Got most of admin panel working. Data issues fixed

OpenArchival.DataAccess/IdentityDataSeeder.cs

@@ -0,0 +1,45 @@
+// Create a new file, e.g., /Data/IdentityDataSeeder.cs
+
+using Microsoft.AspNetCore.Identity;
+using OpenArchival.DataAccess; // Your project's namespace for ApplicationUser
+
+public static class IdentityDataSeeder
+{
+    public static async Task SeedRolesAndAdminUserAsync(IServiceProvider serviceProvider)
+    {
+        // Get the required services
+        var roleManager = serviceProvider.GetRequiredService<RoleManager<IdentityRole>>();
+        var userManager = serviceProvider.GetRequiredService<UserManager<ApplicationUser>>();
+
+        // --- Create Roles If They Don't Exist ---
+        string[] roleNames = { "Admin", "User" };
+        foreach (var roleName in roleNames)
+        {
+            if (!await roleManager.RoleExistsAsync(roleName))
+            {
+                await roleManager.CreateAsync(new IdentityRole(roleName));
+            }
+        }
+
+        // --- Create a Default Admin User If It Doesn't Exist ---
+        var adminEmail = "admin@admin.com";
+        if (await userManager.FindByEmailAsync(adminEmail) == null)
+        {
+            var adminUser = new ApplicationUser
+            {
+                UserName = adminEmail,
+                Email = adminEmail,
+                EmailConfirmed = true // Bypass email confirmation for the seeder
+            };
+
+            // Be sure to use a strong password from configuration in a real app
+            var result = await userManager.CreateAsync(adminUser, "StrongAdminPassword123!");
+
+            if (result.Succeeded)
+            {
+                // Assign the 'Admin' role to the new user
+                await userManager.AddToRoleAsync(adminUser, "Admin");
+            }
+        }
+    }
+}