feat(Connect): 完成连线基本玩法，

Assets/Script/Gameplay/Connect/ConnectionLineManager.cs

@@ -0,0 +1,25 @@
+using UnityEngine;
+using System.Collections.Generic;
+using Core;
+
+namespace Script.Gameplay.Connect
+{
+    public class ConnectionLineManager : MonoSingleton<ConnectionLineManager>
+    {
+        [SerializeField] private GameObject linePrefab; 
+        public List<ConnectionLine> connectionLines = new List<ConnectionLine>();
+        
+        public ConnectionLine GenerateConnectionLine(IConnectable source, IConnectable target)
+        {
+            GameObject lineObject = Instantiate(linePrefab, this.transform);
+            ConnectionLine connectionLine = lineObject.GetComponent<ConnectionLine>();
+            if (connectionLine != null)
+            {
+                connectionLine.SetConnectable(source, target);
+                connectionLines.Add(connectionLine);
+                return connectionLine;
+            }
+            return null;
+        }
+    }
+}