Turns a script into a narrated explainer ad staged on one constant background and cut as a single continuous camera journey: five stage lanes to pick from, four shot types chosen from what each line is doing, a named transition class at every seam, and one start frame per beat. Use when someone asks for a blue-stage explainer ad, a one-continuous-take explainer, or an ad in that widely imitated narrated-explainer format. Boundary: `talking-character-ad` is the format where a character speaks to camera instead of a narrator speaking over it, `skeleton-ad` is the escalating-progression narration format, `song-ad` is the sung one, and `claymation-ad` or `paper-animation-ad` …
