feat: 合并 Docker Compose、标注表格优化与部署文档

将 platform + CVAT 合并为单文件 docker-compose.yml，完善 .env 与 init/dev_up 脚本；
新增 docs/DEPLOY.md 与更新 README 以支持新机器部署；含数据湖示例、车队地图、
紧凑表格 UI、ADAS det_7cls 路径与批次台账等近期改动。

Co-authored-by: Cursor <cursoragent@cursor.com>

platform/as_platform/fleet/service.py

@@ -377,9 +377,14 @@ def get_live_fleet(db: Session) -> dict[str, Any]:
     items = []
     for v in vehicles:
         active = get_active_run(db, v.id)
+        row = v.to_dict()
+        row["vehicle_id"] = row["id"]
+        row["lat"] = row.get("last_lat")
+        row["lng"] = row.get("last_lng")
+        row["speed_kmh"] = row.get("last_speed_kmh")
         items.append(
             {
-                **v.to_dict(),
+                **row,
                 "active_run_id": active.id if active else None,
                 "active_mileage_km": active.mileage_km if active else None,
                 "active_run_no": active.run_no if active else None,