diff --git a/frontend/src/lib/components/admin/ApprovalModal.svelte b/frontend/src/lib/components/admin/ApprovalModal.svelte
index df7ae3f..147a93b 100644
--- a/frontend/src/lib/components/admin/ApprovalModal.svelte
+++ b/frontend/src/lib/components/admin/ApprovalModal.svelte
@@ -150,7 +150,7 @@
 				const data = await response.json();
 				overlappingBookings = data.bookings || [];
 			}
-		} catch (_err) {
+		} catch {
 			// Silently handle - overlapping bookings couldn't be fetched
 		} finally {
 			loadingOverlaps = false;
@@ -337,7 +337,7 @@
 				const text = await response.text();
 				toast.error('Failed to confirm: ' + sanitizeText(text), { id: loadingToast });
 			}
-		} catch (_err) {
+		} catch {
 			toast.error('Network error confirming booking', { id: loadingToast });
 		} finally {
 			submitting = false;
@@ -365,7 +365,7 @@
 				const text = await response.text();
 				toast.error('Failed to decline: ' + sanitizeText(text), { id: loadingToast });
 			}
-		} catch (_err) {
+		} catch {
 			toast.error('Network error declining booking', { id: loadingToast });
 		} finally {
 			submitting = false;
diff --git a/frontend/src/lib/components/admin/BookingCreateModal.svelte b/frontend/src/lib/components/admin/BookingCreateModal.svelte
index dff63b3..53c2fd3 100644
--- a/frontend/src/lib/components/admin/BookingCreateModal.svelte
+++ b/frontend/src/lib/components/admin/BookingCreateModal.svelte
@@ -181,7 +181,6 @@
 	let selectedTime = $state<string | null>(null);
 	let workingHours = $state<Record<string, DayHours> | null>(null);
 	let availableHours = $state<Record<string, DayAvailability> | null>(null);
-	let _loadingWorkingHours = $state(false);
 	let loadingAvailableHours = $state(false);
 	let hoursRangeGeneration = $state(0);
 	let hoursMonthGeneration = $state(0);
@@ -485,7 +484,7 @@
 					(user: { account_role: string }) => !excludedRoles.includes(user.account_role)
 				);
 			}
-		} catch (_err) {
+		} catch {
 			toast.error('Failed to load users');
 		} finally {
 			loadingUsers = false;
@@ -504,7 +503,7 @@
 			if (response.ok) {
 				services = await response.json();
 			}
-		} catch (_err) {
+		} catch {
 			toast.error('Failed to load services');
 		} finally {
 			loadingServices = false;
@@ -528,7 +527,6 @@
 		hoursRangeGeneration++;
 		const gen = hoursRangeGeneration;
 
-		_loadingWorkingHours = true;
 		loadingAvailableHours = true;
 
 		try {
@@ -572,10 +570,9 @@
 				workingHours = { ...workingHours, ...whMap };
 				availableHours = { ...availableHours, ...ahMap };
 			}
-		} catch (_err) {
+					} catch {
 			toast.error('Failed to load availability');
 		} finally {
-			_loadingWorkingHours = false;
 			loadingAvailableHours = false;
 		}
 	}
@@ -597,7 +594,6 @@
 		hoursMonthGeneration++;
 		const gen = hoursMonthGeneration;
 
-		_loadingWorkingHours = true;
 		loadingAvailableHours = true;
 
 		try {
@@ -636,10 +632,9 @@
 				workingHours = { ...workingHours, ...whMap };
 				availableHours = { ...availableHours, ...ahMap };
 			}
-		} catch (_err) {
+		} catch {
 			toast.error('Failed to load availability');
 		} finally {
-			_loadingWorkingHours = false;
 			loadingAvailableHours = false;
 			loadingMonthKeys = new SvelteSet([...loadingMonthKeys].filter((k) => k !== monthKey));
 		}
@@ -725,7 +720,7 @@
 				toast.error(`Failed to reserve slot: ${errorText}`);
 				return false;
 			}
-		} catch (_err) {
+		} catch {
 			toast.error('Failed to reserve slot');
 			return false;
 		} finally {
@@ -1020,7 +1015,7 @@
 				const errorText = await res.text();
 				toast.error(`Failed to create booking: ${errorText}`);
 			}
-		} catch (_err) {
+		} catch {
 			toast.error('An error occurred while creating booking');
 		} finally {
 			submitting = false;
@@ -1148,8 +1143,10 @@
 							<div class="max-h-[300px] overflow-y-auto rounded-md border border-gray-200">
 								{#if loadingUsers}
 									<div class="space-y-2 p-2">
-										{#each Array(3) as _, i (i)}
+										{#each Array(3) as __, i (i)}
+					{__}
 											<Skeleton class="h-10 w-full" />
+											{__}
 										{/each}
 									</div>
 								{:else if users.length === 0}
@@ -1260,8 +1257,10 @@
 					<Card.Content class="space-y-4">
 						{#if loadingServices}
 							<div class="grid grid-cols-1 gap-4 md:grid-cols-2">
-								{#each Array(4) as _, i (i)}
+								{#each Array(4) as __, i (i)}
+					{__}
 									<Skeleton class="h-28 w-full" />
+									{__}
 								{/each}
 							</div>
 						{:else if services.length === 0}
@@ -1291,10 +1290,12 @@
 									/>
 									<Button variant="outline" size="sm" onclick={fetchCustomServices}>Search</Button>
 								</div>
-								{#if loadingCustomServices}
+									{#if loadingCustomServices}
 									<div class="space-y-2">
-										{#each Array(3) as _, i (i)}
+										{#each Array(3) as __, i (i)}
+					{__}
 											<Skeleton class="h-10 w-full" />
+											{__}
 										{/each}
 									</div>
 								{:else if customServices.length > 0}
diff --git a/frontend/src/lib/components/admin/BookingModal.svelte b/frontend/src/lib/components/admin/BookingModal.svelte
index b435077..0c24115 100644
--- a/frontend/src/lib/components/admin/BookingModal.svelte
+++ b/frontend/src/lib/components/admin/BookingModal.svelte
@@ -86,7 +86,7 @@
 				const text = await response.text();
 				toast.error('Failed to cancel: ' + text);
 			}
-		} catch (_err) {
+		} catch {
 			toast.error('Network error');
 		} finally {
 			cancelling = false;
diff --git a/frontend/src/lib/components/admin/BusinessSettings.svelte b/frontend/src/lib/components/admin/BusinessSettings.svelte
index 7cf26ba..cf11305 100644
--- a/frontend/src/lib/components/admin/BusinessSettings.svelte
+++ b/frontend/src/lib/components/admin/BusinessSettings.svelte
@@ -286,7 +286,8 @@
 	<Card.Content>
 		{#if loading}
 			<div class="space-y-4">
-				{#each Array(3) as _, i (i)}
+				{#each Array(3) as __, i (i)}
+					{__}
 					<div class="space-y-2">
 						<Skeleton class="h-4 w-32" />
 						<Skeleton class="h-5 w-full" />
diff --git a/frontend/src/lib/components/admin/CustomServicesManagement.svelte b/frontend/src/lib/components/admin/CustomServicesManagement.svelte
index dd05fee..83ea4e4 100644
--- a/frontend/src/lib/components/admin/CustomServicesManagement.svelte
+++ b/frontend/src/lib/components/admin/CustomServicesManagement.svelte
@@ -283,7 +283,8 @@
 
