Restructured the project structure back to the way it was, there's no reasonable way to split the modules

src/NadekoBot/_common/DbService.cs

@@ -0,0 +1,18 @@
+#nullable disable
+using LinqToDB.Common;
+using LinqToDB.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
+
+
+namespace NadekoBot.Services;
+
+public abstract class DbService
+{
+    /// <summary>
+    /// Call this to apply all migrations
+    /// </summary>
+    public abstract Task SetupAsync();
+
+    public abstract DbContext CreateRawDbContext(string dbType, string connString);
+    public abstract DbContext GetDbContext();
+}