refactor(utils): 优化部分代码格式和模板结构

- 合并三元表达式成一行提高代码简洁度
- 调整Vue模板中的文本拼接格式，确保括号显示正确
- 移除多余空行，保持代码整洁
- 合并多行span标签，减少代码冗余
- 优化条件渲染中标签内容的排版和间距

src/utils/dtdManager.ts

@@ -231,9 +231,7 @@ function findChildOccurrence(model: DtdContentModel, childTagName: string, paren
 
     if (model.type === 'elementRef' && model.name === childTagName) {
         if (isRepeatable) {
-            return model.occurrence === 'oneOrMore' || model.occurrence === 'once'
-                ? 'oneOrMore'
-                : 'zeroOrMore'
+            return model.occurrence === 'oneOrMore' || model.occurrence === 'once' ? 'oneOrMore' : 'zeroOrMore'
         }
         return model.occurrence
     }

src/views/editor/components/DocNodeRenderer/index.vue

@@ -273,13 +273,14 @@
                 @click.stop="editorStore.setSelectedNodeId(node.id)"
             >
                 <template v-if="!insideRefBlock">
-                    {{ isChineseContext ? '(参考: ' : '(Ref: '
-                    }}<span
+                    {{ isChineseContext ? '(参考: ' : '(Ref: ' }}
+                    <span
                         contenteditable="true"
                         class="focus:outline-none focus:bg-fill-3 px-0.5 rounded inline"
                         @blur="handleTextBlur"
                         v-text="node.textContent || node.attributes.REFLOC || '—'"
-                    ></span>{{ ')' }}
+                    ></span>
+                    {{ ')' }}
                 </template>
                 <template v-else>
                     <span
@@ -292,7 +293,6 @@
             </span>
         </template>
 
-
         <!-- 8.5 GRPHCREF (图形交叉引用) 特殊处理 -->
         <template v-else-if="node.tagName === 'GRPHCREF'">
             <span
@@ -459,12 +459,8 @@
                 <template v-if="node.children && node.children.length > 0">
                     <template v-for="childTag in COMPOSITE_CONTAINER_MAP[node.tagName]" :key="childTag">
                         <template v-if="node.children.find((c) => c.tagName === childTag)">
-                            <span v-if="childTag === 'CSN'" class="text-color3 select-none mx-0.5">
-                                (Fin: 
-                            </span>
-                            <span v-else-if="childTag === 'ITEMNBR'" class="text-color3 select-none mx-0.5">
-                                (Nbr: 
-                            </span>
+                            <span v-if="childTag === 'CSN'" class="text-color3 select-none mx-0.5">(Fin:</span>
+                            <span v-else-if="childTag === 'ITEMNBR'" class="text-color3 select-none mx-0.5">(Nbr:</span>
                             <DocNodeRenderer :node="node.children.find((c) => c.tagName === childTag)!" :parent="node" is-inline />
                             <span v-if="childTag === 'CSN' || childTag === 'ITEMNBR'" class="text-color3 select-none mx-0.5">)</span>
                         </template>