chore：清理废弃的网络测试文件

- 删除旧的NetworkTest.gd测试文件
- 移除对应的UID文件
- 统一使用新的ApiTestScript替代

scripts/network/NetworkTest.gd

@@ -1,31 +0,0 @@
-extends Node
-
-# 简单的API测试脚本
-const API_BASE_URL = "https://whaletownend.xinghangee.icu"
-
-func _ready():
-	print("API测试脚本已加载")
-	print("服务器地址: ", API_BASE_URL)
-	
-	# 测试服务器连接
-	test_server_status()
-
-func test_server_status():
-	var http_request = HTTPRequest.new()
-	add_child(http_request)
-	http_request.request_completed.connect(_on_status_request_completed)
-	
-	print("正在测试服务器连接...")
-	var error = http_request.request(API_BASE_URL)
-	if error != OK:
-		print("请求失败: ", error)
-
-func _on_status_request_completed(result: int, response_code: int, headers: PackedStringArray, body: PackedByteArray):
-	var response_text = body.get_string_from_utf8()
-	print("服务器状态响应: ", response_code)
-	print("响应内容: ", response_text)
-	
-	if response_code == 200:
-		print("✅ 服务器连接正常")
-	else:
-		print("❌ 服务器连接失败")

scripts/network/NetworkTest.gd.uid

@@ -1 +0,0 @@
-uid://bsfrdqpsvwgtb