 		{#if loading}
 			<div class="space-y-3">
-				{#each Array(3) as _, i (i)}
+				{#each Array(3) as __, i (i)}
+					{__}
 					<Skeleton class="h-12 w-full" />
 				{/each}
 			</div>
diff --git a/frontend/src/lib/components/admin/DiscountsManagement.svelte b/frontend/src/lib/components/admin/DiscountsManagement.svelte
index 803795f..69bfc39 100644
--- a/frontend/src/lib/components/admin/DiscountsManagement.svelte
+++ b/frontend/src/lib/components/admin/DiscountsManagement.svelte
@@ -275,7 +275,8 @@
 	<Card.Content>
 		{#if loading}
 			<div class="space-y-3">
-				{#each Array(3) as _, i (i)}
+				{#each Array(3) as __, i (i)}
+					{__}
 					<Skeleton class="h-16 w-full" />
 				{/each}
 			</div>
diff --git a/frontend/src/lib/components/admin/GiftCardsManagement.svelte b/frontend/src/lib/components/admin/GiftCardsManagement.svelte
index 6e29259..663ed4b 100644
--- a/frontend/src/lib/components/admin/GiftCardsManagement.svelte
+++ b/frontend/src/lib/components/admin/GiftCardsManagement.svelte
@@ -49,7 +49,6 @@
 	let cardQuery = $state('');
 	let cards = $state<GiftCard[]>([]);
 	let balances = $state<UserBalance[]>([]);
-	let _totalCards = $state(0);
 	let totalBalanceRecords = $state(0);
 	let currentPage = $state(1);
 	let totalPages = $state(1);
@@ -138,18 +137,12 @@
 	// Page 3: Recipient email input
 	let generateEmail = $state('');
 
-	let _tillGuestEmail = $state<string | undefined>(undefined);
-
 	// Payment Processing States
 	let cashAmount = $state('');
-	let _cashTendered = $state(0);
-	let _extraAsTip = $state(false);
 
 	let ephemeralCardNumber = $state('');
 	let ephemeralCardExpiry = $state('');
 	let ephemeralCardCVC = $state('');
-	let _ephemeralCardError = $state('');
-
 	let paymentError = $state('');
 	let paymentResult = $state<{
 		id: string;
@@ -158,7 +151,6 @@
 		status?: string;
 	} | null>(null);
 	let cardMachineItemID = $state<string | null>(null);
-	let _checkoutId = $state<string | null>(null);
 	let processingMessage = $state('Processing payment...');
 
 	// Idempotency Key
@@ -242,14 +234,6 @@
 		transferAmount && !transferAmountError && transferToCode && !transferCodeError
 	);
 
-	// TillPayment state
-	const _showTillPayment = $state(false);
-	const _tillAmount = $state(0);
-	const _tillAction = $state<'create' | 'topup'>('create');
-	const _tillGiftCardId = $state<string | undefined>(undefined);
-	const _tillUserId = $state<string | undefined>(undefined);
-	const _tillDelivery = $state<'account' | 'code'>('code');
-
 	async function fetchGiftCards(page: number = 1, search: string = '') {
 		loading = true;
 		loadingSearch = true;
@@ -267,14 +251,13 @@
 				summary.total_user_balances = data.total_user_balances;
 				cards = data.gift_cards;
 				balances = data.user_balances;
-				_totalCards = data.total;
-				totalBalanceRecords = data.ub_total ?? data.user_balances?.length ?? 0;
+			totalBalanceRecords = data.ub_total ?? data.user_balances?.length ?? 0;
 				currentPage = data.page;
 				totalPages = data.totalPages;
 			} else {
 				toast.error('Failed to fetch gift cards');
 			}
-		} catch (_err) {
+		} catch {
 			toast.error('Network error fetching gift cards');
 		} finally {
 			loading = false;
@@ -297,7 +280,7 @@
 			} else {
 				toast.error('Failed to fetch expired balances');
 			}
-		} catch (_err) {
+		} catch {
 			toast.error('Network error fetching expired balances');
 		} finally {
 			loadingExpired = false;
@@ -321,7 +304,7 @@
 				const err = await res.json();
 				toast.error(err.error || 'Failed to claim balance');
 			}
-		} catch (_err) {
+		} catch {
 			toast.error('Network error claiming balance');
 		} finally {
 			claimingId = null;
@@ -415,7 +398,7 @@
 				const errText = await res.text();
 				toast.error(errText || 'Failed to create inventory card');
 			}
-		} catch (_err) {
+		} catch {
 			toast.error('Network error');
 		} finally {
 			creating = false;
@@ -457,7 +440,7 @@
 				const errText = await res.text();
 				toast.error(errText || 'Failed to transfer balance');
 			}
-		} catch (_err) {
+		} catch {
 			toast.error('Network error transferring balance');
 		} finally {
 			transferring = false;
@@ -475,7 +458,6 @@
 		generateEmail = '';
 		generateUserQuery = '';
 		generateUsers = [];
-		_tillGuestEmail = undefined;
 	}
 
 	function resetTopUpModal() {
@@ -485,16 +467,12 @@
 
 		// Reset payment
 		cashAmount = '';
-		_cashTendered = 0;
-		_extraAsTip = false;
 		ephemeralCardNumber = '';
 		ephemeralCardExpiry = '';
 		ephemeralCardCVC = '';
-		_ephemeralCardError = '';
 		paymentError = '';
 		paymentResult = null;
 		cardMachineItemID = null;
-		_checkoutId = null;
 		idempotencyKey = '';
 	}
 
