🚆 Les trains usines - à l’intérieur d'un chantier ferroviaire ! - Monsieur Bidouille

Whole-channel inclusion: Monsieur Bidouille is an honest teaching channel (title sample + 3 transcripts read: All three transcripts show structured, research-based technical explainers consistent with the channel's educational vulgarization format.); this title passed a strict title check (sonnet) after a labelling pass.