refactor(thread): 使用 threadId 替换 getId 方法

- 将 ai-cam-image-processor 线程命名中的 thread.getId() 替换为 thread.threadId()
- 将视频片段获取任务中的 Thread.currentThread().getId() 替换为 Thread.currentThread().threadId()
- 统一使用 threadId 方法提高代码一致性
- 保持线程标识符的唯一性和可读性

src/main/java/com/ycwl/basic/repository/SourceRepository.java

@@ -40,7 +40,7 @@ public class SourceRepository {
             Runtime.getRuntime().availableProcessors(),
             runnable -> {
                 Thread thread = new Thread(runnable);
-                thread.setName("ai-cam-image-processor-" + thread.getId());
+                thread.setName("ai-cam-image-processor-" + thread.threadId());
                 thread.setDaemon(true);
                 return thread;
             }

src/main/java/com/ycwl/basic/task/VideoPieceGetter.java

@@ -342,7 +342,7 @@ public class VideoPieceGetter {
                 ffmpegTask.setDuration(duration);
                 ffmpegTask.setOffsetStart(BigDecimal.valueOf(offset, 3));
                 // 使用时间戳和线程ID确保输出文件名唯一性，避免并发冲突
-                String uniqueSuffix = System.currentTimeMillis() + "_" + Thread.currentThread().getId();
+                String uniqueSuffix = System.currentTimeMillis() + "_" + Thread.currentThread().threadId();
                 File outFile = new File(deviceId.toString() + "_" + faceSampleId + "_" + uniqueSuffix + ".mp4");
                 ffmpegTask.setOutputFile(outFile.getAbsolutePath());
                 boolean result = startFfmpegTask(ffmpegTask);