Daily Runway and Receivables lines for the Home hero tiles

One point per day over the last six months (today and the same day six months back, inclusive, UTC) for the Home Runway and Receivables tiles. Runway uses the Live tile's formula: posted-books cash at the close of the day divided by the trailing-90-day posted operating net burn ending that day (divided by 3, half away from zero), floored; a day with no posted P&L line in its 90-day window has no point. Receivables is the posted balance of the AR control accounts at the close of the day, from the first posted day of the books. Both are exact minor-unit strings; each line fails closed on its own with a reason. Requires one concrete authorized legal entity, resolved like /metrics/burn-runway.