/today: the Ledger, one day

1. git pull --rebase origin main, then python3 engine/darrow.py today (add --date if $ARGUMENTS names a day).
2. Read only the sections today needs, never the whole files:
   • a knee session day: python3 engine/darrow.py doc state "session a" (or "session b"), plus doc state "progression rules" if a change is due;
   • every day: the daily-minimum and bike lines in real/NOW.md → Plan in force (doc state "daily minimum" for the full text);
   • an upper, accessory or power day: doc addon 3 (sessions);
   • a sport day (template sport): this week's row of doc sport "first 12 weeks" (week 1 = Sun 10/11) and that week in the guide (doc sportguide "week N"), only as far as the current stage allows (config.json → sport.stage);
   • a PT day: the one question list, doc state "next visit" (State §5), plus anything real/NOW.md → Next PT visit adds since, and the newest PT Notes entry (doc ptnotes <date>) if the last visit changed anything.
     The newest PT Notes entry outranks the State until the checkpoint folds it in (real/NOW.md says when).
3. Answer, real numbers only, compact enough for a phone:
   • Planned today: each session with today's doses (e.g., Session A: SL sit-to-stand 24" 2 × 12 L …), the floor minimum, conditioning, and the minimum version if he's short on time (the plan's "short on time" cut order).
   • Done so far (from the engine).
   • Still open: the engine's Still open line, which already holds the day's planned sessions with plan changes applied (a red-light day owes none), in priority order: floor first, then the knee session, then add-ons. It means nothing is recorded yet, not that it wasn't done: if he says he did it, that's a /log. A partial session or a missed PT visit is recorded, so it isn't open. The optional add-ons (optional this week) are never on it: mention one only if he asks, and never before its from date.
   • Nutrition: kcal and protein to go, and one practical way to close the gap (based on what he usually eats).
   • The project: the engine's Project: line as a reminder of the next task of the week's work ("project: park the CRV"), never as a debt; none open: five words, no more. A task he reports done is /project.
   • PT day: list the questions to ask.
4. No story content. If he wants the story, that's /saga.