Revise daily-structure and fasting-boundary for the full corpus
daily-structure now traces the protocol from the founding eight rules
(flexible four-hour window, grazing bracket) through the 2017-18
tolerance to the late fixed-minute absolutism, presenting strictness as
a hardening over an unchanged discipline. fasting-boundary documents
the line's actual widths (founding wine/beer/milk beverage, the
20-30-calorie self-test, the operative 15-20-calorie threshold vs. the
preached zero) and the full ACV starter-tool arc. Six early-era
representative sources added.
