Add July sanctoral content: 11 saints/feasts, fix St. Leo II's wrong date

Continues the full-year sanctoral import: the Most Precious Blood of Our
Lord (Duplex I Classis, full proper office, elevated by Pius XI for the
1933 Redemption jubilee), the Visitation of the BVM (Duplex II Classis,
full proper office), St. Leo II, St. Anthony Mary Zaccaria, the Octave
Day of Ss. Peter and Paul (own real content, not a bare continuation),
Ss. Cyril and Methodius, St. Elizabeth of Portugal, St. Henry, Our Lady
of Mount Carmel, St. Vincent de Paul, and St. Ignatius of Loyola.

Also fixes a real pre-existing bug surfaced while authoring St. Leo II:
an earlier June sanctoral pull had mapped him to "06-28" (his own vita
text mentions his burial "upon the 28th day of June," but his actual
liturgical feast, per the reference engine's Sancti/07-03.txt, is July
3) with no saints/st-leo-ii.yml ever authored for it -- a wrong-date
stub, same class of artifact as the pre-existing St. Apollinaris
wrong-date bug already documented in july-sanctoral.test.ts. Removed
the stale June 28 entry now that he's correctly authored on July 3.

Two day-label tests pinned to Trinity-Sunday-relative dates that now
collide with new fixed feasts (Jul 6: Octave Day of Ss. Peter and Paul)
were moved to collision-free years/dates, and the July stub test
covering "pure octave-continuation days" was updated to a date (July 4)
that's still genuinely unmapped, since most of that range turned out to
have real content after all.

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

src/data/calendar/sanctoral-calendar.yml

@@ -150,7 +150,14 @@ days:
   # two normally blocked by the generic Saturday-of-Mary votive). 06-27
   # (the 4th day of St. John the Baptist's octave) is a pure temporal
   # continuation with no named secondary saint, so it's excluded, same as
-  # every other octave-continuation day this pull has skipped.
+  # every other octave-continuation day this pull has skipped. (A
+  # "06-28": [st-leo-ii] entry from that original pull was a wrong-date
+  # artifact -- his own vita text mentions his burial "upon the 28th day
+  # of June," but his real liturgical feast day, per
+  # web/www/horas/Latin/Sancti/07-03.txt, is July 3; removed here now
+  # that he's properly authored there, same class of fix as St.
+  # Apollinaris's wrong-date artifact noted in
+  # tests/calendar/july-sanctoral.test.ts.)
   "06-01": [st-angela-merici]
   "06-02": [ss-marcellinus-peter-and-erasmus]
   "06-04": [st-francis-caracciolo]
@@ -172,22 +179,38 @@ days:
   "06-24": [nativity-of-st-john-the-baptist]
   "06-25": [st-william-abbot]
   "06-26": [ss-john-and-paul]
-  "06-28": [st-leo-ii]
   "06-29": [ss-peter-and-paul]
   "06-30": [commemoration-of-st-paul]
-  # July — 7/12 of the pre-1955 pull. 07-01 through 07-06 are all pure
-  # octave-continuation labels (St. John the Baptist's own octave, then
-  # Ss. Peter and Paul's) with no independently named saint at all, so
-  # they're excluded, same as every other octave-continuation day this
-  # pull has skipped. Five stubs this month, all genuinely unwinnable —
-  # see their own files for which fixed-date competitor blocks each.
+  # July — 7/12 of the pre-1955 pull. Five stubs this month, all
+  # genuinely unwinnable — see their own files for which fixed-date
+  # competitor blocks each. Separately, the full-year sanctoral import
+  # (see vu-sanctoral-sweep-progress memory) added 07-01 through 07-08
+  # and 07-15/07-16/07-19/07-31 — previously excluded entirely under a
+  # stale "pure octave-continuation label, no independently named
+  # saint" note, which was wrong for these dates: each has real,
+  # complete own content (the Most Precious Blood and the Visitation
+  # of the BVM are fully proper Duplex-class feasts of their own; the
+  # Octave Day of Ss. Peter and Paul, July 6, likewise has real proper
+  # content even though it's an octave day). The remaining days within
+  # those two octaves (July 4, 7, 9) genuinely are bare
+  # octave-continuation with no independent content, and stay excluded.
+  "07-01": [most-precious-blood]
+  "07-02": [visitation-of-the-bvm]
+  "07-03": [st-leo-ii]
+  "07-05": [st-anthony-mary-zaccaria]
+  "07-06": [octave-of-ss-peter-and-paul]
+  "07-07": [ss-cyril-and-methodius]
+  "07-08": [st-elizabeth-of-portugal]
   "07-10": [ss-seven-brothers-rufina-and-secunda]
   "07-11": [st-pius-i]
   "07-12": [st-john-gualbert, ss-nabor-and-felix]
   "07-13": [st-anacletus]
   "07-14": [st-bonaventure]
+  "07-15": [st-henry]
+  "07-16": [our-lady-of-mount-carmel]
   "07-17": [st-alexius]
   "07-18": [ss-symphorosa-and-seven-sons]
+  "07-19": [st-vincent-de-paul]
   "07-20": [st-margaret-of-antioch]
   "07-21": [st-praxedes]
   "07-22": [st-mary-magdalene]
@@ -199,6 +222,7 @@ 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]
+  "07-31": [st-ignatius-of-loyola]
   # 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