Step 1: the Salty project, two modules, tests and the gym

Salty.uproject (UE 5.8) from the Third Person template with class redirects, the SaltyCore and Salty modules,
the three build targets, USaltyAssetManager calling InitGlobalData, Config/Tags with the 23 root namespaces,
Scripts/run-tests.sh, build.sh and Authoring/create_gym.py, L_Gym, Git LFS attributes and the placeholder test.
Template variants kept as reference (D-41). The four Fab packs stay out of the repository for now (~10 GB).
The editor serves the engine MCP plugin on 127.0.0.1:8000 through DefaultEditorPerProjectUserSettings.ini.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

Source/Salty/Variant_Platforming/PlatformingPlayerController.h

@@ -0,0 +1,65 @@
+// Copyright Epic Games, Inc. All Rights Reserved.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "GameFramework/PlayerController.h"
+#include "PlatformingPlayerController.generated.h"
+
+class UInputMappingContext;
+class APlatformingCharacter;
+
+/**
+ *  Simple Player Controller for a third person platforming game
+ *  Manages input mappings
+ *  Respawns the player character at the Player Start when it's destroyed
+ */
+UCLASS(abstract, Config="Game")
+class APlatformingPlayerController : public APlayerController
+{
+	GENERATED_BODY()
+	
+protected:
+
+	/** Input mapping context for this player */
+	UPROPERTY(EditAnywhere, Category="Input|Input Mappings")
+	TArray<UInputMappingContext*> DefaultMappingContexts;
+
+	/** Input Mapping Contexts */
+	UPROPERTY(EditAnywhere, Category="Input|Input Mappings")
+	TArray<UInputMappingContext*> MobileExcludedMappingContexts;
+
+	/** Mobile controls widget to spawn */
+	UPROPERTY(EditAnywhere, Category="Input|Touch Controls")
+	TSubclassOf<UUserWidget> MobileControlsWidgetClass;
+
+	/** Pointer to the mobile controls widget */
+	UPROPERTY()
+	TObjectPtr<UUserWidget> MobileControlsWidget;
+
+	/** If true, the player will use UMG touch controls even if not playing on mobile platforms */
+	UPROPERTY(EditAnywhere, Config, Category = "Input|Touch Controls")
+	bool bForceTouchControls = false;
+
+	/** Character class to respawn when the possessed pawn is destroyed */
+	UPROPERTY(EditAnywhere, Category="Respawn")
+	TSubclassOf<APlatformingCharacter> CharacterClass;
+
+protected:
+
+	/** Gameplay initialization */
+	virtual void BeginPlay() override;
+
+	/** Initialize input bindings */
+	virtual void SetupInputComponent() override;
+
+	/** Pawn initialization */
+	virtual void OnPossess(APawn* InPawn) override;
+
+	/** Called if the possessed pawn is destroyed */
+	UFUNCTION()
+	void OnPawnDestroyed(AActor* DestroyedActor);
+
+	/** Returns true if the player should use UMG touch controls */
+	bool ShouldUseTouchControls() const;
+};