feat(ops): 工牌状态返回昵称字段，手动派单支持传入设备名称

- BadgeStatusRespDTO 新增 nickname 字段，透传设备昵称
- CleanManualDispatchReqDTO 新增 assigneeName，派单时携带设备显示名
- CleanWorkOrderServiceImpl 将 assigneeName 传递给派单引擎

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

viewsh-module-ops/viewsh-module-ops-api/src/main/java/com/viewsh/module/ops/api/clean/BadgeStatusRespDTO.java

@@ -26,6 +26,9 @@ public class BadgeStatusRespDTO {
     @Schema(description = "设备编码", example = "badge_001")
     private String deviceKey;
 
+    @Schema(description = "设备昵称（用户可读的显示名称）", example = "张三的工牌")
+    private String nickname;
+
     @Schema(description = "状态（IDLE/BUSY/OFFLINE/PAUSED）", example = "IDLE")
     private String status;