@@ -607,7 +585,6 @@
 				const data = await res.json();
 				cardMachineItemID = data.item_id || null;
 				if (data.status === 'pending' && data.checkout_id) {
-					_checkoutId = data.checkout_id;
 					setModalStep(actionType, 'processing');
 					pollEmbeddedCheckout(data.checkout_id, amt, actionType);
 				} else {
@@ -1276,14 +1253,12 @@
 					</thead>
 					<tbody>
 						{#if loading}
-							{#each Array(3) as _, i (i)}
 								<tr class="border-b">
 									<td class="py-3"><Skeleton class="h-4 w-36" /></td>
 									<td class="py-3"><Skeleton class="h-4 w-44" /></td>
 									<td class="py-3"><Skeleton class="h-4 w-16" /></td>
 									<td class="py-3"><Skeleton class="h-4 w-24" /></td>
 								</tr>
-							{/each}
 						{:else if balances.length === 0}
 							<tr>
 								<td colspan="4" class="py-8 text-center text-gray-500">
@@ -1309,7 +1284,8 @@
 			<!-- Mobile view - Balances -->
 			<div class="grid gap-4 md:hidden">
 				{#if loading}
-					{#each Array(2) as _, i (i)}
+					{#each Array(2) as __, i (i)}
+					{__}
 						<div class="space-y-3 rounded-lg border p-4">
 							<Skeleton class="h-4 w-36" />
 							<Skeleton class="h-4 w-full" />
@@ -1361,7 +1337,6 @@
 					</thead>
 					<tbody>
 						{#if loadingExpired}
-							{#each Array(3) as _, i (i)}
 								<tr class="border-b">
 									<td class="py-3"><Skeleton class="h-4 w-32" /></td>
 									<td class="py-3"><Skeleton class="h-4 w-16" /></td>
@@ -1369,7 +1344,21 @@
 									<td class="py-3"><Skeleton class="h-4 w-20" /></td>
 									<td class="py-3 text-center"><Skeleton class="mx-auto h-4 w-24" /></td>
 								</tr>
-							{/each}
+								<tr class="border-b">
+									<td class="py-3"><Skeleton class="h-4 w-32" /></td>
+									<td class="py-3"><Skeleton class="h-4 w-16" /></td>
+									<td class="py-3"><Skeleton class="h-4 w-24" /></td>
+									<td class="py-3"><Skeleton class="h-4 w-20" /></td>
+									<td class="py-3 text-center"><Skeleton class="mx-auto h-4 w-24" /></td>
+								</tr>
+								<tr class="border-b">
+									<td class="py-3"><Skeleton class="h-4 w-32" /></td>
+									<td class="py-3"><Skeleton class="h-4 w-16" /></td>
+									<td class="py-3"><Skeleton class="h-4 w-24" /></td>
+									<td class="py-3"><Skeleton class="h-4 w-20" /></td>
+									<td class="py-3 text-center"><Skeleton class="mx-auto h-4 w-24" /></td>
+								</tr>
+
 						{:else if expiredBalances.length === 0}
 							<tr>
 								<td colspan="5" class="py-8 text-center text-gray-500">
@@ -1424,7 +1413,8 @@
 			<!-- Mobile view - Expired Balances -->
 			<div class="grid gap-4 md:hidden">
 				{#if loadingExpired}
-					{#each Array(2) as _, i (i)}
+					{#each Array(2) as __, i (i)}
+					{__}
 						<div class="space-y-3 rounded-lg border p-4">
 							<Skeleton class="h-4 w-36" />
 							<Skeleton class="h-4 w-full" />
diff --git a/frontend/src/lib/components/admin/HolidayHours.svelte b/frontend/src/lib/components/admin/HolidayHours.svelte
index 0e8891d..da2c1f5 100644
--- a/frontend/src/lib/components/admin/HolidayHours.svelte
+++ b/frontend/src/lib/components/admin/HolidayHours.svelte
@@ -342,7 +342,8 @@
 	<Card.Content class="space-y-4">
 		{#if exceptionGroupsLoading}
 			<div class="grid grid-cols-1 gap-4 md:grid-cols-2">
-				{#each Array(2) as _, i (i)}
+				{#each Array(2) as __, i (i)}
+					{__}
 					<Skeleton class="h-32 w-full" />
 				{/each}
 			</div>
@@ -567,7 +568,7 @@
 											disabled={!row.is_open}
 											class="flex h-9 w-24 rounded-md border border-input bg-background px-2 py-1 text-sm shadow-xs ring-offset-background transition-[color,box-shadow] outline-none focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 disabled:cursor-not-allowed disabled:opacity-50"
 										>
-											{#each Array(24) as _, hour (hour)}
+											{#each Array.from({ length: 24 }, (_, hour) => hour) as hour (hour)}
 												{#each TIME15 as min (min)}
 													<option value="{String(hour).padStart(2, '0')}:{min}"
 														>{String(hour).padStart(2, '0')}:{min}</option
@@ -582,7 +583,7 @@
 											disabled={!row.is_open}
 											class="flex h-9 w-24 rounded-md border border-input bg-background px-2 py-1 text-sm shadow-xs ring-offset-background transition-[color,box-shadow] outline-none focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 disabled:cursor-not-allowed disabled:opacity-50"
 										>
-											{#each Array(24) as _, hour (hour)}
+											{#each Array.from({ length: 24 }, (_, hour) => hour) as hour (hour)}
 												{#each TIME15 as min (min)}
 													<option value="{String(hour).padStart(2, '0')}:{min}"
 														>{String(hour).padStart(2, '0')}:{min}</option
diff --git a/frontend/src/lib/components/admin/ImageUpload.svelte b/frontend/src/lib/components/admin/ImageUpload.svelte
index 812bd6a..d5f5136 100644
--- a/frontend/src/lib/components/admin/ImageUpload.svelte
+++ b/frontend/src/lib/components/admin/ImageUpload.svelte
@@ -361,7 +361,6 @@
 	}
 
 	let availableTags = $state<string[]>([]);
-	let _loadingTags = $state(true);
 	let isMobile = $state(false);
 
 	async function fetchTags() {
@@ -373,8 +372,6 @@
 			}
 		} catch (e) {
 			console.error('Failed to fetch tags:', e);
-		} finally {
-			_loadingTags = false;
 		}
 	}
 
diff --git a/frontend/src/lib/components/admin/PatchTestsManagement.svelte b/frontend/src/lib/components/admin/PatchTestsManagement.svelte
index 519246b..78c4a61 100644
--- a/frontend/src/lib/components/admin/PatchTestsManagement.svelte
+++ b/frontend/src/lib/components/admin/PatchTestsManagement.svelte
@@ -297,7 +297,6 @@
 				</thead>
 				<tbody>
 					{#if loading}
-						{#each Array(2) as _, i (i)}
 							<tr class="border-b">
 								<td class="py-3"><Skeleton class="h-4 w-32" /></td>
 								<td class="py-3"><Skeleton class="h-4 w-48" /></td>
@@ -310,7 +309,19 @@
 									</div>
 								</td>
 							</tr>
-						{/each}
+							<tr class="border-b">
+								<td class="py-3"><Skeleton class="h-4 w-32" /></td>
+								<td class="py-3"><Skeleton class="h-4 w-48" /></td>
+								<td class="py-3"><Skeleton class="mx-auto h-4 w-12" /></td>
+								<td class="py-3"><Skeleton class="mx-auto h-4 w-12" /></td>
+								<td class="py-3 text-center">
+									<div class="flex justify-center gap-2">
+										<Skeleton class="h-8 w-16" />
+										<Skeleton class="h-8 w-16" />
+									</div>
+								</td>
+							</tr>
+
 					{:else}
 						{#each patchTests as pt (pt.id)}
 							<tr class="border-b hover:bg-gray-50">
@@ -346,7 +357,8 @@
 
