fix(health): 修复迁移外键表名引用 + 公开轮播图签名 URL 路径拼接

crates/erp-health/src/service/banner_service.rs

@@ -307,10 +307,11 @@ pub async fn list_public_banners(
 
             let (token, expires) =
                 generate_signed_url(&media.storage_path, &signing_secret(), 3600);
+            let clean_path = media.storage_path.trim_start_matches("./");
             let image_url = format!(
-                "{}{}?expires={}&token={}",
+                "{}/{}?expires={}&token={}",
                 base_url.trim_end_matches('/'),
-                media.storage_path,
+                clean_path,
                 expires,
                 token
             );