calendar: pull August's sanctoral calendar (pre-1955 pull, 8/12)

18 saints (14 real winners + 4 stubs), plus propers-slug updates for the
4 pre-existing August entries. Notable this month: several dates have a
real named secondary saint permanently subordinate to an unmodeled fixed
octave (Lawrence's own, the Assumption's) or the fixed Transfiguration --
excluded entirely rather than guessed at, since this app can't yet
represent the actual blocking primary (a known, deferred octave gap).
Most notable casualty: St. Clare (Aug 12).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/data/calendar/saints/st-lawrence.yml

@@ -1,8 +1,11 @@
 # Verified against Divinum Officium (web/www/horas/Latin/Sancti/08-10.txt,
 # untagged/default [Rank] block — the pre-1955 value, not the "(sed rubrica
-# 196)" alternate given alongside it in that file).
+# 196)" alternate given alongside it in that file). Propers backfilled
+# during the August pull (live kalendar/prayTertia check, 2026-08-10) now
+# that the collect-pulling methodology exists -- own proper collect and
+# antiphon.
 id: st-lawrence
 name: "St. Lawrence, Martyr"
 rank: duplex-2-classis
 common: common-of-a-martyr
-propers: null
+propers: "st-lawrence"