fix: DbSelector 数据库 key 数量使用 INFO keyspace 直接获取

- 改用 INFO keyspace 命令替代解析完整 INFO 输出,避免正则匹配 Keyspace 段失败
- activeId 变化时重新获取 DB 数量和 key 计数
- expose refreshDbCounts 方法供父组件调用

src/renderer/src/components/key/DbSelector.vue

@@ -90,18 +90,18 @@ async function fetchDbInfo() {
   }
 
   try {
-    const info = await connStore.getInfo()
+    // Use INFO keyspace directly for reliable parsing
+    const info: any = await window.electronAPI.redis.execute(
+      connStore.activeId, 'INFO', ['keyspace']
+    )
     const keyspace: Record<number, number> = {}
-    const match = info.match(/# Keyspace[\s\S]*?(?=\n#|$)/)
-    if (match) {
-      const lines = match[0].split('\n')
+    const lines = String(info).split('\n')
     for (const line of lines) {
       const dbMatch = line.match(/^db(\d+):keys=(\d+)/)
       if (dbMatch) {
         keyspace[parseInt(dbMatch[1], 10)] = parseInt(dbMatch[2], 10)
       }
     }
-    }
     for (let i = 0; i < dbCount.value; i++) {
       if (!(i in keyspace)) {
         keyspace[i] = 0
@@ -127,8 +127,13 @@ watch(
 
 watch(
   () => connStore.activeId,
-  () => {
+  async () => {
     loadCustomNames()
+    if (connStore.isConnected) {
+      selectedDb.value = 0
+      keyStore.currentDb = 0
+      await fetchDbInfo()
+    }
   }
 )
 
@@ -143,6 +148,8 @@ function formatCount(n: number): string {
   if (n >= 10000) return `${(n / 1000).toFixed(0)}k`
   return String(n)
 }
+
+defineExpose({ refreshDbCounts: fetchDbInfo })
 </script>
 
 <template>