update:个人训练新版新增靶型标志

src/pages/training/difficulty.vue

@@ -445,6 +445,16 @@ const selectedDifficulty = computed(() => {
   );
 });
 
+const targetTypeImageMap = {
+  20: "https://static.shelingxingqiu.com/shootmini/static/training-difficulty-design/20cm.png",
+  40: "https://static.shelingxingqiu.com/shootmini/static/training-difficulty-design/40cm.png",
+};
+
+// 根据接口返回的 target_type 展示当前难度使用的靶纸类型。
+const selectedTargetTypeImage = computed(() => {
+  return targetTypeImageMap[toNumber(selectedDifficulty.value?.target_type)] || "";
+});
+
 // 优先显示配置中的难度进度；没有配置时，再按已解锁等级推导完成态。
 const getCompletedDifficultyProgress = (node) => {
   const configuredProgress = Number(difficultyProgressMap.value[node?.id]);
@@ -808,6 +818,12 @@ onShow(() => {
           :title="selectedDifficulty.title"
           :lines="selectedDifficulty.summary"
         />
+        <image
+          v-if="selectedTargetTypeImage"
+          class="difficulty-page__target-type"
+          :src="selectedTargetTypeImage"
+          mode="aspectFit"
+        />
       </view>
 
       <view class="difficulty-page__start">
@@ -866,6 +882,16 @@ onShow(() => {
   margin: 0 auto;
 }
 
+.difficulty-page__target-type {
+  position: absolute;
+  top: 10rpx;
+  left: 2rpx;
+  z-index: 2;
+  width: 100rpx;
+  height: 74rpx;
+  pointer-events: none;
+}
+
 .difficulty-page__start {
   position: relative;
   flex: none;