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

frontend/src/components/CrawlInfo.vue

@@ -37,6 +37,20 @@
             <span v-else>-</span>
           </template>
         </el-table-column>
+        <el-table-column label="操作" width="100" fixed="right">
+          <template #default="{ row }">
+            <el-button
+              type="primary"
+              size="small"
+              @click="crawlSingleSource(row.source)"
+              :loading="crawlingSources.has(row.source)"
+              :disabled="crawlingSources.has(row.source)"
+            >
+              <el-icon><Refresh /></el-icon>
+              更新
+            </el-button>
+          </template>
+        </el-table-column>
       </el-table>
 
       <div class="summary" v-if="crawlStats.length > 0">
@@ -75,6 +89,7 @@ interface CrawlStat {
 
 const crawlStats = ref<CrawlStat[]>([])
 const loading = ref(false)
+const crawlingSources = ref<Set<string>>(new Set())
 
 const totalCount = computed(() => {
   return crawlStats.value.reduce((sum, item) => sum + item.count, 0)
@@ -113,6 +128,28 @@ const fetchCrawlStats = async () => {
   }
 }
 
+const crawlSingleSource = async (sourceName: string) => {
+  crawlingSources.value.add(sourceName)
+  try {
+    ElMessage.info(`正在更新 ${sourceName}...`)
+    const res = await axios.post(`/api/crawler/crawl/${encodeURIComponent(sourceName)}`)
+    
+    if (res.data.success) {
+      ElMessage.success(`${sourceName} 更新成功，获取 ${res.data.count} 条数据`)
+    } else {
+      ElMessage.error(`${sourceName} 更新失败: ${res.data.error || '未知错误'}`)
+    }
+    
+    // 刷新统计数据
+    await fetchCrawlStats()
+  } catch (error) {
+    console.error('Failed to crawl single source:', error)
+    ElMessage.error(`${sourceName} 更新失败`)
+  } finally {
+    crawlingSources.value.delete(sourceName)
+  }
+}
+
 onMounted(() => {
   fetchCrawlStats()
 })