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/sanctoral-calendar.yml

@@ -155,10 +155,42 @@ days:
   "07-28": [ss-nazarius-celsus-victor-and-innocent]
   "07-29": [st-martha, ss-felix-simplicius-faustinus-and-beatrix]
   "07-30": [ss-abdon-and-sennen]
-  "08-09": [vigil-of-st-lawrence]
+  # August — 8/12 of the pre-1955 pull. Four pre-existing entries from
+  # before this pull initiative (vigil-of-st-lawrence, st-lawrence,
+  # assumption, st-augustine) got their propers backfilled this month; see
+  # their own files. A genuinely new wrinkle this month: several dates
+  # have a real, named secondary saint permanently subordinate to a
+  # fixed, non-movable *octave* day (Lawrence's own Aug 10-17 octave, the
+  # Assumption's Aug 15-22 octave) or to the fixed Transfiguration (Aug
+  # 6) -- octaves and fixed Lord's feasts aren't modeled by this app (a
+  # known, explicitly deferred gap), so unlike the "genuinely unwinnable
+  # stub" pattern used elsewhere (where both competitors ARE modeled and
+  # the engine can correctly show the subordination), these can't be
+  # represented without incorrectly letting them win outright. Excluded
+  # entirely rather than guessed at: Ss. Xystus/Felicissimus/Agapitus
+  # (Aug 6, under the Transfiguration), Ss. Tiburtius and Susanna (Aug
+  # 11), St. Clare (Aug 12 -- notable: a genuinely major saint, not an
+  # obscure one, caught by this same gap), Ss. Hippolytus and Cassian
+  # (Aug 13), St. Agapitus (Aug 18), Ss. Timothy/Hippolytus/Symphorian
+  # (Aug 22). Also excluded: Our Lady of the Snows (Aug 5, fixed BVM
+  # feast, same convention as Purification/Annunciation).
+  "08-01": [st-peter-ad-vincula, ss-machabees]
+  "08-02": [st-stephen-i]
+  "08-03": [finding-of-st-stephen]
+  "08-04": [st-dominic]
+  "08-07": [st-donatus]
+  "08-08": [ss-cyriacus-largus-and-smaragdus]
+  "08-09": [vigil-of-st-lawrence, st-romanus]
   "08-10": [st-lawrence]
   "08-15": [assumption]
-  "08-28": [st-augustine]
+  "08-20": [st-bernard]
+  "08-23": [vigil-of-st-bartholomew]
+  "08-24": [st-bartholomew]
+  "08-25": [st-louis]
+  "08-26": [st-zephyrinus]
+  "08-28": [st-augustine, st-hermes]
+  "08-29": [decollation-of-st-john-baptist, st-sabina]
+  "08-30": [ss-felix-and-adauctus]
   "09-08": [nativity-bvm]
   "09-29": [st-michael]
   "11-01": [all-saints]