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

src/NadekoBot/_common/Interaction/INadekoInteractionService.cs

@@ -0,0 +1,8 @@
+namespace NadekoBot;
+
+public interface INadekoInteractionService
+{
+    public NadekoInteraction Create<T>(
+        ulong userId,
+        SimpleInteraction<T> inter);
+}