Establish UE 5.8 known-good baseline with Batch 1 archaeology docs.

Initialize Git with LFS for binary assets and add standard Unreal Engine .gitignore/.gitattributes.

Co-authored-by: Cursor <cursoragent@cursor.com>

Source/REALMSINRUIN/Public/Player/RIRPlayerController.h

@@ -0,0 +1,46 @@
+// REALMS  IN  RUIN. Copyright (c) 2025 Trevor Edwards. All rights reserved.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "GameFramework/PlayerController.h"
+#include "RIRPlayerController.generated.h"
+
+class UInputAction;
+class UInputMappingContext;
+class ITargetInterface;
+struct FInputActionValue;
+
+UCLASS()
+class REALMSINRUIN_API ARIRPlayerController : public APlayerController
+{
+	GENERATED_BODY()
+
+public:
+	ARIRPlayerController();
+	virtual void PlayerTick(float DeltaTime) override;
+	virtual void BindCallbacksToDependencies();
+
+protected:
+	virtual void BeginPlay() override;
+	
+	// Input bindings
+	virtual void SetupInputComponent() override;
+
+	// Handles movement input
+	void HandleMovementInput(const FInputActionValue& InputActionValue);
+
+private:
+	// Input Mapping Context (to be assigned via editor)
+	UPROPERTY(EditAnywhere, Category = "Input")
+	TObjectPtr<UInputMappingContext> PlayerMappingContext;
+
+	// Input Action asset for movement (to be assigned via editor)
+	UPROPERTY(EditAnywhere, Category = "Input")
+	TObjectPtr<UInputAction> MovementInput;
+
+	// Called every frame or on-demand to perform a trace under the mouse cursor
+	void CursorTrace();
+	TScriptInterface<ITargetInterface> LastActor;
+	TScriptInterface<ITargetInterface> ThisActor;
+};