fix: revert Qwen model name to 'coder-model' as per user correction

lib/services/qwen-oauth.ts

@@ -1114,11 +1114,7 @@ Perform analysis based on provided instructions.`,
 
   getAvailableModels(): string[] {
     return [
-      "qwen2.5-coder-32b-instruct",
-      "qwen2.5-coder-7b-instruct",
-      "qwen-plus",
-      "qwen-turbo",
-      "qwen-max",
+      "coder-model",
     ];
   }
 }

lib/store.ts

@@ -64,12 +64,12 @@ const useStore = create<AppState>((set) => ({
   language: "en",
   selectedProvider: "qwen",
   selectedModels: {
-    qwen: "qwen2.5-coder-32b-instruct",
+    qwen: "coder-model",
     ollama: "gpt-oss:120b",
     zai: "glm-4.7",
   },
   availableModels: {
-    qwen: ["qwen2.5-coder-32b-instruct", "qwen2.5-coder-7b-instruct", "qwen-plus", "qwen-turbo", "qwen-max"],
+    qwen: ["coder-model"],
     ollama: ["gpt-oss:120b", "llama3.1", "gemma3", "deepseek-r1", "qwen3"],
     zai: ["glm-4.7", "glm-4.6", "glm-4.5", "glm-4.5-air", "glm-4-flash", "glm-4-flashx"],
   },