feat: 按模型上下文自动配置智能体压缩阈值

- 从 llm.json 解析上下文与输出上限，并增强短模型 ID 匹配

- 切换模型、保存和试运行时按预算公式重算，目录缺失时回退 30K

- 修复模型列表接口未返回能力元数据

easyflow-api/easyflow-api-admin/src/main/java/tech/easyflow/admin/controller/ai/ModelController.java

@@ -9,7 +9,6 @@ import org.springframework.util.StringUtils;
 import org.springframework.web.bind.annotation.*;
 import tech.easyflow.ai.dto.ModelInvokeConfigDtos;
 import tech.easyflow.ai.entity.Model;
-import tech.easyflow.ai.entity.ModelProvider;
 import tech.easyflow.ai.entity.table.ModelTableDef;
 import tech.easyflow.ai.mapper.ModelMapper;
 import tech.easyflow.ai.service.ModelService;
@@ -27,7 +26,6 @@ import java.math.BigInteger;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
-import java.util.Optional;
 import java.util.stream.Collectors;
 
 /**
@@ -53,16 +51,7 @@ public class ModelController extends BaseCurdController<ModelService, Model> {
     @GetMapping("list")
     @SaCheckPermission("/api/v1/model/query")
     public Result<List<Model>> list(Model entity, Boolean asTree, String sortKey, String sortType) {
-        QueryWrapper queryWrapper = QueryWrapper.create(entity, buildOperators(entity));
-        queryWrapper.orderBy(buildOrderBy(sortKey, sortType, getDefaultOrderBy()));
-        List<Model> list = Tree.tryToTree(modelMapper.selectListWithRelationsByQuery(queryWrapper), asTree);
-        list.forEach(item -> {
-            String providerName = Optional.ofNullable(item.getModelProvider())
-                    .map(ModelProvider::getProviderName)
-                    .orElse("-");
-            item.setTitle(providerName + "/" + item.getTitle());
-        });
-        return Result.ok(list);
+        return Result.ok(service.listSelectableModels(entity, asTree, sortKey, sortType));
     }
 
     @GetMapping("getList")