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0ca1adf2a4
refactor(video): P2 应用层时间字段 varchar → datetime / String → LocalDateTime
SQL 类型优化（应用层生成的业务时间改为标准 datetime）：
- video_ai_edge_device: last_heartbeat / updated_at
- video_ai_config_log: updated_at
- video_ai_config_snapshot: created_at
- video_ai_algorithm: sync_time
- video_ai_alert: received_at
- video_media_server: last_keepalive_time
DO 字段 String → LocalDateTime 对齐：AiEdgeDevice / AiConfigLog /
AiConfigSnapshot / AiAlgorithm / AiAlert / MediaServer
调用点适配：
- Service 层 new Date() 字符串格式化赋值统一改为 LocalDateTime.now()
- AiAlertController.edgeReport / MqttService.handleAlert 新增
parseEventTime / parseTimestamp 私有方法，外部字符串防御性解析
保留 varchar（本批次暂不动，SIP 协议原生字符串，改动涉及 72+ 处
Mapper 与 SIP 处理器，单独迭代）：
- video_device.register_time / keepalive_time
- video_device_channel.end_time / gps_time
- video_device_mobile_position.time
- video_stream_push.push_time
编译通过（mvn compile BUILD SUCCESS）。
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-21 12:32:23 +08:00
..
2026-04-21 10:15:02 +08:00
2026-04-21 12:32:23 +08:00
2026-04-21 10:15:02 +08:00