功能：预置车辆违停和车辆拥堵算法定义

PRESET_ALGORITHMS新增illegal_parking和vehicle_congestion，
target_class为car,truck,bus,motorcycle，包含完整paramSchema定义。
WVP启动时自动初始化到wvp_ai_algorithm表。

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

src/main/java/com/genersoft/iot/vmp/aiot/service/impl/AiAlgorithmServiceImpl.java

@@ -47,11 +47,14 @@ public class AiAlgorithmServiceImpl implements IAiAlgorithmService {
                 "周界入侵检测", "person", "检测人员进入指定区域。算法抽帧频率：1帧/秒（固定）。持续检测到人5秒触发告警，持续无人180秒自动结束告警。消失确认期间短暂有人(<5秒)不影响倒计时。",
                 "{\"cooldown_seconds\":{\"type\":\"int\",\"default\":300,\"min\":0},\"confirm_seconds\":{\"type\":\"int\",\"default\":5,\"min\":1},\"confirm_intrusion_seconds\":{\"type\":\"int\",\"default\":5,\"min\":1},\"confirm_clear_seconds\":{\"type\":\"int\",\"default\":180,\"min\":1}}"
         });
-        // 人群聚集检测暂时注释，边缘端未启用
-        // PRESET_ALGORITHMS.put("crowd_detection", new String[]{
-        //         "人群聚集检测", "person", "检测区域内人员数量是否超过阈值",
-        //         "{\"max_count\":{\"type\":\"int\",\"default\":10,\"min\":1},\"cooldown_seconds\":{\"type\":\"int\",\"default\":300,\"min\":0}}"
-        // });
+        PRESET_ALGORITHMS.put("illegal_parking", new String[]{
+                "车辆违停检测", "car,truck,bus,motorcycle", "检测禁停区域内是否有车辆违规停放。确认车辆停留15秒后开始5分钟倒计时，超时触发告警。车辆离开30秒后自动结束告警。",
+                "{\"confirm_vehicle_sec\":{\"type\":\"int\",\"default\":15,\"min\":5},\"parking_countdown_sec\":{\"type\":\"int\",\"default\":300,\"min\":60},\"confirm_clear_sec\":{\"type\":\"int\",\"default\":30,\"min\":10},\"cooldown_sec\":{\"type\":\"int\",\"default\":600,\"min\":0}}"
+        });
+        PRESET_ALGORITHMS.put("vehicle_congestion", new String[]{
+                "车辆拥堵检测", "car,truck,bus,motorcycle", "检测区域内车辆是否拥堵。当平均车辆数达到阈值并持续60秒触发告警，车辆减少并持续120秒后自动结束告警。",
+                "{\"count_threshold\":{\"type\":\"int\",\"default\":3,\"min\":1},\"confirm_congestion_sec\":{\"type\":\"int\",\"default\":60,\"min\":10},\"confirm_clear_sec\":{\"type\":\"int\",\"default\":120,\"min\":10},\"cooldown_sec\":{\"type\":\"int\",\"default\":600,\"min\":0}}"
+        });
     }
 
     @PostConstruct