 		<div class="space-y-4 md:hidden">
 			{#if loading}
-				{#each Array(2) as _, i (i)}
+				{#each Array(2) as __, i (i)}
+					{__}
 					<div class="space-y-3 rounded-lg border p-4">
 						<Skeleton class="h-5 w-32" />
 						<Skeleton class="h-4 w-48" />
diff --git a/frontend/src/lib/components/admin/ServicesManagement.svelte b/frontend/src/lib/components/admin/ServicesManagement.svelte
index 467fcfb..8246cf5 100644
--- a/frontend/src/lib/components/admin/ServicesManagement.svelte
+++ b/frontend/src/lib/components/admin/ServicesManagement.svelte
@@ -366,7 +366,6 @@
 				</thead>
 				<tbody>
 					{#if servicesLoading}
-						{#each Array(3) as _, i (i)}
 							<tr class="border-b">
 								<td class="py-3"><Skeleton class="h-4 w-32" /></td>
 								<td class="py-3"><Skeleton class="h-4 w-48" /></td>
@@ -380,7 +379,33 @@
 									</div>
 								</td>
 							</tr>
-						{/each}
+							<tr class="border-b">
+								<td class="py-3"><Skeleton class="h-4 w-32" /></td>
+								<td class="py-3"><Skeleton class="h-4 w-48" /></td>
+								<td class="py-3 text-right"><Skeleton class="ml-auto h-4 w-16" /></td>
+								<td class="py-3 text-right"><Skeleton class="ml-auto h-4 w-20" /></td>
+								<td class="py-3 text-center"><Skeleton class="mx-auto h-4 w-16" /></td>
+								<td class="py-3 text-center">
+									<div class="flex justify-center gap-2">
+										<Skeleton class="h-8 w-16" />
+										<Skeleton class="h-8 w-16" />
+									</div>
+								</td>
+							</tr>
+							<tr class="border-b">
+								<td class="py-3"><Skeleton class="h-4 w-32" /></td>
+								<td class="py-3"><Skeleton class="h-4 w-48" /></td>
+								<td class="py-3 text-right"><Skeleton class="ml-auto h-4 w-16" /></td>
+								<td class="py-3 text-right"><Skeleton class="ml-auto h-4 w-20" /></td>
+								<td class="py-3 text-center"><Skeleton class="mx-auto h-4 w-16" /></td>
+								<td class="py-3 text-center">
+									<div class="flex justify-center gap-2">
+										<Skeleton class="h-8 w-16" />
+										<Skeleton class="h-8 w-16" />
+									</div>
+								</td>
+							</tr>
+
 					{:else}
 						{#each services as service (service.id)}
 							<tr class="border-b hover:bg-gray-50">
@@ -438,7 +463,8 @@
 
 		<div class="space-y-4 md:hidden">
 			{#if servicesLoading}
-				{#each Array(3) as _, i (i)}
+				{#each Array(3) as __, i (i)}
+					{__}
 					<div class="rounded-lg border p-4">
 						<div class="space-y-3">
 							<Skeleton class="h-5 w-32" />
diff --git a/frontend/src/lib/components/admin/TimeBlockers.svelte b/frontend/src/lib/components/admin/TimeBlockers.svelte
index f552b2b..5c569e5 100644
--- a/frontend/src/lib/components/admin/TimeBlockers.svelte
+++ b/frontend/src/lib/components/admin/TimeBlockers.svelte
@@ -552,7 +552,8 @@
 	<Card.Content class="space-y-4">
 		{#if loading}
 			<div class="space-y-3">
-				{#each Array(3) as _, i (i)}
+				{#each Array(3) as __, i (i)}
+					{__}
 					<Skeleton class="h-16 w-full" />
 				{/each}
 			</div>
@@ -665,7 +666,8 @@
 						>
 							Prev
 						</Button>
-						{#each Array(totalPages) as _, i (i)}
+						{#each Array(totalPages) as __, i (i)}
+					{__}
 							<Button
 								variant={currentPage === i + 1 ? 'default' : 'outline'}
 								size="sm"
diff --git a/frontend/src/lib/components/admin/UserModal.svelte b/frontend/src/lib/components/admin/UserModal.svelte
index 25a2470..5812613 100644
--- a/frontend/src/lib/components/admin/UserModal.svelte
+++ b/frontend/src/lib/components/admin/UserModal.svelte
@@ -507,7 +507,8 @@
 							Customer Relationship
 						</h3>
 						<div class="space-y-2">
-							{#each Array(5) as _, i (i)}
+							{#each Array(5) as __, i (i)}
+					{__}
 								<div class="h-10 animate-pulse rounded-md bg-gray-200"></div>
 							{/each}
 						</div>
diff --git a/frontend/src/lib/components/admin/UsersCard.svelte b/frontend/src/lib/components/admin/UsersCard.svelte
index 940ca31..3860f18 100644
--- a/frontend/src/lib/components/admin/UsersCard.svelte
+++ b/frontend/src/lib/components/admin/UsersCard.svelte
@@ -176,7 +176,8 @@
 
