        .HasColumnType("integer");
+
                     b.Property<long?>("PayAmount")
                         .HasColumnType("bigint");
 
@@ -553,6 +559,9 @@ namespace JobsMedical.Web.Migrations
                     b.Property<int?>("CityId")
                         .HasColumnType("integer");
 
+                    b.Property<int>("Gender")
+                        .HasColumnType("integer");
+
                     b.Property<long?>("MinPay")
                         .HasColumnType("bigint");