Added the system from trail

Runtime/EncounterDialogOptionSet.cs

@@ -0,0 +1,48 @@
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Jovian.EncounterSystem {
+    /// <summary>
+    /// Reusable asset containing the dialog options shown for an encounter. Stored as an asset so a
+    /// single set can be shared across encounters when the same choices apply. When <see cref="id"/>
+    /// changes the asset file auto-renames to match (editor-only).
+    /// </summary>
+    [CreateAssetMenu(fileName = "EncounterDialogOptionSet", menuName = "Jovian/Encounter System/Dialog Option Set", order = 2)]
+    public class EncounterDialogOptionSet : ScriptableObject {
+        /// <summary>Designer-facing identifier for this option set. The asset file renames to match.</summary>
+        public string id;
+
+        /// <summary>Ordered list of options presented to the player.</summary>
+        public List<EncounterDialogOption> options;
+
+#if UNITY_EDITOR
+        private void OnValidate() {
+            if(string.IsNullOrEmpty(id)) {
+                return;
+            }
+
+            // Deferred — AssetDatabase calls are unsafe from OnValidate.
+            UnityEditor.EditorApplication.delayCall += RenameToMatchId;
+        }
+
+        private void RenameToMatchId() {
+            if(this == null || string.IsNullOrEmpty(id)) {
+                return;
+            }
+
+            var path = UnityEditor.AssetDatabase.GetAssetPath(this);
+            if(string.IsNullOrEmpty(path)) {
+                return;
+            }
+            if(name == id) {
+                return;
+            }
+
+            var error = UnityEditor.AssetDatabase.RenameAsset(path, id);
+            if(!string.IsNullOrEmpty(error)) {
+                Debug.LogWarning($"[EncounterDialogOptionSet] Could not rename '{path}' to '{id}': {error}", this);
+            }
+        }
+#endif
+    }
+}