Enqueue Google Translate, into locale only, for every construction/POM callout scene, the tech-pack content fields (style desc, fabric, colourway names, care instructions, BOM/POM table rows), and comments across all of the current user's tech pack jobs. Called when the user selects a language in the switcher - translation is lazy/on-demand, not eager, so this is the only place a locale actually gets translated into.

current_job_id, when given, moves that job to the front of the dispatch order so whatever the caller is actively looking at finishes translating first instead of queueing behind the rest of the account's job history.