calendar: model Our Lady's Saturday as a real occurrence outcome

On a free Saturday (nothing privileged already claims it, no active
octave), the day's own identity is now "Our Lady's Saturday" rather
than an anonymous ordinary-feria -- mirrors privileged-feria-minor
exactly, per direct instruction: Semiduplex-or-higher still wins
outright (Marian Saturday doesn't apply at all); below that (Simplex,
and Vigil, both under semiduplex on the FeastClass scale) loses and is
commemorated instead. Layered additively after decideOccurrence, same
shape as applyOctaves -- never touches decideOccurrence's own rules.

Needed a real winner identity (not just the plain temporal feria id)
so day-label/antiphon/collect sourcing can recognize it -- added a
temporal-feasts record purely for that, and taught getDayLabel to
check it for any named temporal winner (a small, free improvement for
Christmas/Pentecost's own labels too, previously unhandled).

hours: build the duplex-majus+ Lauds psalmody override (per-feast)

lauds-psalmody no longer unconditionally uses the plain weekday
default: a duplex-majus-or-higher sanctoral winner, or Our Lady's
Saturday (unconditional, no rank threshold -- it isn't competing with
the weekday default the way a saint is), now substitutes its own
proper psalm groups/antiphons/canticle. Per-feast, not per-Common, per
direct instruction, even though most duplex-majus+ saints across the
year don't have one authored yet and fall back to the plain weekday
default until they do.

Content for the worked example (St. Lawrence's own day) surfaced a
real bug while sourcing it: st-lawrence-antiphon.yml had been read
from the Roman/secular rite's own [Ant 1], not Monastic 1617's actual
Benedictus antiphon for that day -- corrected from a fresh live query.

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

src/hours/types.ts

@@ -89,13 +89,16 @@ export type HourPart =
   // number of antiphoned psalm groups, then a weekday-variable OT canticle,
   // then the Laudate psalms under one more shared antiphon) doesn't fit any
   // existing part kind, and hardcoding psalm numbers in lauds.yml can't
-  // work since they differ by weekday. Known, deliberate gap: does NOT
-  // model the Commune/feast override of this whole block (real practice
-  // substitutes an entirely different set of psalms+antiphons+canticle on
-  // a Semiduplex-or-higher day) — every day currently gets the plain
-  // ferial weekday distribution regardless of who wins. Fixing that is a
-  // separate, larger propers-authoring task (a full Common-of-Saints psalm
-  // set per Common), not started yet.
+  // work since they differ by weekday. A duplex-majus-or-higher sanctoral
+  // winner, or Marian Saturday, substitutes its own proper psalmody
+  // instead — see hours/lauds-psalmody-overrides.ts's
+  // getPsalmodyOverrideFor, gated by direct instruction at duplex-majus+
+  // rather than every rank real historical practice would (most saints
+  // were added in ways that override the daily psalms — not wanted here).
+  // Authored per-feast, not per-Common (explicit choice) — known,
+  // deliberate gap: most duplex-majus+ saints across the year don't have
+  // one of these authored yet and fall back to the plain weekday default
+  // until they do (same incremental-content pattern as everywhere else).
   | { kind: 'lauds-psalmody' }
   // Lauds only. The weekday-resolved chapter/short-responsory/hymn/closing
   // versicle bundle that follows the psalmody — see hours/lauds.ts and