feat: 原始上报数据存储（raw_batch 表/脱敏/访客关联/详情页 Tab/30天清理）

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

server/tracker/management/commands/cleanup_raw.py

@@ -0,0 +1,19 @@
+from datetime import timedelta
+
+from django.core.management.base import BaseCommand
+from django.utils import timezone
+from tracker.models import RawBatch
+
+
+class Command(BaseCommand):
+    # 生产调度：1Panel 计划任务每日执行（与 refresh_stats 同款）
+    #   docker exec <web容器> python manage.py cleanup_raw --days 30
+    help = "清理 N 天前的原始上报批次（raw_batch 默认保留 30 天）"
+
+    def add_arguments(self, parser):
+        parser.add_argument("--days", type=int, default=30)
+
+    def handle(self, *args, **opts):
+        cutoff = timezone.now() - timedelta(days=opts["days"])
+        deleted, _ = RawBatch.objects.filter(received_at__lt=cutoff).delete()
+        self.stdout.write(f"deleted {deleted} raw batches")