config: 初始化UE5项目文件与C++源码

- ChildHood.uproject + Config/ 引擎配置
- Source/ 含第三人称模板、战斗/平台/横版变体
- .vsconfig Visual Studio依赖配置

ChildHood.uproject

@@ -0,0 +1,35 @@
+{
+	"FileVersion": 3,
+	"EngineAssociation": "5.7",
+	"Category": "",
+	"Description": "",
+	"Modules": [
+		{
+			"Name": "ChildHood",
+			"Type": "Runtime",
+			"LoadingPhase": "Default",
+			"AdditionalDependencies": [
+				"Engine",
+				"AIModule",
+				"UMG"
+			]
+		}
+	],
+	"Plugins": [
+		{
+			"Name": "ModelingToolsEditorMode",
+			"Enabled": true,
+			"TargetAllowList": [
+				"Editor"
+			]
+		},
+		{
+			"Name": "StateTree",
+			"Enabled": true
+		},
+		{
+			"Name": "GameplayStateTree",
+			"Enabled": true
+		}
+	]
+}