[AI-72] LangGraph plugin samples (#289) #1197

Job	Run time
build-lint-test (3.10, macos-intel)	8m 39s
build-lint-test (3.14, ubuntu-latest)	9m 19s
build-lint-test (3.10, ubuntu-latest)	6m 4s
build-lint-test (3.10, windows-latest)	7m 21s
build-lint-test (3.14, windows-latest)	9m 22s
build-lint-test (3.10, macos-arm)	6m 23s
build-lint-test (3.14, macos-arm)	8m 7s
build-lint-test (3.14, macos-intel)	18m 14s
	1h 13m 29s

Provide feedback