Add Ember-day mechanism (privileged feria, not a rank contest) + real content

Researched whether September/Advent Ember days belong in the
movable-feasts.ts table alongside Christ the King/Immaculate Heart of
Mary. Live-verified against the reference engine they don't: Ember days
are privileged ferias (a saint can still win outright against them), not
named feasts contesting the day by rank.

Two smaller pieces instead: calendar/temporal.ts's septemberEmberDayOffset
(Sunday nearest Sept 14, same "nearest" arithmetic adventStart already
used, factored into a shared nearestSunday helper) feeds a new
resolveTemporalCategory check giving those 3 dates privileged-feria-minor
(live-verified correct); calendar/ember-days.ts's applyEmberDay relabels
the day's own temporal id to the Ember day's own (so its real content is
found) when the feria itself wins, or adds a commemoration when a saint
does. Advent Ember days needed no precedence change -- Advent's own
season default already covers them.

Found and fixed a real bug along the way: matins.ts's nocturnReadingIds
only ever pulled a commemorated *sanctoral* id's own readings, never a
commemorated *temporal* one's -- so a commemorated Ember day (the common
case) would never have surfaced its own content. Same root cause as the
day.winner.id gap the IHM relocation fixed earlier, just hiding in the
commemorations loop instead.

Authored all 6 days' real collect + 3 Matins readings each, transcribed
directly from the reference engine (September: Tempora/093-{3,5,6}.txt;
Advent: Tempora/Adv3-{3,5,6}.txt, whose lessons are themselves a
cross-reference to the Annunciation's own Common, followed and
transcribed from there). Kept as 3 separate readings per day rather than
the usual combine-into-one default, since each carries its own
genuinely distinct proper responsory.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VZSAgRi4QE4XRTqVto93zA

src/data/propers/temporal/ember-advent-friday-collect.yml

@@ -0,0 +1,19 @@
+# Read directly from web/www/horas/Latin/Tempora/Adv3-5.txt's own [Oratio]
+# and its English counterpart. Standard "Qui vivis..." closing spelled
+# out in full (the source abbreviates it), matching the closing formula
+# already used in other collects in this store.
+id: ember-advent-friday-collect
+text:
+  la: |
+    Orémus.
+    Excita, quǽsumus, Dómine, poténtiam tuam, et veni: ut hi, qui in tua pietáte confídunt, ab omni cítius adversitáte liberéntur.
+    Qui vivis et regnas cum Deo Patre in unitáte Spíritus Sancti, Deus, per ómnia sǽcula sæculórum.
+    R. Amen.
+  en: |
+    Let us pray.
+    Stir up, O Lord, we pray thee, thy might, and come among us; that we, trusting only in thy mercy, may by thee be speedily delivered from all adversity.
+    Who livest and reignest with God the Father, in the unity of the Holy Ghost, God, world without end.
+    R. Amen.
+status:
+  la: verified
+  en: verified

src/data/propers/temporal/ember-advent-saturday-collect.yml

@@ -0,0 +1,19 @@
+# Read directly from web/www/horas/Latin/Tempora/Adv3-6.txt's own [Oratio]
+# and its English counterpart. Standard "Qui vivis..." closing spelled
+# out in full (the source abbreviates it), matching ember-advent-friday-
+# collect.yml's own closing.
+id: ember-advent-saturday-collect
+text:
+  la: |
+    Orémus.
+    Deus, qui cónspicis, quia ex nostra pravitáte afflígimur: concéde propítius; ut ex tua visitatióne consolémur.
+    Qui vivis et regnas cum Deo Patre in unitáte Spíritus Sancti, Deus, per ómnia sǽcula sæculórum.
+    R. Amen.
+  en: |
+    Let us pray.
+    O God, Who seest that by reason of our sins we are sorely afflicted, mercifully grant unto us by thy visitation effectually to be comforted.
+    Who livest and reignest with God the Father, in the unity of the Holy Ghost, God, world without end.
+    R. Amen.
+status:
+  la: verified
+  en: verified

