style: format multi-line expressions in BookingFlow.svelte

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

frontend/src/lib/components/booking/BookingFlow.svelte

@@ -682,10 +682,16 @@
 		loadingAvailableHours = true;
 
 		try {
-			const authHeaders: RequestInit['headers'] = authStore.currentToken ? { Authorization: `Bearer ${authStore.currentToken}` } : undefined;
+			const authHeaders: RequestInit['headers'] = authStore.currentToken
+				? { Authorization: `Bearer ${authStore.currentToken}` }
+				: undefined;
 			const [whRes, ahRes] = await Promise.all([
-				fetch(`/api/scheduling/working-hours?start=${startStr}&end=${endStr}`, { headers: authHeaders }),
-				fetch(`/api/scheduling/available-hours?start=${startStr}&end=${endStr}`, { headers: authHeaders })
+				fetch(`/api/scheduling/working-hours?start=${startStr}&end=${endStr}`, {
+					headers: authHeaders
+				}),
+				fetch(`/api/scheduling/available-hours?start=${startStr}&end=${endStr}`, {
+					headers: authHeaders
+				})
 			]);
 			if (!whRes.ok || !ahRes.ok) {
 				throw new Error(`HTTP error! wh: ${whRes.status}, ah: ${ahRes.status}`);
@@ -776,7 +782,9 @@
 			const startStr = startOfMonth.toString();
 			const endStr = endOfMonth.toString();
 
-			const authHeaders: RequestInit['headers'] = authStore.currentToken ? { Authorization: `Bearer ${authStore.currentToken}` } : undefined;
+			const authHeaders: RequestInit['headers'] = authStore.currentToken
+				? { Authorization: `Bearer ${authStore.currentToken}` }
+				: undefined;
 
 			// Fetch working hours
 			const workingHoursResponse = await fetch(
@@ -1298,7 +1306,9 @@
 
 		// Step 2 -> Step 3: Check if we already hold a valid reservation for this exact slot
 		if (currentStep === 2) {
-			const sameSlot = _reservationId && !reservationExpired &&
+			const sameSlot =
+				_reservationId &&
+				!reservationExpired &&
 				_reservedSlotTime === selectedTime &&
 				_reservedSlotDate === (selectedDate ? selectedDate.toString() : null);
 
@@ -1311,7 +1321,9 @@
 					try {
 						const res = await fetch('/api/bookings/reserve', {
 							method: 'DELETE',
-							headers: authStore.currentToken ? { Authorization: `Bearer ${authStore.currentToken}` } : {}
+							headers: authStore.currentToken
+								? { Authorization: `Bearer ${authStore.currentToken}` }
+								: {}
 						});
 						if (!res.ok) console.warn('Failed to release old reservation', res.status);
 					} catch (e) {