DRAFT fix: i18n Rebuild JA locale #734

Job	Run time
Security audit	11s
Jest tests & coverage	1m 15s
Build (Node 20.x)	55s
Lint commit messages	52s
Cypress E2E	3m 19s
Build (Node 22.x)	48s
Lint & format-check changed JS files	48s
	8m 8s

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