resource stuff

Nerfed.Runtime/Resource/ResourceComponents.cs

@@ -0,0 +1,19 @@
+namespace Nerfed.Runtime;
+
+/// <summary>
+/// Attach this component to an entity mapped to raw source-path strings.
+/// Useful for testing, hardcoded assets, or before full editor-guided GUID injection.
+/// </summary>
+public readonly record struct AssetReferenceComponent(Guid AssetId);
+
+/// <summary>
+/// A strongly-typed version of an asset reference, preventing the user from accidentally
+/// assigning a Shader GUID to a Texture component in the Editor.
+/// </summary>
+public readonly record struct TypedAssetReference<TRes>(Guid AssetId) where TRes : Resource;
+
+/// <summary>
+/// Added to an entity by the AssetStreamingSystem when the physical resource is fully 
+/// loaded in memory and ready to be used by the renderer or physics engine.
+/// </summary>
+public struct AssetLoadedTag { }