Fix Qwen OAuth and Ollama models listing

- Add generateUXDesignerPrompt method to QwenOAuthService
- Fix Ollama Cloud listModels to handle multiple response formats
- Improve Ollama models parsing with array/different response structures
- All providers now support UX Designer Prompt feature

lib/services/model-adapter.ts

@@ -1,8 +1,10 @@
 import type { ModelProvider, APIResponse, ChatMessage } from "@/types";
 import OllamaCloudService from "./ollama-cloud";
 import ZaiPlanService from "./zai-plan";
+import qwenOAuthService, { QwenOAuthConfig, QwenOAuthToken } from "./qwen-oauth";
 
 export interface ModelAdapterConfig {
+  qwen?: QwenOAuthConfig;
   ollama?: {
     apiKey?: string;
     endpoint?: string;
@@ -17,12 +19,27 @@ export interface ModelAdapterConfig {
 export class ModelAdapter {
   private ollamaService: OllamaCloudService;
   private zaiService: ZaiPlanService;
+  private qwenService = qwenOAuthService;
   private preferredProvider: ModelProvider;
 
   constructor(config: ModelAdapterConfig = {}, preferredProvider: ModelProvider = "ollama") {
     this.ollamaService = new OllamaCloudService(config.ollama);
     this.zaiService = new ZaiPlanService(config.zai);
     this.preferredProvider = preferredProvider;
+
+    if (config.qwen) {
+      if (config.qwen.apiKey) {
+        this.qwenService.setApiKey(config.qwen.apiKey);
+      }
+      if (config.qwen.accessToken) {
+        this.qwenService.setOAuthTokens({
+          accessToken: config.qwen.accessToken,
+          refreshToken: config.qwen.refreshToken,
+          expiresAt: config.qwen.expiresAt,
+          resourceUrl: config.qwen.resourceUrl,
+        });
+      }
+    }
   }
 
   setPreferredProvider(provider: ModelProvider): void {
@@ -37,6 +54,33 @@ export class ModelAdapter {
     this.zaiService = new ZaiPlanService({ apiKey });
   }
 
+  updateQwenApiKey(apiKey: string): void {
+    this.qwenService.setApiKey(apiKey);
+  }
+
+  updateQwenTokens(tokens?: QwenOAuthToken): void {
+    this.qwenService.setOAuthTokens(tokens);
+  }
+
+  async startQwenOAuth(): Promise<QwenOAuthToken> {
+    return await this.qwenService.signIn();
+  }
+
+  getQwenTokenInfo(): QwenOAuthToken | null {
+    return this.qwenService.getTokenInfo();
+  }
+
+  private buildFallbackProviders(...providers: ModelProvider[]): ModelProvider[] {
+    const seen = new Set<ModelProvider>();
+    return providers.filter((provider) => {
+      if (seen.has(provider)) {
+        return false;
+      }
+      seen.add(provider);
+      return true;
+    });
+  }
+
   private async callWithFallback<T>(
     operation: (service: any) => Promise<APIResponse<T>>,
     providers: ModelProvider[]
@@ -46,6 +90,9 @@ export class ModelAdapter {
         let service: any;
 
         switch (provider) {
+          case "qwen":
+            service = this.qwenService;
+            break;
           case "ollama":
             service = this.ollamaService;
             break;
@@ -70,22 +117,26 @@ export class ModelAdapter {
   }
 
   async enhancePrompt(prompt: string, provider?: ModelProvider, model?: string): Promise<APIResponse<string>> {
-    const providers: ModelProvider[] = provider ? [provider] : [this.preferredProvider, "ollama", "zai"];
+    const fallback = this.buildFallbackProviders(this.preferredProvider, "qwen", "ollama", "zai");
+    const providers: ModelProvider[] = provider ? [provider] : fallback;
     return this.callWithFallback((service) => service.enhancePrompt(prompt, model), providers);
   }
 
   async generatePRD(idea: string, provider?: ModelProvider, model?: string): Promise<APIResponse<string>> {
-    const providers: ModelProvider[] = provider ? [provider] : ["ollama", "zai", this.preferredProvider];
+    const fallback = this.buildFallbackProviders(this.preferredProvider, "qwen", "ollama", "zai");
+    const providers: ModelProvider[] = provider ? [provider] : fallback;
     return this.callWithFallback((service) => service.generatePRD(idea, model), providers);
   }
 
   async generateActionPlan(prd: string, provider?: ModelProvider, model?: string): Promise<APIResponse<string>> {
-    const providers: ModelProvider[] = provider ? [provider] : ["zai", "ollama", this.preferredProvider];
+    const fallback = this.buildFallbackProviders(this.preferredProvider, "qwen", "ollama", "zai");
+    const providers: ModelProvider[] = provider ? [provider] : fallback;
     return this.callWithFallback((service) => service.generateActionPlan(prd, model), providers);
   }
 
   async generateUXDesignerPrompt(appDescription: string, provider?: ModelProvider, model?: string): Promise<APIResponse<string>> {
-    const providers: ModelProvider[] = provider ? [provider] : [this.preferredProvider, "ollama", "zai"];
+    const fallback = this.buildFallbackProviders(this.preferredProvider, "qwen", "ollama", "zai");
+    const providers: ModelProvider[] = provider ? [provider] : fallback;
     return this.callWithFallback((service) => service.generateUXDesignerPrompt(appDescription, model), providers);
   }
 
@@ -98,6 +149,9 @@ export class ModelAdapter {
       let service: any;
 
       switch (provider) {
+        case "qwen":
+          service = this.qwenService;
+          break;
         case "ollama":
           service = this.ollamaService;
           break;
@@ -117,6 +171,7 @@ export class ModelAdapter {
 
   async listModels(provider?: ModelProvider): Promise<APIResponse<Record<ModelProvider, string[]>>> {
     const fallbackModels: Record<ModelProvider, string[]> = {
+      qwen: this.qwenService.getAvailableModels(),
       ollama: ["gpt-oss:120b", "llama3.1", "gemma3", "deepseek-r1", "qwen3"],
       zai: ["glm-4.7", "glm-4.5", "glm-4.5-air", "glm-4-flash", "glm-4-flashx"],
     };
@@ -148,6 +203,8 @@ export class ModelAdapter {
 
   getAvailableModels(provider: ModelProvider): string[] {
     switch (provider) {
+      case "qwen":
+        return this.qwenService.getAvailableModels();
       case "ollama":
         return this.ollamaService.getAvailableModels();
       case "zai":