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>

src/data/propers/common/ss-basilides-cyrinus-nabor-and-nazarius-collect.yml

@@ -0,0 +1,18 @@
+# Verified against Divinum Officium (Monastic Tridentinum 1617) — read
+# directly from the reference engine's own real-date output (2035-06-12).
+# Same convention as data/propers/temporal/*-collect.yml.
+id: ss-basilides-cyrinus-nabor-and-nazarius-collect
+text:
+  la: |
+    Orémus.
+    Sanctórum Mártyrum tuórum Basílidis, Cyríni, Náboris atque Nazárii, quǽsumus, Dómine, natalítia nobis votíva respléndeant: et, quod illis cóntulit excelléntia sempitérna, frúctibus nostræ devotiónis accréscat.
+    Per Dóminum nostrum Jesum Christum, Fílium tuum: qui tecum vivit et regnat in unitáte Spíritus Sancti, Deus, per ómnia sǽcula sæculórum.
+    ℟. Amen.
+  en: |
+    Let us pray.
+    Lighten over us, O Lord, we beseech thee, this solemn Birthday-keeping for thine own holy martyrs, Basilides, Cyrinus, Nabor, and Nazarius, and grant that the same love of thee which hath brought them for ever and ever, such things as exceed all that we can either ask or think, may grow up in us also by the fruits of our earnest petition.
+    Through Jesus Christ, thy Son our Lord, Who liveth and reigneth with thee, in the unity of the Holy Ghost, God, world without end.
+    ℟. Amen.
+status:
+  la: verified
+  en: verified