fix: aihubmix provider model proxy rule (#6293)

Update AihubmixProvider.ts

Co-authored-by: zhaochenxue <zhaochenxue@bixin.cn>

src/renderer/src/providers/AiProvider/AihubmixProvider.ts

@@ -39,11 +39,12 @@ export default class AihubmixProvider extends BaseProvider {
    */
   private getProvider(model: Model): BaseProvider {
     const id = model.id.toLowerCase()
-
-    if (id.includes('claude')) {
+    // claude开头
+    if (id.startsWith('claude')) {
       return this.providers.get('claude')!
     }
-    if (id.includes('gemini')) {
+    // gemini开头 且不以-nothink、-search结尾
+    if (id.startsWith('gemini') && !id.endsWith('-nothink') && !id.endsWith('-search')) {
       return this.providers.get('gemini')!
     }
     if (isOpenAILLMModel(model)) {