feat(faith): add liturgical calendar with 1969/1962 rite toggle

Adds `/faith/calendar`, `/glaube/kalender`, `/fides/calendarium` route backed by
romcal v3 + @romcal/calendar.general-roman with native EN/DE/LA locales. Month
grid, today hero, and day detail panel use liturgical colors from the rubric.

Header gets a segmented 1969/1962 pill toggle; selecting 1962 shows a WIP
placeholder (Tridentine calendar data not yet wired up).

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "homepage",
-	"version": "1.31.4",
+	"version": "1.32.0",
 	"private": true,
 	"type": "module",
 	"scripts": {
@@ -49,6 +49,7 @@
 		"@huggingface/transformers": "^4.0.1",
 		"@lucide/svelte": "^1.7.0",
 		"@nicolo-ribaudo/chokidar-2": "2.1.8-no-fsevents.3",
+		"@romcal/calendar.general-roman": "3.0.0-dev.125",
 		"@sveltejs/adapter-node": "^5.5.4",
 		"@tauri-apps/plugin-geolocation": "^2.3.2",
 		"barcode-detector": "^3.1.2",
@@ -59,6 +60,7 @@
 		"leaflet": "^1.9.4",
 		"mongoose": "^9.4.1",
 		"node-cron": "^4.2.1",
+		"romcal": "3.0.0-dev.125",
 		"sharp": "^0.34.5",
 		"web-haptics": "^0.0.6"
 	},