propers: add June's collect and antiphon text

Real collect text for all 16 June saints that have one, plus a real
antiphon for 4 of them and a fifth (Ss. Peter and Paul) that deliberately
reuses the Chair-of-Peter-at-Antioch antiphon text, matching the source's
own cross-reference — same extraction method as prior months.

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

tests/calendar/june-sanctoral.test.ts

@@ -0,0 +1,58 @@
+import { describe, expect, it } from 'vitest';
+import { resolveDay } from '../../src/calendar';
+import { getDayCollect } from '../../src/hours/resolve-common';
+
+// Clean per-annum years for these dates (no Sunday collision, and clear of
+// the movable Corpus Christi Octave / generic Saturday-of-Mary votive that
+// usually overshadow a couple of them) — see data/calendar/saints/*.yml
+// for per-saint source detail.
+describe('June sanctoral pull (first pass)', () => {
+  it('Ss. Peter and Paul win outright at Duplex I. classis with a real proper collect and antiphon', () => {
+    const day = resolveDay('2035-06-29');
+    expect(day.winner).toEqual({
+      kind: 'sanctoral',
+      id: 'ss-peter-and-paul',
+      name: 'Ss. Peter and Paul, Apostles',
+      rank: 'duplex-1-classis',
+    });
+    expect(getDayCollect(day).status.en).toBe('verified');
+  });
+
+  it('a saint normally blocked by the generic Saturday-of-Mary votive wins independently once the date falls on another weekday', () => {
+    const day = resolveDay('2026-06-02'); // a Tuesday
+    expect(day.winner).toEqual({
+      kind: 'sanctoral',
+      id: 'ss-marcellinus-peter-and-erasmus',
+      name: 'Ss. Marcellinus, Peter, and Erasmus, Bishop, Martyrs',
+      rank: 'simplex',
+    });
+    expect(getDayCollect(day).status.en).toBe('verified');
+  });
+
+  it('three distinct Pauline feasts this pull has found all resolve as separate records', () => {
+    const conversion = resolveDay('2026-01-25');
+    const peterAndPaul = resolveDay('2035-06-29');
+    const commemoration = resolveDay('2035-06-30');
+    const ids = [conversion, peterAndPaul, commemoration].map((d) =>
+      d.winner.kind === 'sanctoral' ? d.winner.id : null,
+    );
+    expect(ids).toEqual(['conversion-of-st-paul', 'ss-peter-and-paul', 'commemoration-of-st-paul']);
+  });
+
+  it('the Nativity of St. John the Baptist wins outright at Duplex I. classis, distinct from his Vigil the day before', () => {
+    const vigil = resolveDay('2035-06-23');
+    const nativity = resolveDay('2035-06-24');
+    expect(vigil.winner).toEqual({
+      kind: 'sanctoral',
+      id: 'vigil-of-st-john-the-baptist',
+      name: 'Vigil of St. John the Baptist',
+      rank: 'vigil',
+    });
+    expect(nativity.winner).toEqual({
+      kind: 'sanctoral',
+      id: 'nativity-of-st-john-the-baptist',
+      name: 'The Nativity of St. John the Baptist',
+      rank: 'duplex-1-classis',
+    });
+  });
+});