Lots of data and model setup

SVSim.Database/Repositories/Collectibles/CollectionRepository.cs

@@ -0,0 +1,19 @@
+using Microsoft.EntityFrameworkCore;
+using SVSim.Database.Models;
+
+namespace SVSim.Database.Repositories.Collectibles;
+
+public class CollectionRepository : ICollectionRepository
+{
+    private readonly SVSimDbContext _dbContext;
+
+    public CollectionRepository(SVSimDbContext dbContext)
+    {
+        _dbContext = dbContext;
+    }
+
+    public async Task<List<LeaderSkinEntry>> GetLeaderSkins()
+    {
+        return await _dbContext.Set<LeaderSkinEntry>().AsNoTracking().Include(skin => skin.Class).ToListAsync();
+    }
+}

SVSim.Database/Repositories/Collectibles/ICollectionRepository.cs

@@ -0,0 +1,8 @@
+using SVSim.Database.Models;
+
+namespace SVSim.Database.Repositories.Collectibles;
+
+public interface ICollectionRepository
+{
+    Task<List<LeaderSkinEntry>> GetLeaderSkins();
+}