Portal: 12-hour schedule times and dynamicAudio default on

Use TimeInput for Block start/end and show the day timeline axis with
AM/PM, so no 24-hour time is displayed in the schedule UI. New Blocks now
default dynamicAudio to true in the modal and server-side when the field
is absent; existing stored Blocks are untouched.

src/lib/server/schedule.spec.ts

@@ -90,7 +90,7 @@ describe('createBlock', () => {
 				scheduleId: 's1',
 				startMinutes: validInput.startMinutes,
 				endMinutes: validInput.endMinutes,
-				dynamicAudio: false,
+				dynamicAudio: true,
 				proclamations: {
 					create: [
 						{ proclamationId: 'p1', sortOrder: 0 },
@@ -101,6 +101,32 @@ describe('createBlock', () => {
 		});
 	});
 
+	it('defaults dynamic audio on when the field is absent', async () => {
+		blockFindMany.mockResolvedValue([]);
+		blockCreate.mockResolvedValue({ id: 'new-block' });
+
+		await createBlock('u1', validInput);
+
+		expect(blockCreate).toHaveBeenCalledWith(
+			expect.objectContaining({
+				data: expect.objectContaining({ dynamicAudio: true })
+			})
+		);
+	});
+
+	it('persists dynamic audio off when the field is explicitly false', async () => {
+		blockFindMany.mockResolvedValue([]);
+		blockCreate.mockResolvedValue({ id: 'new-block' });
+
+		await createBlock('u1', { ...validInput, dynamicAudio: false });
+
+		expect(blockCreate).toHaveBeenCalledWith(
+			expect.objectContaining({
+				data: expect.objectContaining({ dynamicAudio: false })
+			})
+		);
+	});
+
 	it('persists the dynamic audio flag', async () => {
 		blockFindMany.mockResolvedValue([]);
 		blockCreate.mockResolvedValue({ id: 'new-block' });
@@ -168,7 +194,7 @@ describe('updateBlock', () => {
 			data: {
 				startMinutes: validInput.startMinutes,
 				endMinutes: validInput.endMinutes,
-				dynamicAudio: false,
+				dynamicAudio: true,
 				proclamations: {
 					deleteMany: {},
 					create: [{ proclamationId: 'p1', sortOrder: 0 }]