学校应用开通硬闸门：UserHome 贯通 schId 到 SDK getUserApp

- AppRemoteService/OpenApiAppRemoteServiceImpl 增 getUserApps(user,schoolId)、getAppById(user,appId,schoolId) 重载（原方法委托传 null）
- UserController.getUserApp 透传 schId 并删「schId 暂不参与」过时注释；getAppInfoById 同步带 schId 收窄

src/main/java/com/yunhai/userhome/service/impl/OpenApiAppRemoteServiceImpl.java

@@ -21,19 +21,29 @@ public class OpenApiAppRemoteServiceImpl implements AppRemoteService {
 
     @Override
     public List<BoaAppType> getUserApps(BoaUser user) {
+        return getUserApps(user, null);
+    }
+
+    @Override
+    public List<BoaAppType> getUserApps(BoaUser user, Integer schoolId) {
         if (user == null || user.getId() == null) {
             return Collections.emptyList();
         }
-        // PC 浏览器端；UserBase 侧已按 userId 权限过滤（组开通 ∪ 角色模块所属应用，超管全量）
-        return YschBaseOpenApi.getUserApp(user.getId(), ClientEnum.PC_BROWSER);
+        // PC 浏览器端；schoolId 透传 UserBase 做学校单点开通收窄（为空则服务端按身份/主归属兜底）
+        return YschBaseOpenApi.getUserApp(user.getId(), ClientEnum.PC_BROWSER, schoolId);
     }
 
     @Override
     public Optional<BoaApp> getAppById(BoaUser user, Integer appId) {
+        return getAppById(user, appId, null);
+    }
+
+    @Override
+    public Optional<BoaApp> getAppById(BoaUser user, Integer appId, Integer schoolId) {
         if (appId == null) {
             return Optional.empty();
         }
-        return getUserApps(user).stream()
+        return getUserApps(user, schoolId).stream()
                 .filter(t -> t.getApps() != null)
                 .flatMap(t -> t.getApps().stream())
                 .filter(a -> appId.equals(a.getId()))