fix: Redis侧边栏扫描也自动补通配符

RedisScanKeys 端点的 pattern 参数无通配符时自动追加 *，
与查询页 KEYS 命令行为一致，输入 match 即匹配 match*

backend/internal/handler/redis.go

@@ -120,6 +120,10 @@ func RedisScanKeys(c *gin.Context) {
 	id := c.Param("id")
 	dbParam := c.Query("db")
 	pattern := c.DefaultQuery("pattern", "*")
+	// Auto-append * if pattern has no wildcard (user-friendly fuzzy search)
+	if !strings.Contains(pattern, "*") && !strings.Contains(pattern, "?") && !strings.Contains(pattern, "[") {
+		pattern = pattern + "*"
+	}
 	count, _ := strconv.Atoi(c.DefaultQuery("count", "100"))
 	cursorParam := c.DefaultQuery("cursor", "0")