feat: 添加AI推荐功能及自动刷新机制

新增AI推荐模块，包括后端数据获取接口和前端展示组件
实现自动刷新功能，每5分钟自动更新当前标签页数据
添加手动刷新按钮，优化用户交互体验

widget/looker/frontend/wailsjs/go/models.ts

@@ -1,5 +1,23 @@
 export namespace main {
 	
+	export class AiRecommendation {
+	    id: string;
+	    title: string;
+	    confidence: number;
+	    createdAt: string;
+	
+	    static createFrom(source: any = {}) {
+	        return new AiRecommendation(source);
+	    }
+	
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.id = source["id"];
+	        this.title = source["title"];
+	        this.confidence = source["confidence"];
+	        this.createdAt = source["createdAt"];
+	    }
+	}
 	export class BidItem {
 	    id: string;
 	    title: string;