refactor(system): 优化内部协议判断与配置路径管理

调整模型列表转换的协议匹配条件，以提升不同提供者间数据适配的精确性。
同步更新提供者池配置的持久化逻辑，允许通过全局配置自定义存储文件路径，增强系统部署的灵活性。

src/common.js

@@ -363,7 +363,7 @@ export async function handleModelListRequest(req, res, service, endpointType, CO
 
         // 2. Convert the model list to the client's expected format, if necessary.
         let clientModelList = nativeModelList;
-        if (getProtocolPrefix(fromProvider).includes(getProtocolPrefix(toProvider))) {
+        if (!getProtocolPrefix(toProvider).includes(getProtocolPrefix(fromProvider))) {
             console.log(`[ModelList Convert] Converting model list from ${toProvider} to ${fromProvider}`);
             clientModelList = convertData(nativeModelList, 'modelList', toProvider, fromProvider);
         } else {

src/provider-pool-manager.js

@@ -305,7 +305,7 @@ export class ProviderPoolManager {
      */
     async _saveProviderPoolsToJson(providerTypeToUpdate) {
         try {
-            const filePath = 'provider_pools.json';
+            const filePath = this.globalConfig.PROVIDER_POOLS_FILE_PATH || 'provider_pools.json';
             let currentPools = {};
             try {
                 const fileContent = await fs.promises.readFile(filePath, 'utf8');