fix(victory): align buttons with final type

The stage-complete settle type was renamed to final; update
the victory panel to match the value sent by MissionComp.

- show the secondary button on every settle result, labeled
  back for final and exit otherwise
- hide the next button only for the final settle type
- sync the bound confirm button visibility

assets/script/game/map/VictoryComp.ts

@@ -766,9 +766,9 @@ export class VictoryComp extends CCComp {
 
     /**
      * 统一更新按钮显隐与文案：
-     *   section（小节胜利）→ next="下一节"，btn 隐藏
-     *   victory（末关通关）→ btn="确认"，next 隐藏
-     *   defeat（失败）      → btn="确认"，next="再来一次"
+     *   section（小节胜利）→ btn="退出"，next="下一节"
+     *   final（末关通关）  → btn="返回"，next 隐藏
+     *   defeat（失败）      → btn="退出"，next="再来一次"
      */
     private updateButtonStates() {
         const btns = this.node.getChildByName("btns");
@@ -777,16 +777,18 @@ export class VictoryComp extends CCComp {
         const btnNode = btns.getChildByName("btn");
         const nextNode = btns.getChildByName("next");
 
-        // btn 确认按钮：仅小节胜利时隐藏
+        // btn 确认/退出按钮：所有结算类型都显示
         if (btnNode) {
-            btnNode.active = this.settleType !== "section";
+            btnNode.active = true;
             const label = btnNode.getChildByName("Label")?.getComponent(Label);
-            if (label) label.string = "确认";
+            if (label) {
+                label.string = this.settleType === "final" ? "返回" : "退出";
+            }
         }
 
         // next 按钮：小节胜利→"下一节"，失败→"再来一次"，末关通关隐藏
         if (nextNode) {
-            nextNode.active = this.settleType !== "victory";
+            nextNode.active = this.settleType !== "final";
             const label = nextNode.getChildByName("Label")?.getComponent(Label);
             if (label) {
                 label.string = this.settleType === "section" ? "下一节" : "再来一次";
@@ -795,7 +797,7 @@ export class VictoryComp extends CCComp {
 
         // 属性绑定的确认按钮同步显隐
         if (this.confirm_btn && this.confirm_btn.isValid) {
-            this.confirm_btn.active = this.settleType !== "section";
+            this.confirm_btn.active = true;
         }
     }