Updated MoonCore dependencies. Switched to asp.net core native authentication scheme abstractions. Updated claim usage in frontend

Moonlight.ApiServer/Services/ApiKeyAuthService.cs

@@ -0,0 +1,32 @@
+using System.Security.Claims;
+using Microsoft.EntityFrameworkCore;
+using MoonCore.Extended.Abstractions;
+using Moonlight.ApiServer.Database.Entities;
+
+namespace Moonlight.ApiServer.Services;
+
+public class ApiKeyAuthService
+{
+    private readonly DatabaseRepository<ApiKey> ApiKeyRepository;
+
+    public ApiKeyAuthService(DatabaseRepository<ApiKey> apiKeyRepository)
+    {
+        ApiKeyRepository = apiKeyRepository;
+    }
+
+    public async Task<bool> Validate(ClaimsPrincipal? principal)
+    {
+        // Ignore malformed claims principal
+        if (principal is not { Identity.IsAuthenticated: true })
+            return false;
+
+        var apiKeyIdStr = principal.FindFirstValue("ApiKeyId");
+
+        if (!int.TryParse(apiKeyIdStr, out var apiKeyId))
+            return false;
+
+        return await ApiKeyRepository
+            .Get()
+            .AnyAsync(x => x.Id == apiKeyId);
+    }
+}