feat(aiot): 告警详情和列表显示摄像头名称

- AiAlert添加cameraName字段
- Mapper查询时LEFT JOIN wvp_stream_proxy表获取gb_name
- 通过camera_code关联查询
- 优先显示cameraName，降级显示cameraId

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/main/java/com/genersoft/iot/vmp/aiot/bean/AiAlert.java

@@ -16,6 +16,9 @@ public class AiAlert {
     @Schema(description = "摄像头ID")
     private String cameraId;
 
+    @Schema(description = "摄像头名称（关联查询）")
+    private String cameraName;
+
     @Schema(description = "ROI区域ID")
     private String roiId;
 

src/main/java/com/genersoft/iot/vmp/aiot/dao/AiAlertMapper.java

@@ -15,17 +15,20 @@ public interface AiAlertMapper {
     @Options(useGeneratedKeys = true, keyProperty = "id", keyColumn = "id")
     int add(AiAlert alert);
 
-    @Select("SELECT a.*, r.name AS roi_name FROM wvp_ai_alert a " +
+    @Select("SELECT a.*, r.name AS roi_name, sp.gb_name AS camera_name FROM wvp_ai_alert a " +
             "LEFT JOIN wvp_ai_roi r ON a.roi_id = r.roi_id " +
+            "LEFT JOIN wvp_stream_proxy sp ON a.camera_id = sp.camera_code " +
             "WHERE a.alert_id=#{alertId}")
     @Results({
-            @Result(property = "roiName", column = "roi_name")
+            @Result(property = "roiName", column = "roi_name"),
+            @Result(property = "cameraName", column = "camera_name")
     })
     AiAlert queryByAlertId(@Param("alertId") String alertId);
 
     @Select(value = {"<script>" +
-            "SELECT a.*, r.name AS roi_name FROM wvp_ai_alert a " +
+            "SELECT a.*, r.name AS roi_name, sp.gb_name AS camera_name FROM wvp_ai_alert a " +
             "LEFT JOIN wvp_ai_roi r ON a.roi_id = r.roi_id " +
+            "LEFT JOIN wvp_stream_proxy sp ON a.camera_id = sp.camera_code " +
             "WHERE 1=1 " +
             "<if test='cameraId != null'> AND a.camera_id=#{cameraId}</if> " +
             "<if test='alertType != null'> AND a.alert_type=#{alertType}</if> " +
@@ -34,7 +37,8 @@ public interface AiAlertMapper {
             "ORDER BY a.received_at DESC" +
             "</script>"})
     @Results({
-            @Result(property = "roiName", column = "roi_name")
+            @Result(property = "roiName", column = "roi_name"),
+            @Result(property = "cameraName", column = "camera_name")
     })
     List<AiAlert> queryList(@Param("cameraId") String cameraId,
                             @Param("alertType") String alertType,