Add cinematic startup credits

Source/AgrarianGame/AgrarianDemoNoticeWidget.h

@@ -12,11 +12,13 @@ class AGRARIANGAME_API UAgrarianDemoNoticeWidget : public UUserWidget
 	GENERATED_BODY()
 
 public:
+	virtual void NativeConstruct() override;
+
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Agrarian|Demo")
 	FText Motto = FText::FromString(TEXT("What survives after you are gone?"));
 
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Agrarian|Demo")
-	FText VersionLabel = FText::FromString(TEXT("Investor Demo v0.1.E - Build 2026.05.17"));
+	FText VersionLabel = FText::FromString(TEXT("Investor Demo v0.1.H - Build 2026.05.17"));
 
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Agrarian|Demo")
 	FText DemoNotice = FText::FromString(TEXT("Beta prototype build - not for public distribution"));
@@ -35,6 +37,8 @@ protected:
 		bool bParentEnabled) const override;
 
 private:
+	float CreditsStartTimeSeconds = 0.0f;
+
 	void DrawCenteredText(
 		FSlateWindowElementList& OutDrawElements,
 		int32& LayerId,
@@ -43,4 +47,29 @@ private:
 		float Y,
 		const FSlateFontInfo& Font,
 		const FLinearColor& Color) const;
+
+	void DrawTextAt(
+		FSlateWindowElementList& OutDrawElements,
+		int32& LayerId,
+		const FGeometry& AllottedGeometry,
+		const FText& Text,
+		const FVector2D& Position,
+		float Width,
+		const FSlateFontInfo& Font,
+		const FLinearColor& Color) const;
+
+	void DrawCinematicCredits(
+		FSlateWindowElementList& OutDrawElements,
+		int32& LayerId,
+		const FGeometry& AllottedGeometry) const;
+
+	void DrawCreditIllustration(
+		FSlateWindowElementList& OutDrawElements,
+		int32& LayerId,
+		const FGeometry& AllottedGeometry,
+		const FVector2D& Position,
+		const FVector2D& Size,
+		int32 IllustrationIndex,
+		const FLinearColor& AccentColor,
+		float Alpha) const;
 };