fix: 修正硅基流动供应商标识

- 将错误的 siliconlow 标识统一更正为 siliconflow

- 对齐后端网关、品牌配置和管理端模型列表

easyflow-modules/easyflow-module-ai/src/main/java/tech/easyflow/ai/invoke/provider/openai/OpenAiGateway.java

@@ -26,7 +26,7 @@ public class OpenAiGateway extends AbstractOpenAiCompatibleGateway implements Mo
             "zhipu",
             "minimax",
             "kimi",
-            "siliconlow",
+            "siliconflow",
             "ollama",
             "self-hosted"
     );

easyflow-starter/easyflow-starter-all/src/main/resources/ai-brands.json

@@ -442,7 +442,7 @@
   },
   {
     "title": "硅基流动",
-    "key": "siliconlow",
+    "key": "siliconflow",
     "options":{
       "llmEndpoint":"https://api.siliconflow.cn",
       "chatPath":"/v1/chat/completions",

easyflow-ui-admin/app/src/views/ai/model/modelUtils/providerList.json

@@ -193,7 +193,7 @@
   },
   {
     "label": "硅基流动",
-    "value": "siliconlow",
+    "value": "siliconflow",
     "description": "聚合多家开源模型能力，适合快速接入主流开源生态。",
     "tags": ["开源模型", "聚合平台", "Embeddings"],
     "mode": "hosted",