perf(faith): warm liturgical cache + fix 1962 rendering

Pre-compute romcal year maps on server boot for current + next civil year
across en/de/la in each rite's default diocese, non-blocking so startup is
unaffected.

Also fixes several 1962-rite rendering bugs: commemorations previously
leaked 1969-shape ids (e.g. andrew_apostle) next to proper 1962 sancti;
station church names came through unresolved because RomcalConfig's
internal i18next has no bundle loaded; season names arrived as raw keys
(advent.season) for the same reason. All three now resolve locally via
the shipped 1962 bundle with Latin as fallback. ClassIV ferias get a
small dot on the grid.

src/routes/[faithLang=faithLang]/[calendar=calendarLang]/[rite=calendarRite]/[[yyyy=calendarYear]]/[[mm=calendarMonth]]/[[dd=calendarDay]]/+page.svelte

@@ -250,6 +250,17 @@
 						{/each}
 					</div>
 				{/if}
+				{#if hero.rite1962?.stationChurches?.length}
+					<div class="tc-stations">
+						<span class="tc-stations-label" aria-hidden="true">✦</span>
+						<span class="tc-stations-text">
+							<span class="tc-stations-title">{t1962('stationChurch', lang)}:</span>
+							{#each hero.rite1962.stationChurches as s, i (s.key + (s.mass ?? ''))}
+								{#if i > 0}<span class="tc-stations-sep"> · </span>{/if}<span class="tc-station-name">{s.name}</span>{#if s.mass}<span class="tc-station-mass"> ({s.mass.replace(/_/g, ' ')})</span>{/if}
+							{/each}
+						</span>
+					</div>
+				{/if}
 				<span class="tc-arrow" aria-hidden="true">→</span>
 			</section>
 		</a>
@@ -660,6 +671,37 @@
 		border: 1px solid rgba(255, 255, 255, 0.22);
 		font-size: 0.82rem;
 	}
+	.tc-stations {
+		margin-top: 0.9rem;
+		display: flex;
+		align-items: baseline;
+		gap: 0.55rem;
+		font-size: 0.85rem;
+		line-height: 1.45;
+	}
+	.tc-stations-label {
+		font-size: 0.95rem;
+		opacity: 0.7;
+		flex-shrink: 0;
+	}
+	.tc-stations-title {
+		font-weight: 600;
+		letter-spacing: 0.03em;
+		text-transform: uppercase;
+		font-size: 0.72rem;
+		opacity: 0.85;
+		margin-right: 0.35rem;
+	}
+	.tc-station-name {
+		font-style: italic;
+	}
+	.tc-station-mass {
+		opacity: 0.75;
+		font-size: 0.78rem;
+	}
+	.tc-stations-sep {
+		opacity: 0.6;
+	}
 	.tc-arrow {
 		position: absolute;
 		bottom: 1.1rem;

src/routes/[faithLang=faithLang]/[calendar=calendarLang]/[rite=calendarRite]/detail/[yyyy=calendarYear]/[mm=calendarMonth]/[dd=calendarDay]/+page.svelte

@@ -154,6 +154,21 @@
 					</ul>
 				</div>
 			{/if}
+			{#if d.stationChurches?.length}
+				<div class="stations">
+					<h4>{t1962('stationChurch', lang)}</h4>
+					<ul>
+						{#each d.stationChurches as s (s.key + (s.mass ?? ''))}
+							<li>
+								<span class="station-name">{s.name}</span>
+								{#if s.mass}
+									<span class="station-mass">{s.mass.replace(/_/g, ' ')}</span>
+								{/if}
+							</li>
+						{/each}
+					</ul>
+				</div>
+			{/if}
 			{#if d.propers.length}
 				<section class="propers">
 					<h4>{t1962('propers', lang)}</h4>
@@ -351,6 +366,7 @@
 		color: var(--color-text-primary);
 	}
 	.commems h4,
+	.stations h4,
 	.propers h4 {
 		margin: 0.5rem 0 0.4rem;
 		font-size: 0.72rem;
@@ -359,10 +375,12 @@
 		color: var(--color-text-secondary);
 		font-weight: 600;
 	}
-	.commems {
+	.commems,
+	.stations {
 		margin-top: 0.75rem;
 	}
-	.commems ul {
+	.commems ul,
+	.stations ul {
 		list-style: none;
 		padding: 0;
 		margin: 0;
@@ -370,7 +388,8 @@
 		flex-direction: column;
 		gap: 0.35rem;
 	}
-	.commems li {
+	.commems li,
+	.stations li {
 		display: flex;
 		align-items: center;
 		gap: 0.5rem;
@@ -379,10 +398,19 @@
 		border-radius: var(--radius-sm, 6px);
 		font-size: 0.85rem;
 	}
-	.commem-name {
+	.commem-name,
+	.station-name {
 		flex: 1 1 auto;
 		color: var(--color-text-primary);
 	}
+	.station-name {
+		font-style: italic;
+	}
+	.station-mass {
+		color: var(--color-text-tertiary);
+		font-size: 0.78rem;
+		text-transform: capitalize;
+	}
 
 	.propers {
 		margin-top: 1rem;

src/routes/[faithLang=faithLang]/[calendar=calendarLang]/calendarColors.ts

@@ -68,5 +68,6 @@ export function rankDotSize(rank: string): number {
 	if (rank === 'ClassII' || rank === 'FEAST' || rank === 'SUNDAY' || rank === 'HOLY_DAY_OF_OBLIGATION')
 		return 4;
 	if (rank === 'ClassIII' || rank === 'MEMORIAL') return 3;
-	return 0; // don't render ferias/weekdays as dots
+	if (rank === 'ClassIV') return 2;
+	return 0; // 1969 weekdays/opt-memorials still skipped
 }

src/routes/[faithLang=faithLang]/[calendar=calendarLang]/calendarI18n.ts

@@ -287,7 +287,8 @@ export const ui1962 = {
 	vigilOf: { en: 'Vigil of', de: 'Vigil von', la: 'Vigilia' },
 	transferredFrom: { en: 'Transferred from', de: 'Übertragen von', la: 'Translatum ex' },
 	source: { en: 'Source', de: 'Quelle', la: 'Fons' },
-	propers: { en: 'Mass propers', de: 'Messproprium', la: 'Propria Missæ' }
+	propers: { en: 'Mass propers', de: 'Messproprium', la: 'Propria Missæ' },
+	stationChurch: { en: 'Station church', de: 'Stationskirche', la: 'Statio' }
 } as const;
 
 export function t1962(key: keyof typeof ui1962, lang: CalendarLang): string {