Generate an interactive HTML tool for manually timestamping lyrics or script lines against an audio file. Opens in the browser — user plays audio, clicks each line when they hear it, exports precise timestamps. Trigger when the user says 'time these lyrics', 'tap the lines', 'timestamp this audio', 'sync lyrics to audio', 'line tapper', 'manual sync', 'mark the lines', or any variation of needing to manually align text to audio timing.
