feat(showcase): 演示作用于选中记录的批量 action #11136

Job	Run time
filter	9s
Temporal Conformance (live PG + MySQL)	2m 7s
Dogfood Regression Gate (2/2)	3m 23s
Test Core	5m 22s
Dogfood Regression Gate (1/2)	5m 10s
Build Core	2m 1s
Build Docs	0s
Check Generated Artifacts	0s
Dogfood Regression Gate	3s
	18m 15s

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