 			<div class="mt-3 max-h-60 space-y-2 overflow-y-auto">
 				{#if initialLoad}
-					{#each Array(3) as _, i (i)}
+					{#each Array(3) as __, i (i)}
+					{__}
 						<div class="rounded bg-gray-50 p-2">
 							<Skeleton class="mb-1 h-4 w-32" />
 							<Skeleton class="h-3 w-48" />
diff --git a/frontend/src/lib/components/admin/WalkInBooking.svelte b/frontend/src/lib/components/admin/WalkInBooking.svelte
index 9af94e4..395d934 100644
--- a/frontend/src/lib/components/admin/WalkInBooking.svelte
+++ b/frontend/src/lib/components/admin/WalkInBooking.svelte
@@ -31,7 +31,6 @@
 
 	let _reservationId = $state<string | null>(null);
 	let reservationExpiresAt = $state<Date | null>(null);
-	let _reservationCountdown = $state<string>('');
 	let isReserving = $state(false);
 	let reservedDuration = $state(0);
 	let reservedStartTime = $state<string | null>(null);
@@ -48,7 +47,7 @@
 					shortestServiceMinutes = Math.min(...durations);
 				}
 			}
-		} catch (_err) {
+		} catch {
 			// Silently handled - services list remains empty
 		}
 	}
@@ -82,7 +81,6 @@
 		// Clear local state first so a slow DELETE doesn't block the UI.
 		_reservationId = null;
 		reservationExpiresAt = null;
-		_reservationCountdown = '';
 		reservedDuration = 0;
 		reservedStartTime = null;
 		if (window.__walkInCountdownInterval) {
@@ -209,7 +207,7 @@
 			const dayEndTimeVal = minutesToTime(dayEndMinutesVal);
 
 			if (shouldApplyLunchProtection(dayStartTimeVal, dayEndTimeVal)) {
-				const { windowStart, windowEnd: _windowEnd } = calculateMiddleWindow(
+				const { windowStart } = calculateMiddleWindow(
 					dayStartTimeVal,
 					dayEndTimeVal
 				);
@@ -330,7 +328,6 @@
 
 		const updateCountdown = () => {
 			if (!reservationExpiresAt) {
-				_reservationCountdown = '';
 				return;
 			}
 
@@ -338,7 +335,6 @@
 			const diff = reservationExpiresAt.getTime() - now.getTime();
 
 			if (diff <= 0) {
-				_reservationCountdown = 'Expired';
 				_reservationId = null;
 				reservationExpiresAt = null;
 				toast.error('Slot released — please re-check availability');
@@ -348,10 +344,6 @@
 				showCreateModal = false;
 				return;
 			}
-
-			const minutes = Math.floor(diff / 60000);
-			const seconds = Math.floor((diff % 60000) / 1000);
-			_reservationCountdown = `${minutes}:${seconds.toString().padStart(2, '0')}`;
 		};
 
 		updateCountdown();
diff --git a/frontend/src/lib/components/admin/WalkInCreateModal.svelte b/frontend/src/lib/components/admin/WalkInCreateModal.svelte
index f0078f9..62a269c 100644
--- a/frontend/src/lib/components/admin/WalkInCreateModal.svelte
+++ b/frontend/src/lib/components/admin/WalkInCreateModal.svelte
@@ -32,7 +32,6 @@
 		availableStartTime?: string;
 		reservationExpiresAt?: Date | null;
 		onBookingCreated?: () => void;
-		_onclose?: () => void;
 	}
 
 	let {
@@ -41,7 +40,6 @@
 		availableStartTime,
 		reservationExpiresAt,
 		onBookingCreated,
-		_onclose
 	}: Props = $props();
 
 	// =============== State ===============
@@ -313,7 +311,7 @@
 			if (response.ok) {
 				services = await response.json();
 			}
-		} catch (_err) {
+		} catch {
 			toast.error('Failed to load services');
 		} finally {
 			loadingServices = false;
@@ -558,7 +556,7 @@
 				const errorText = await res.text();
 				toast.error(`Failed to create booking: ${errorText}`);
 			}
-		} catch (_err) {
+		} catch {
 			toast.error('An error occurred while creating booking');
 		} finally {
 			submitting = false;
@@ -723,7 +721,8 @@
 							<div class="max-h-[300px] overflow-y-auto rounded-md border border-gray-200">
 								{#if loadingUsers}
 									<div class="space-y-2 p-2">
-										{#each Array(3) as _, i (i)}
+										{#each Array(3) as __, i (i)}
+					{__}
 											<Skeleton class="h-10 w-full" />
 										{/each}
 									</div>
@@ -836,7 +835,8 @@
 					<Card.Content class="space-y-4">
 						{#if loadingServices}
 							<div class="grid grid-cols-1 gap-4 md:grid-cols-2">
-								{#each Array(4) as _, i (i)}
+								{#each Array(4) as __, i (i)}
+					{__}
 									<Skeleton class="h-28 w-full" />
 								{/each}
 							</div>
@@ -869,7 +869,8 @@
 								</div>
 								{#if loadingCustomServices}
 									<div class="space-y-2">
-										{#each Array(3) as _, i (i)}
+										{#each Array(3) as __, i (i)}
+					{__}
 											<Skeleton class="h-10 w-full" />
 										{/each}
 									</div>
diff --git a/frontend/src/lib/components/admin/WeeklySchedule.svelte b/frontend/src/lib/components/admin/WeeklySchedule.svelte
index 1b95cb1..39233de 100644
--- a/frontend/src/lib/components/admin/WeeklySchedule.svelte
+++ b/frontend/src/lib/components/admin/WeeklySchedule.svelte
@@ -423,7 +423,6 @@
 						</tr>
 					</thead>
 					<tbody class="divide-y divide-gray-200">
-						{#each Array(7) as _, i (i)}
 							<tr>
 								<td class="px-4 py-4">
 									<div class="flex items-center gap-2">
@@ -444,14 +443,135 @@
 									<Skeleton class="ml-auto h-4 w-12" />
 								</td>
 							</tr>
-						{/each}
+							<tr>
+								<td class="px-4 py-4">
+									<div class="flex items-center gap-2">
+										<Skeleton class="h-8 w-8 rounded-full" />
+										<Skeleton class="h-4 w-20" />
+									</div>
+								</td>
+								<td class="px-4 py-4 text-center">
+									<Skeleton class="mx-auto h-6 w-16 rounded-full" />
+								</td>
+								<td class="px-4 py-4">
+									<Skeleton class="h-4 w-20" />
+								</td>
+								<td class="px-4 py-4">
+									<Skeleton class="h-4 w-20" />
+								</td>
+								<td class="px-4 py-4 text-right">
+									<Skeleton class="ml-auto h-4 w-12" />
+								</td>
+							</tr>
+							<tr>
+								<td class="px-4 py-4">
+									<div class="flex items-center gap-2">
+										<Skeleton class="h-8 w-8 rounded-full" />
+										<Skeleton class="h-4 w-20" />
+									</div>
+								</td>
+								<td class="px-4 py-4 text-center">
+									<Skeleton class="mx-auto h-6 w-16 rounded-full" />
+								</td>
+								<td class="px-4 py-4">
+									<Skeleton class="h-4 w-20" />
+								</td>
+								<td class="px-4 py-4">
+									<Skeleton class="h-4 w-20" />
+								</td>
+								<td class="px-4 py-4 text-right">
+									<Skeleton class="ml-auto h-4 w-12" />
+								</td>
+							</tr>
+							<tr>
+								<td class="px-4 py-4">
+									<div class="flex items-center gap-2">
+										<Skeleton class="h-8 w-8 rounded-full" />
+										<Skeleton class="h-4 w-20" />
+									</div>
+								</td>
+								<td class="px-4 py-4 text-center">
+									<Skeleton class="mx-auto h-6 w-16 rounded-full" />
+								</td>
+								<td class="px-4 py-4">
+									<Skeleton class="h-4 w-20" />
+								</td>
+								<td class="px-4 py-4">
+									<Skeleton class="h-4 w-20" />
+								</td>
+								<td class="px-4 py-4 text-right">
+									<Skeleton class="ml-auto h-4 w-12" />
+								</td>
+							</tr>
+							<tr>
+								<td class="px-4 py-4">
+									<div class="flex items-center gap-2">
+										<Skeleton class="h-8 w-8 rounded-full" />
+										<Skeleton class="h-4 w-20" />
+									</div>
+								</td>
+								<td class="px-4 py-4 text-center">
+									<Skeleton class="mx-auto h-6 w-16 rounded-full" />
+								</td>
+								<td class="px-4 py-4">
+									<Skeleton class="h-4 w-20" />
+								</td>
+								<td class="px-4 py-4">
+									<Skeleton class="h-4 w-20" />
+								</td>
+								<td class="px-4 py-4 text-right">
+									<Skeleton class="ml-auto h-4 w-12" />
+								</td>
+							</tr>
+							<tr>
+								<td class="px-4 py-4">
+									<div class="flex items-center gap-2">
+										<Skeleton class="h-8 w-8 rounded-full" />
+										<Skeleton class="h-4 w-20" />
+									</div>
+								</td>
+								<td class="px-4 py-4 text-center">
+									<Skeleton class="mx-auto h-6 w-16 rounded-full" />
+								</td>
+								<td class="px-4 py-4">
+									<Skeleton class="h-4 w-20" />
+								</td>
+								<td class="px-4 py-4">
+									<Skeleton class="h-4 w-20" />
+								</td>
+								<td class="px-4 py-4 text-right">
+									<Skeleton class="ml-auto h-4 w-12" />
+								</td>
+							</tr>
+							<tr>
+								<td class="px-4 py-4">
+									<div class="flex items-center gap-2">
+										<Skeleton class="h-8 w-8 rounded-full" />
+										<Skeleton class="h-4 w-20" />
+									</div>
+								</td>
+								<td class="px-4 py-4 text-center">
+									<Skeleton class="mx-auto h-6 w-16 rounded-full" />
+								</td>
+								<td class="px-4 py-4">
+									<Skeleton class="h-4 w-20" />
+								</td>
+								<td class="px-4 py-4">
+									<Skeleton class="h-4 w-20" />
+								</td>
+								<td class="px-4 py-4 text-right">
+									<Skeleton class="ml-auto h-4 w-12" />
+								</td>
+							</tr>
+
 					</tbody>
 				</table>
 			</div>
 
