DocumentScheduleParser

Extracts and normalizes PowerSchool student schedules from PDFs across three common layouts (Tabular S1, Matrix weekly grid, Elementary time-block) into a unified JSON record set: student_id, course_name, period_exp, teacher, room, days_of_week. Handles wrapped/multi-line headers and cell text; can optionally create Google Calendar events via GOOGLEDOCS_SUITE_V2.