src/data/propers/temporal/ember-advent-wednesday-collect.yml

@@ -0,0 +1,19 @@
+# Read directly from web/www/horas/Latin/Tempora/Adv3-3.txt's own [Oratio]
+# and its English counterpart. Standard "Per Dóminum..." closing spelled
+# out in full (the source abbreviates it), matching every other collect
+# in this store.
+id: ember-advent-wednesday-collect
+text:
+  la: |
+    Orémus.
+    Præsta, quǽsumus, omnípotens Deus: ut redemptiónis nostræ ventúra solémnitas et præséntis nobis vitæ subsídia cónferat, et ætérnæ beatitúdinis prǽmia largiátur.
+    Per Dóminum nostrum Jesum Christum, Fílium tuum: qui tecum vivit et regnat in unitáte Spíritus Sancti, Deus, per ómnia sǽcula sæculórum.
+    R. Amen.
+  en: |
+    Let us pray.
+    Grant, we beseech thee, Almighty God, that the solemn Feast of our redemption, which is now at hand, may both help us in the life which now is, and further us toward the attaining of thine eternal joy in that which is to come.
+    Through Jesus Christ, thy Son our Lord, Who liveth and reigneth with thee, in the unity of the Holy Ghost, God, world without end.
+    R. Amen.
+status:
+  la: verified
+  en: verified

src/data/propers/temporal/ember-september-friday-collect.yml

@@ -0,0 +1,19 @@
+# Read directly from web/www/horas/Latin/Tempora/093-5.txt's own [Oratio]
+# and its English counterpart. Standard "Per Dóminum..." closing spelled
+# out in full (the source abbreviates it), matching every other collect
+# in this store.
+id: ember-september-friday-collect
+text:
+  la: |
+    Orémus.
+    Præsta, quǽsumus, omnípotens Deus: ut observatiónes sacras ánnua devotióne recoléntes, et córpore tibi placeámus, et mente.
+    Per Dóminum nostrum Jesum Christum, Fílium tuum: qui tecum vivit et regnat in unitáte Spíritus Sancti, Deus, per ómnia sǽcula sæculórum.
+    R. Amen.
+  en: |
+    Let us pray.
+    Grant, we beseech thee, O Almighty God, that we who every year do earnestly renew the sacred observance of this Fast, may please thee both in body and in soul.
+    Through Jesus Christ, thy Son our Lord, Who liveth and reigneth with thee, in the unity of the Holy Ghost, God, world without end.
+    R. Amen.
+status:
+  la: verified
+  en: verified

src/data/propers/temporal/ember-september-saturday-collect.yml

@@ -0,0 +1,19 @@
+# Read directly from web/www/horas/Latin/Tempora/093-6.txt's own [Oratio]
+# and its English counterpart. Standard "Per Dóminum..." closing spelled
+# out in full (the source abbreviates it), matching every other collect
+# in this store.
+id: ember-september-saturday-collect
+text:
+  la: |
+    Orémus.
+    Omnípotens sempitérne Deus, qui per continéntiam salutárem corpóribus medéris et méntibus: majestátem tuam súpplices exorámus; ut pia jejunántium deprecatióne placátus, et præséntia nobis subsídia tríbuas, et futúra.
+    Per Dóminum nostrum Jesum Christum, Fílium tuum: qui tecum vivit et regnat in unitáte Spíritus Sancti, Deus, per ómnia sǽcula sæculórum.
+    R. Amen.
+  en: |
+    Let us pray.
+    O God, Who hast chosen healthy fasting, as a mean to do good both to bodies and to souls, we humbly implore thy Majesty, that the godly prayer of such as be fasting this day may turn away thy wrath, and may be effectual to gain for us thy blessing in time and in eternity.
+    Through Jesus Christ, thy Son our Lord, Who liveth and reigneth with thee, in the unity of the Holy Ghost, God, world without end.
+    R. Amen.
+status:
+  la: verified
+  en: verified

src/data/propers/temporal/ember-september-wednesday-collect.yml

@@ -0,0 +1,19 @@
+# Read directly from web/www/horas/Latin/Tempora/093-3.txt's own [Oratio]
+# and its English counterpart. Standard "Per Dóminum..." closing spelled
+# out in full (the source abbreviates it), matching every other collect
+# in this store.
+id: ember-september-wednesday-collect
+text:
+  la: |
+    Orémus.
+    Misericórdiæ tuæ remédiis, quǽsumus, Dómine, fragílitas nostra subsístat: ut, quæ sua conditióne attéritur, tua cleméntia reparétur.
+    Per Dóminum nostrum Jesum Christum, Fílium tuum: qui tecum vivit et regnat in unitáte Spíritus Sancti, Deus, per ómnia sǽcula sæculórum.
+    R. Amen.
+  en: |
+    Let us pray.
+    We pray thee, O Lord, that the healing power of thy mercy may give strength to our weakness, that those things which do pass away by their own frailty, may be renewed again by thy clemency.
+    Through Jesus Christ, thy Son our Lord, Who liveth and reigneth with thee, in the unity of the Holy Ghost, God, world without end.
+    R. Amen.
+status:
+  la: verified
+  en: verified