test

Fix undefined variables and make it impossible to have them #3343

Job	Run time
test (20.x)	2m 1s
backend (node env, api-test) (22.x)	2m 38s
test (22.x)	2m 6s
puterjs (node env, vitest) (22.x)	1m 20s
puterjs (browser env, playwright)	-1s
	8m 4s

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