refactor!: 模块化拆分 src 结构，新增批量同步服务、查询解析器及前端分页/高级检索功能

- src/ 按 clients/services/api 分层，Config 提升至 crate 根
- 新增 batch_sync.rs（双源并行收割）、query_parser.rs（多平台检索式转换）
- build.rs 自动触发前端 npm install & build
- SearchPanel 支持分页/排序/每页条数/高级检索构建器，前端加入搜索缓存
- 新增 SyncPanel 替换 SettingsPanel；新增 live_search 集成测试

tests/live_search_test.rs

@@ -0,0 +1,65 @@
+// tests/live_search_test.rs
+use astroresearch::Config;
+use astroresearch::clients::ads::AdsClient;
+use astroresearch::clients::arxiv::ArxivClient;
+
+#[tokio::test]
+async fn test_live_search_comparisons() -> anyhow::Result<()> {
+    // 载入配置以获取 ADS_API_KEY
+    let config = Config::from_env();
+    if config.ads_api_key.is_empty() {
+        println!("警告: 未在环境配置中检测到 ADS_API_KEY，跳过 ADS 集成测试。");
+    }
+
+    let ads = AdsClient::new(config.ads_api_key.clone());
+    let arxiv = ArxivClient::new();
+
+    println!("================= 开始真实检索逻辑集成测试 =================");
+
+    // ----------------------------------------
+    // 测试 1: 比较 "OR" 与 "AND" 逻辑的数据量差异
+    // ----------------------------------------
+    let query_or = "\"hot subdwarf\" OR Gaia";
+    let query_and = "\"hot subdwarf\" AND Gaia";
+
+    if !config.ads_api_key.is_empty() {
+        let count_ads_or = ads.get_total_count(query_or).await?;
+        let count_ads_and = ads.get_total_count(query_and).await?;
+        println!("NASA ADS 平台:");
+        println!("  - (OR)  \"{}\" 匹配数: {} 篇", query_or, count_ads_or);
+        println!("  - (AND) \"{}\" 匹配数: {} 篇", query_and, count_ads_and);
+        assert!(count_ads_or > count_ads_and, "错误: OR 结果应该多于 AND");
+    }
+
+    let count_arxiv_or = arxiv.get_total_count(query_or).await?;
+    let count_arxiv_and = arxiv.get_total_count(query_and).await?;
+    println!("arXiv 平台:");
+    println!("  - (OR)  \"{}\" 匹配数: {} 篇", query_or, count_arxiv_or);
+    println!("  - (AND) \"{}\" 匹配数: {} 篇", query_and, count_arxiv_and);
+    assert!(count_arxiv_or > count_arxiv_and, "错误: arXiv 的 OR 结果应该多于 AND");
+
+    // ----------------------------------------
+    // 测试 2: 比较基础词组与含有 "NOT" 排除条件的数据量差异
+    // ----------------------------------------
+    let query_base = "\"hot subdwarf\"";
+    let query_not = "\"hot subdwarf\" NOT \"white dwarf\"";
+
+    if !config.ads_api_key.is_empty() {
+        let count_ads_base = ads.get_total_count(query_base).await?;
+        let count_ads_not = ads.get_total_count(query_not).await?;
+        println!("NASA ADS 平台:");
+        println!("  - (基础) \"{}\" 匹配数: {} 篇", query_base, count_ads_base);
+        println!("  - (排除) \"{}\" 匹配数: {} 篇", query_not, count_ads_not);
+        assert!(count_ads_base >= count_ads_not, "错误: 基础结果应该大于或等于排除后的结果");
+    }
+
+    let count_arxiv_base = arxiv.get_total_count(query_base).await?;
+    let count_arxiv_not = arxiv.get_total_count(query_not).await?;
+    println!("arXiv 平台:");
+    println!("  - (基础) \"{}\" 匹配数: {} 篇", query_base, count_arxiv_base);
+    println!("  - (排除) \"{}\" 匹配数: {} 篇", query_not, count_arxiv_not);
+    assert!(count_arxiv_base >= count_arxiv_not, "错误: arXiv 基础结果应该大于或等于排除后的结果");
+
+    println!("================= 真实检索逻辑集成测试全部通过 =================");
+    Ok(())
+}