多轮审查和修复

Assets/Scripts/Core/Validation/IValidatable.cs

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+using System.Collections.Generic;
+
+namespace BaseGames.Core
+{
+    public enum ValidationSeverity { Error, Warning }
+
+    /// <summary>
+    /// 单条验证结果：严重级别 + 消息文本。
+    /// 使用静态工厂方法 Error() / Warning() 创建。
+    /// </summary>
+    public readonly struct ValidationResult
+    {
+        public ValidationSeverity Severity { get; }
+        public string             Message  { get; }
+
+        public ValidationResult(ValidationSeverity severity, string message)
+        {
+            Severity = severity;
+            Message  = message;
+        }
+
+        public static ValidationResult Error(string message)   => new(ValidationSeverity.Error,   message);
+        public static ValidationResult Warning(string message) => new(ValidationSeverity.Warning, message);
+    }
+
+    /// <summary>
+    /// 可验证 ScriptableObject 接口。实现此接口的 SO 会被 SOValidationRunner 自动扫描。
+    /// Validate() 返回零条结果 = 数据合法；否则每条按 <see cref="ValidationResult.Severity"/> 分类报告。
+    /// </summary>
+    public interface IValidatable
+    {
+        IEnumerable<ValidationResult> Validate();
+    }
+}

Assets/Scripts/Core/Validation/IValidatable.cs.meta

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