refactor(all): add test file

data/reports/scatter/three_traces.csv

+trace1,trace2,trace3
+10,16,12
+15,5,9
+13,11,15
+17,9,12

data/reports/scatter/three_traces_flow.csv

+FLOW ID,是否启用,名称,触发条件,触发条件参数,存储模式,
+70121,TRUE,three_traces_flow,Manual,,Memory,
+,,,,,,
+FLOW ID,节点ID,名称,节点类型,参数,,
+70121,1,plot_data,SOURCE_URL,https://shufengdong.github.io/sparrowzz/data/reports/scatter/three_traces.csv,,
+,,,,,,
+FLOW ID,首尾节点,动作名称,DESC,动作类型,动作参数,