fix：修复代码警告和UID冲突问题

- 更新 ProjectPaths.gd 中的路径引用，适配新的目录结构
- 修复 SceneManager.gd 中的场景路径问题
- 更新 project.godot 配置，修复 AutoLoad 路径
- 修复 MainScene 相关文件的 UID 冲突
- 解决代码中的路径引用警告

_Core/managers/SceneManager.gd

@@ -11,13 +11,13 @@ var is_changing_scene: bool = false
 
 # 场景路径映射
 var scene_paths: Dictionary = {
-	"main": "res://Scenes/Maps/main_scene.tscn",
-	"auth": "res://UI/Windows/LoginWindow.tscn",
-	"game": "res://Scenes/Maps/game_scene.tscn",
-	"battle": "res://Scenes/Maps/battle_scene.tscn",
-	"inventory": "res://UI/Windows/InventoryWindow.tscn",
-	"shop": "res://UI/Windows/ShopWindow.tscn",
-	"settings": "res://UI/Windows/SettingsWindow.tscn"
+	"main": "res://scenes/maps/main_scene.tscn",
+	"auth": "res://scenes/ui/LoginWindow.tscn",
+	"game": "res://scenes/maps/game_scene.tscn",
+	"battle": "res://scenes/maps/battle_scene.tscn",
+	"inventory": "res://scenes/ui/InventoryWindow.tscn",
+	"shop": "res://scenes/ui/ShopWindow.tscn",
+	"settings": "res://scenes/ui/SettingsWindow.tscn"
 }
 
 func _ready():