first commit

Models/NavItem.cs

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+using System.ComponentModel.DataAnnotations;
+
+namespace Fitness_core_BE.Models
+{
+    // Global reference table (not per-tenant) driving the gym-owner dashboard's sidebar.
+    // Key doubles as the permission key used by GymRolePermission and RequiresPermissionAttribute —
+    // this is a coarse, one-permission-per-nav-section system, so a separate PermissionKey
+    // column would just be a redundant mirror of Key.
+    public class NavItem
+    {
+        [Key]
+        public string Key { get; set; } = string.Empty;
+
+        public string Label { get; set; } = string.Empty;
+        public string? ShortLabel { get; set; }
+        public string Href { get; set; } = string.Empty;
+        public string Icon { get; set; } = string.Empty;
+        public int SortOrder { get; set; }
+
+        // Rows like "settings" are never grantable to staff, regardless of role — the owner
+        // always sees them, staff never does.
+        public bool IsOwnerOnly { get; set; } = false;
+        public bool IsActive { get; set; } = true;
+    }
+}