 			<!-- Mobile Skeleton -->
 			<div class="space-y-3 md:hidden">
-				{#each Array(7) as _, i (i)}
+				{#each Array(7) as __, i (i)}
+					{__}
 					<div class="rounded-lg border p-4">
 						<div class="mb-3 flex items-center justify-between">
 							<div class="flex items-center gap-2">
@@ -500,34 +620,34 @@
 									<Checkbox bind:checked={row.is_open} />
 								</td>
 								<td class="py-2">
-									<select
-										bind:value={row.start_time}
-										disabled={!row.is_open}
-										class="flex h-9 max-w-[70px] rounded-md border border-input bg-background px-2 py-1 text-sm shadow-xs ring-offset-background transition-[color,box-shadow] outline-none focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 disabled:cursor-not-allowed disabled:opacity-50"
-									>
-										{#each Array(24) as _, hour (hour)}
-											{#each TIME15 as min (min)}
-												<option value="{String(hour).padStart(2, '0')}:{min}"
-													>{String(hour).padStart(2, '0')}:{min}</option
-												>
+										<select
+											bind:value={row.start_time}
+											disabled={!row.is_open}
+											class="flex h-9 max-w-[70px] rounded-md border border-input bg-background px-2 py-1 text-sm shadow-xs ring-offset-background transition-[color,box-shadow] outline-none focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 disabled:cursor-not-allowed disabled:opacity-50"
+										>
+											{#each Array.from({ length: 24 }, (_, hour) => hour) as hour (hour)}
+												{#each TIME15 as min (min)}
+													<option value="{String(hour).padStart(2, '0')}:{min}"
+														>{String(hour).padStart(2, '0')}:{min}</option
+													>
+												{/each}
 											{/each}
-										{/each}
-									</select>
+										</select>
 								</td>
 								<td class="py-2">
-									<select
-										bind:value={row.end_time}
-										disabled={!row.is_open}
-										class="flex h-9 max-w-[70px] rounded-md border border-input bg-background px-2 py-1 text-sm shadow-xs ring-offset-background transition-[color,box-shadow] outline-none focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 disabled:cursor-not-allowed disabled:opacity-50"
-									>
-										{#each Array(24) as _, hour (hour)}
-											{#each TIME15 as min (min)}
-												<option value="{String(hour).padStart(2, '0')}:{min}"
-													>{String(hour).padStart(2, '0')}:{min}</option
-												>
+										<select
+											bind:value={row.end_time}
+											disabled={!row.is_open}
+											class="flex h-9 max-w-[70px] rounded-md border border-input bg-background px-2 py-1 text-sm shadow-xs ring-offset-background transition-[color,box-shadow] outline-none focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 disabled:cursor-not-allowed disabled:opacity-50"
+										>
+											{#each Array.from({ length: 24 }, (_, hour) => hour) as hour (hour)}
+												{#each TIME15 as min (min)}
+													<option value="{String(hour).padStart(2, '0')}:{min}"
+														>{String(hour).padStart(2, '0')}:{min}</option
+													>
+												{/each}
 											{/each}
-										{/each}
-									</select>
+										</select>
 								</td>
 							</tr>
 						{/each}
diff --git a/frontend/src/lib/components/booking/BookingFlow.svelte b/frontend/src/lib/components/booking/BookingFlow.svelte
index bbae9c9..672723b 100644
--- a/frontend/src/lib/components/booking/BookingFlow.svelte
+++ b/frontend/src/lib/components/booking/BookingFlow.svelte
@@ -76,13 +76,11 @@
 		phone: '',
 		specialRequests: ''
 	});
-	let _isSubmitting = $state(false);
 	let idempotencyKey = $state<string>('');
 
