feat: 添加单源爬取功能并优化数据库同步

新增单源爬取功能，支持在界面上单独更新每个数据源
添加数据库同步脚本，支持主从数据库结构同步和数据同步
优化华能集团爬虫的页面导航和稳定性
新增系统托盘功能，支持最小化到托盘

src/crawler/crawler.controller.ts

@@ -1,15 +1,19 @@
-import { Controller, Post, Get } from '@nestjs/common';
+import { Controller, Post, Get, Param, Body } from '@nestjs/common';
 import { BidCrawlerService } from './services/bid-crawler.service';
 
 @Controller('api/crawler')
 export class CrawlerController {
   private isCrawling = false;
+  private crawlingSources = new Set<string>();
 
   constructor(private readonly crawlerService: BidCrawlerService) {}
 
   @Get('status')
   getStatus() {
-    return { isCrawling: this.isCrawling };
+    return {
+      isCrawling: this.isCrawling,
+      crawlingSources: Array.from(this.crawlingSources)
+    };
   }
 
   @Post('run')
@@ -20,12 +24,12 @@ export class CrawlerController {
     
     this.isCrawling = true;
     
-    // We don't await this because we want it to run in the background 
+    // We don't await this because we want it to run in the background
     // and return immediately, or we can await if we want to user to wait.
     // Given the requirement "Immediate Crawl", usually implies triggering it.
     // However, for a better UI experience, we might want to wait or just trigger.
-    // Let's await it so that user knows when it's done (or failed), 
-    // assuming it doesn't take too long for the mock. 
+    // Let's await it so that user knows when it's done (or failed),
+    // assuming it doesn't take too long for the mock.
     // Real crawling might take long, so background is better.
     // For this prototype, I'll await it to show completion.
     try {
@@ -35,4 +39,20 @@ export class CrawlerController {
       this.isCrawling = false;
     }
   }
+
+  @Post('crawl/:sourceName')
+  async crawlSingleSource(@Param('sourceName') sourceName: string) {
+    if (this.crawlingSources.has(sourceName)) {
+      return { message: `Source ${sourceName} is already being crawled` };
+    }
+    
+    this.crawlingSources.add(sourceName);
+    
+    try {
+      const result = await this.crawlerService.crawlSingleSource(sourceName);
+      return result;
+    } finally {
+      this.crawlingSources.delete(sourceName);
+    }
+  }
 }