feat(frontend): integrate custom services across booking flow and routes

Update BookingFlow to support custom service selection, add custom_services to booking types, and link CustomServicesManagement into admin pages. Minor updates to schedules, prices, and today routes.

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

@@ -1514,10 +1514,19 @@
 					{services}
 					selected={selectedServices}
 					loading={servicesLoading}
-					ontoggle={toggleService}
+			ontoggle={toggleService}
-				/>
+			/>
 
-				{#if selectedServices.length > 0}
+			<div class="mt-4 rounded-lg border border-dashed border-gray-300 bg-gray-50 p-4 text-center">
+				<p class="text-sm text-gray-600">
+					Need something different? Select the closest service and add a note, or contact us for a bespoke treatment.
+				</p>
+				<a href="/contact" class="mt-1 inline-block text-sm font-medium text-blue-600 hover:underline">
+					Arrange a custom booking →
+				</a>
+			</div>
+
+			{#if selectedServices.length > 0}
 					<div class="rounded-lg bg-gray-50 p-4">
 						<h4 class="mb-2 font-semibold">Selected Services</h4>
 						<div class="space-y-2">

frontend/src/lib/components/today/TodayCalendar.svelte

@@ -744,7 +744,7 @@
 										{item.data.user_name}
 									</button>
 									<div class="flex flex-wrap items-center gap-x-1 text-sm text-gray-600">
-										<span class="truncate">{item.data.services.join(', ')}</span>
+										<span class="truncate">{(item.data.services ?? []).join(', ')}</span>
 										<span
 											class="shrink-0 rounded-full bg-gray-100 px-1.5 py-0.5 text-xs font-medium"
 										>

frontend/src/lib/types/booking.ts

@@ -6,10 +6,17 @@ export interface Service {
 	duration_minutes: number;
 	patch_test_duration_hours: number;
 	minimum_age_required: number;
-	// Patch test status (present when user is authenticated, not admin)
 	patch_test_status?: 'ok' | 'required' | 'expired';
 }
 
+export interface CustomService extends Service {
+	usage_count: number;
+	last_used_at: string | null;
+	notes: string | null;
+	created_at: string;
+	created_by?: string;
+}
+
 export interface CustomerInfo {
 	firstName: string;
 	lastName: string;

frontend/src/routes/admin/+page.svelte

@@ -12,6 +12,7 @@
 	import TimeBlockers from '$lib/components/admin/TimeBlockers.svelte';
 	import WeeklySchedule from '$lib/components/admin/WeeklySchedule.svelte';
 	import ServicesManagement from '$lib/components/admin/ServicesManagement.svelte';
+	import CustomServicesManagement from '$lib/components/admin/CustomServicesManagement.svelte';
 	import PatchTestsManagement from '$lib/components/admin/PatchTestsManagement.svelte';
 	import DiscountsManagement from '$lib/components/admin/DiscountsManagement.svelte';
 	import GiftCardsManagement from '$lib/components/admin/GiftCardsManagement.svelte';
@@ -300,6 +301,7 @@
 		<HolidayHours />
 		<WeeklySchedule />
 		<ServicesManagement />
+		<CustomServicesManagement />
 		<PatchTestsManagement />
 		<DiscountsManagement />
 		<GiftCardsManagement />

frontend/src/routes/admin/schedule/+page.svelte

@@ -131,7 +131,7 @@
 	}
 
 	function getServiceNames(b: ScheduleBooking): string {
-		return b.services
+		return (b.services ?? [])
 			.map((s) => s.service_name)
 			.filter(Boolean)
 			.join(', ');

frontend/src/routes/prices/+page.svelte

@@ -156,6 +156,17 @@
 			{/each}
 		</div>
 
+		<Card.Root class="border-dashed border-gray-300 bg-gray-50">
+			<Card.Content class="p-6 text-center">
+				<p class="text-sm text-gray-600">
+					Need something different? Select the closest service and add a note, or contact us for a bespoke treatment.
+				</p>
+				<a href={resolve('/contact')} class="mt-1 inline-block text-sm font-medium text-blue-600 hover:underline">
+					Arrange a custom booking →
+				</a>
+			</Card.Content>
+		</Card.Root>
+
 		<Card.Root class="border-amber-200 bg-amber-50">
 			<Card.Header>
 				<Card.Title class="flex items-center gap-2 text-amber-800">

frontend/src/routes/today/+page.svelte

@@ -135,8 +135,8 @@
 		<!-- Quick Booking + Till Purchases Grid -->
 		<div class="grid grid-cols-1 gap-4 lg:grid-cols-2 lg:gap-6">
 			<div class="space-y-4">
-				<WalkInBooking />
 				<CallInBooking />
+				<WalkInBooking />
 			</div>
 			<div>
 				<TillPurchases />