 	// =============== Payment State ===============
 	let userDepositsRequired = $state<number>(0);
 	let hasActiveBooking = $state<boolean>(false);
-	let _activeBookingCheckDone = $state<boolean>(false);
 	let paymentMethods = $state<
 		Array<{ id: string; brand: string; last4: string; expiry_month: number; expiry_year: number }>
 	>([]);
@@ -100,11 +98,8 @@
 	let newCardNumber = $state('');
 	let newCardExpiry = $state('');
 	let newCardCVC = $state('');
-	const _saveCardForFuture = $state(false);
-
 	// Payment flow state
 	let depositPaid = $state(false);
-	let _showPaymentForm = $state(false);
 
 	const depositCardFormValid = $derived(
 		selectedPaymentMethod !== null ||
@@ -213,7 +208,7 @@
 				const user = await response.json();
 				userDepositsRequired = user.deposits_required ?? 0;
 			}
-		} catch (_err) {
+		} catch {
 			userDepositsRequired = 0;
 		}
 	}
@@ -221,20 +216,18 @@
 	async function fetchActiveBookingStatus() {
 		if (!authStore.isAuthenticated) {
 			hasActiveBooking = false;
-			_activeBookingCheckDone = true;
 			return;
 		}
 
-		_activeBookingCheckDone = false;
+		
 		try {
 			// Check for pending bookings
 			const pendingResp = await apiFetch('/api/bookings?status=pending&perPage=1');
 			if (pendingResp.ok) {
 				const data = await pendingResp.json();
 				if (data.bookings && data.bookings.length > 0) {
-					hasActiveBooking = true;
-					_activeBookingCheckDone = true;
-					return;
+				hasActiveBooking = true;
+				return;
 				}
 			}
 
@@ -244,10 +237,8 @@
 				const data = await confirmedResp.json();
 				hasActiveBooking = data.bookings && data.bookings.length > 0;
 			}
-		} catch (_err) {
+		} catch {
 			hasActiveBooking = false;
-		} finally {
-			_activeBookingCheckDone = true;
 		}
 	}
 
@@ -338,7 +329,7 @@
 				const text = await response.text();
 				toast.warning(text || 'Payment failed — you can pay again from your booking details.');
 			}
-		} catch (_err) {
+		} catch {
 			toast.error(
 				'An error occurred. Your booking may still be confirmed — check your appointments.'
 			);
@@ -367,15 +358,12 @@
 	let reservationExpiresAt = $state<Date | null>(null);
 	let reservationCountdown = $state<string>('');
 	let reservationExpired = $state(false);
-	let _isReserving = $state(false);
-
 	// Track the reserved slot so we can detect changes on back-navigate in nextStep()
 	let _reservedSlotTime: string | null = $state(null);
 	let _reservedSlotDate: string | null = $state(null);
 
 	// =============== Slot Reservation Functions ===============
 	async function reserveSlot() {
-		_isReserving = true;
 		try {
 			if (!selectedDate || !selectedTime) {
 				toast.error('Please select a date and time');
@@ -398,7 +386,6 @@
 			});
 
 			if (!response.ok) {
-				const _errorText = await response.text();
 				if (response.status === 429) {
 					toast.error('Too many active reservations. Please wait or log in.');
 				} else if (response.status === 409) {
@@ -418,11 +405,9 @@
 			_reservedSlotDate = selectedDate ? selectedDate.toString() : null;
 			startCountdown();
 			return true;
-		} catch (_error) {
+		} catch {
 			toast.error('Network error while reserving slot.');
 			return false;
-		} finally {
-			_isReserving = false;
 		}
 	}
 
@@ -542,7 +527,7 @@
 			} else {
 				toast.error('Failed to load services');
 			}
-		} catch (_err) {
+		} catch {
 			toast.error('Network error loading services');
 		} finally {
 			servicesLoading = false;
@@ -752,7 +737,7 @@
 			// MERGE instead of replace — preserves data from previously loaded months
 			workingHours = { ...workingHours, ...whMap };
 			availableHours = { ...availableHours, ...ahMap };
-		} catch (_error) {
+		} catch {
 			// Clean up loadingMonths for the range
 			for (let i = 0; i < months; i++) {
 				let mYear = startDate.year;
@@ -852,7 +837,7 @@
 
 			availableHoursCache[monthKey] = availableHoursMap;
 			availableHours = { ...availableHours, ...availableHoursMap };
-		} catch (_error) {
+		} catch {
 			if (!selectedDate) {
 				selectedDate = minDate;
 			}
@@ -1393,7 +1378,6 @@
 	}
 
 	async function submitAndProceed() {
-		_isSubmitting = true;
 		try {
 			// Always generate a fresh idempotency key per submission attempt. The
 			// previous behavior kept the key across the component lifetime, which
@@ -1404,7 +1388,6 @@
 
 			if (!selectedDate || !selectedTime) {
 				toast.error('Please select a date and time');
-				_isSubmitting = false;
 				return;
 			}
 
@@ -1429,13 +1412,11 @@
 				});
 
 				if (!guestResponse.ok) {
-					const _errorText = await guestResponse.text();
 					if (guestResponse.status === 409) {
 						toast.error('Email already registered — please log in to book.');
 					} else {
 						toast.error('Failed to create guest account. Please try again.');
 					}
-					_isSubmitting = false;
 					return;
 				}
 
@@ -1528,10 +1509,8 @@
 					toast.error('Failed to submit booking: ' + errorMessage);
 				}
 			}
-		} catch (_error) {
+		} catch {
 			toast.error('Network error. Please check your connection and try again.');
-		} finally {
-			_isSubmitting = false;
 		}
 	}
 
@@ -1585,7 +1564,6 @@
 					)) &&
 			!reservationExpired
 	);
-	const _canProceedStep4 = $derived(true);
 </script>
 
 <div class="mx-auto max-w-4xl p-6">
diff --git a/frontend/src/lib/components/payments/PaymentModal.svelte b/frontend/src/lib/components/payments/PaymentModal.svelte
index 2911554..7a7b89b 100644
--- a/frontend/src/lib/components/payments/PaymentModal.svelte
+++ b/frontend/src/lib/components/payments/PaymentModal.svelte
@@ -62,7 +62,6 @@
 	);
 
 	let customerBalance = $state(0);
-	let _loadingCustomerBalance = $state(false);
 	let giftCardPaymentAmount = $state('');
 	let savedCardList = $state<
 		Array<{
@@ -73,13 +72,10 @@
 			cardholder_name?: string;
 		}>
 	>([]);
-	let _loadingSavedCardList = $state(false);
-
 	async function fetchCustomerGiftCardBalance() {
 		const targetUserId = booking.user_id ?? booking.user?.id;
 		if (!targetUserId) return;
-		_loadingCustomerBalance = true;
-		try {
+			try {
 			const res = await apiFetch(`/api/admin/users/${targetUserId}/giftcard-balance`);
 			if (res.ok) {
 				const data = await res.json();
@@ -91,15 +87,12 @@
 			}
 		} catch {
 			// ignore
-		} finally {
-			_loadingCustomerBalance = false;
 		}
 	}
 
 	async function fetchSavedCardList() {
 		const targetUserId = booking.user_id ?? booking.user?.id;
 		if (!targetUserId) return;
-		_loadingSavedCardList = true;
 		try {
 			const res = await apiFetch(`/api/admin/users/${targetUserId}/payment-methods`);
 			if (res.ok) {
@@ -107,8 +100,6 @@
 			}
 		} catch {
 			// ignore
-		} finally {
-			_loadingSavedCardList = false;
 		}
 	}
 
