Add v2 schedule API endpoint

src/lib/server/v2-serializers.ts

@@ -1,3 +1,5 @@
+import { toHm } from '$lib/schedule-utils';
+
 // Canonical solfeggio id <- Hz, mirroring the kiosk's `frequencyIdForHz()`
 // map (radiantwave-rebuild src/audio/audio_downloader.cpp). v2 must emit these
 // canonical ids (1-9), never the portal DB autoincrement ids, because
@@ -138,3 +140,33 @@ export function serializeColorPalette(palette: {
 }): V2ColorPalette {
 	return { solfeggioFrequencyId: palette.solfeggioFrequencyId, colors: palette.colors };
 }
+
+export type V2ScheduleBlock = {
+	id: string;
+	startTime: string;
+	startMinutes: number;
+	endTime: string;
+	endMinutes: number;
+	proclamationIds: string[];
+};
+
+export type V2Schedule = {
+	email: string;
+	blocks: V2ScheduleBlock[];
+};
+
+/** Build a schedule Block for the kiosk. Only the selected Proclamation IDs are
+ * returned; the kiosk fetches proclamation content separately. */
+export function serializeScheduleBlock(
+	block: { id: string; startMinutes: number; endMinutes: number },
+	proclamationIds: string[]
+): V2ScheduleBlock {
+	return {
+		id: block.id,
+		startTime: toHm(block.startMinutes),
+		startMinutes: block.startMinutes,
+		endTime: toHm(block.endMinutes),
+		endMinutes: block.endMinutes,
+		proclamationIds
+	};
+}