refactor(photography): 简化相机焦段距离字段标签

- 将"相机焦段距离(mm)"标签简化为"焦段距离(mm)"
- 保持原有的输入验证和禁用状态逻辑不变

frontend/src/views/Photography/components/editRow.vue

@@ -44,7 +44,7 @@
         <div class="error-msg">最小-5，最大30</div>
       </el-form-item>
       <!-- 相机焦段距离 - 仅当设备支持时显示 -->
-      <el-form-item label="相机焦段距离(mm)" v-if="hasCameraFocal" :class="{'is-disabled': isMultiCameraMode && editRowData.is_move_device === 0}">
+      <el-form-item label="焦段距离(mm)" v-if="hasCameraFocal" :class="{'is-disabled': isMultiCameraMode && editRowData.is_move_device === 0}">
         <el-input v-model="editRowData.camera_focal_distance" @change="changeNum('camera_focal_distance', 0, maxFocalDistance)" :min="0" :max="maxFocalDistance" :step="1" style="width: 170px;" type="number" :disabled="isMultiCameraMode && editRowData.is_move_device === 0">
         </el-input>
         <div class="error-msg">最小0，最大{{ maxFocalDistance }}</div>