feat(ops): 新增轨迹统计接口 summary/hourly-trend/area-stay-stats

- summary: KPI 卡片（作业时长、覆盖区域数、事件数、平均停留）
- hourly-trend: 按小时聚合出入趋势
- area-stay-stats: 区域停留分布（含 fullAreaName，按时长降序）
- deviceId 可选，不传则汇总全部设备
- selectByDateAndDevice 加 LIMIT 5000 安全上限
- 删除无调用方的 selectTimeline 方法
- enrichWithAreaInfo 改用 buildPaths 批量构建路径

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

viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/dal/mysql/trajectory/OpsDeviceTrajectoryMapper.java

@@ -68,16 +68,19 @@ public interface OpsDeviceTrajectoryMapper extends BaseMapperX<OpsDeviceTrajecto
     }
 
     /**
-     * 查询某设备某天的轨迹时间线（不分页，按进入时间升序）
+     * 查询某天的轨迹记录（deviceId 可选，为 null 则查全部设备）
+     * <p>
+     * 安全上限 5000 条，防止全量加载过多数据到内存
      */
-    default List<OpsDeviceTrajectoryDO> selectTimeline(Long deviceId, LocalDate date) {
+    default List<OpsDeviceTrajectoryDO> selectByDateAndDevice(LocalDate date, Long deviceId) {
         LocalDateTime start = date.atStartOfDay();
         LocalDateTime end = date.plusDays(1).atStartOfDay();
         return selectList(new LambdaQueryWrapperX<OpsDeviceTrajectoryDO>()
-                .eq(OpsDeviceTrajectoryDO::getDeviceId, deviceId)
+                .eqIfPresent(OpsDeviceTrajectoryDO::getDeviceId, deviceId)
                 .ge(OpsDeviceTrajectoryDO::getEnterTime, start)
                 .lt(OpsDeviceTrajectoryDO::getEnterTime, end)
-                .orderByAsc(OpsDeviceTrajectoryDO::getEnterTime));
+                .orderByAsc(OpsDeviceTrajectoryDO::getEnterTime)
+                .last("LIMIT 5000"));
     }
 
 }

viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/service/trajectory/dto/TrajectorySummaryDTO.java

@@ -20,22 +20,16 @@ import lombok.NoArgsConstructor;
 @AllArgsConstructor
 public class TrajectorySummaryDTO {
 
-    @Schema(description = "总轨迹记录数（含未关闭）", example = "42")
-    private Long totalRecords;
+    @Schema(description = "总作业时长(秒)", example = "7200")
+    private Long workDurationSeconds;
 
-    @Schema(description = "已完成记录数（有离开时间）", example = "38")
-    private Long completedRecords;
-
-    @Schema(description = "覆盖区域数", example = "8")
+    @Schema(description = "覆盖区域数", example = "5")
     private Long coveredAreaCount;
 
-    @Schema(description = "总停留时长(秒)", example = "28800")
-    private Long totalDurationSeconds;
+    @Schema(description = "总出入事件数", example = "42")
+    private Long totalEvents;
 
-    @Schema(description = "平均停留时长(秒)", example = "685")
-    private Long avgDurationSeconds;
-
-    @Schema(description = "最长单次停留(秒)", example = "3600")
-    private Long maxDurationSeconds;
+    @Schema(description = "平均停留时长(秒)", example = "171")
+    private Long avgStaySeconds;
 
 }