feat: 地图列表批量删除 — checkbox多选+POST batch-delete API

backend/app/api/maps.py

@@ -123,6 +123,22 @@ def delete_map(map_id: int, db: Session = Depends(get_db)):
     return {"message": "已删除"}
 
 
+@router.post("/batch-delete")
+def batch_delete_maps(data: dict, db: Session = Depends(get_db)):
+    """批量删除战略地图"""
+    ids = data.get("ids", [])
+    if not ids:
+        raise HTTPException(400, "请选择要删除的地图")
+    deleted = 0
+    for mid in ids:
+        m = db.query(StrategicMap).filter(StrategicMap.id == mid).first()
+        if m:
+            db.delete(m)
+            deleted += 1
+    db.commit()
+    return {"message": f"已删除 {deleted} 个地图", "deleted": deleted}
+
+
 # ── 连线管理 ─────────────────────────────────
 
 def _get_connections(m: StrategicMap) -> list: