Merge branch 'ef-rg112-rg110': the Holy Family, RG 112(a), observed identity

Builds the Feast of the Holy Family (RG 17(b), first Sunday after
Epiphany, II class), which did not exist in colitur at all -- it emitted
an ordinary Sunday on all 8417 days the feast occurs. Adds RG 112(a)'s
exclusion, on RG 95 paragraph 2's authority ('Si vero duo festa eiusdem
Divinae Personae ... fit de festo, quod in tabella praecedentiae
superiorem obtinet locum, et aliud omittitur'), corroborated by RG
112(a) and by the Holy Family Mass propers' own 13-January rubric.

Three validation layers had missed the missing feast, each for its own
reason: the differential because lectio lacks it too and shares
colitur's data lineage; the golden layer for want of a pin; and the
oracle because it compared the observed day's rank and colour but never
its identity. That last gap is the more important half of this change
and is now closed -- the oracle compares observed identity, with the
unresolvable population counted and pinned rather than silently skipped.

Also rescales RG 91's band table x10. entry_14_movable_band had been a
negative sentinel, chosen to avoid collision with a real table position;
it also inverted ordering, making a movable II-class feast of the Lord
outrank every I-class day. Unreachable on universal data, live the
moment a diocesan overlay places a I-class proper or indult feast in the
7-13 January window. A half-row is now an ordinary position between its
neighbours. The rescale was verified entry-by-entry against a
photographic scan and moves zero days across the domain.

RG 110 is NOT built despite the branch name; it remains open, as do the
Holy Name of Jesus office (missing in 3619 of 8417 years) and RG 98's
transfer-ordering mechanism.

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