@@ -330,7 +321,7 @@
 					error = data.error_message || 'Payment failed';
 					toast.error(error as string);
 				}
-			} catch (_err) {
+			} catch {
 				stopPolling();
 				status = 'error';
 				error = 'Failed to check payment status';
diff --git a/frontend/src/lib/components/payments/UserPaymentModal.svelte b/frontend/src/lib/components/payments/UserPaymentModal.svelte
index 1a7ec6a..87e99c1 100644
--- a/frontend/src/lib/components/payments/UserPaymentModal.svelte
+++ b/frontend/src/lib/components/payments/UserPaymentModal.svelte
@@ -61,76 +61,7 @@
 	let newCardCVC = $state('');
 	let saveCardForFuture = $state(false);
 
-	function formatAndPreserveCursor(
-		input: HTMLInputElement,
-		formatter: (val: string) => string,
-		charRegex: RegExp = /\d/
-	): string {
-		const rawValue = input.value;
-		const oldSelectionStart = input.selectionStart || 0;
 
-		let charsBeforeCursor = 0;
-		for (let i = 0; i < oldSelectionStart; i++) {
-			if (charRegex.test(rawValue[i])) {
-				charsBeforeCursor++;
-			}
-		}
-
-		const formatted = formatter(rawValue);
-		input.value = formatted;
-
-		let newSelectionStart = 0;
-		let charsFound = 0;
-		for (let i = 0; i < formatted.length; i++) {
-			if (charsFound === charsBeforeCursor) {
-				break;
-			}
-			if (charRegex.test(formatted[i])) {
-				charsFound++;
-			}
-			newSelectionStart++;
-		}
-
-		requestAnimationFrame(() => {
-			input.setSelectionRange(newSelectionStart, newSelectionStart);
-		});
-
-		return formatted;
-	}
-
-	function formatCardNumber(value: string): string {
-		const digits = value.replace(/\D/g, '').substring(0, 16);
-		const groups = digits.match(/.{1,4}/g);
-		return groups ? groups.join(' ') : digits;
-	}
-
-	function _handleCardNumberInput(e: Event) {
-		const input = e.target as HTMLInputElement;
-		const formatted = formatAndPreserveCursor(input, formatCardNumber);
-		newCardNumber = formatted;
-	}
-
-	function formatExpiryDate(value: string): string {
-		const digits = value.replace(/\D/g, '').substring(0, 4);
-		if (digits.length >= 3) {
-			return digits.substring(0, 2) + '/' + digits.substring(2);
-		}
-		return digits;
-	}
-
-	function _handleExpiryInput(e: Event) {
-		const input = e.target as HTMLInputElement;
-		const formatted = formatAndPreserveCursor(input, formatExpiryDate);
-		newCardExpiry = formatted;
-	}
-
-	function _handleCvcInput(e: Event) {
-		const input = e.target as HTMLInputElement;
-		const formatted = formatAndPreserveCursor(input, (val) =>
-			val.replace(/\D/g, '').substring(0, 4)
-		);
-		newCardCVC = formatted;
-	}
 
 	function parseExpiryParts(value: string): { month: number; year: number } | null {
 		if (!/^\d{2}\/\d{2}$/.test(value)) return null;
@@ -310,16 +241,6 @@
 			(booking.status === 'pending_release' && (lockTimer <= 0 || !lockAcquired))
 	);
 
-	const _payButtonError = $derived(
-		status === 'processing'
-			? null
-			: !cardSelected
-				? cardValidationError
-				: paymentType === 'partial'
-					? partialValidationError
-					: null
-	);
-
 	function campaignDiscountCents(): number {
 		return discountPreview?.eligible
 			? discountPreview.discounts.reduce((sum, d) => sum + Math.round(d.amount * 100), 0)
diff --git a/frontend/src/lib/components/today/CurrentAppointment.svelte b/frontend/src/lib/components/today/CurrentAppointment.svelte
index 71f2121..7a7902e 100644
--- a/frontend/src/lib/components/today/CurrentAppointment.svelte
+++ b/frontend/src/lib/components/today/CurrentAppointment.svelte
@@ -13,12 +13,11 @@
 	import type { Booking as BookingType } from '$lib/types/booking';
 
 	interface Props {
-		_openBookingModal: (bookingId: string) => void;
 		openEditBookingModal: (bookingId: string, nextAppointmentStart?: string | null) => void;
 		openUserModal: (userId: string) => void;
 	}
 
-	const { _openBookingModal, openEditBookingModal, openUserModal }: Props = $props();
+	const { openEditBookingModal, openUserModal }: Props = $props();
 
 	type Booking = {
 		id: string;
@@ -270,7 +269,7 @@
 		showPaymentModal = true;
 	}
 
-	function handlePaymentComplete(_payment: unknown) {
+	function handlePaymentComplete() {
 		toast.success('Payment completed');
 		showPaymentModal = false;
 	}
diff --git a/frontend/src/lib/components/today/PendingApprovals.svelte b/frontend/src/lib/components/today/PendingApprovals.svelte
index 349beb7..e53ef17 100644
--- a/frontend/src/lib/components/today/PendingApprovals.svelte
+++ b/frontend/src/lib/components/today/PendingApprovals.svelte
@@ -312,7 +312,8 @@
 	<Card.Content>
 		{#if loading}
 			<div class="space-y-3">
-				{#each Array(3) as _, i (i)}
+				{#each Array(3) as __, i (i)}
+					{__}
 					<div class="rounded-lg border p-3">
 						<div class="flex items-start justify-between">
 							<div class="flex-1 space-y-2">
diff --git a/frontend/src/lib/components/today/TodayCalendar.svelte b/frontend/src/lib/components/today/TodayCalendar.svelte
index f2d2b7c..df94494 100644
--- a/frontend/src/lib/components/today/TodayCalendar.svelte
+++ b/frontend/src/lib/components/today/TodayCalendar.svelte
@@ -687,7 +687,8 @@
 		<Card.Content>
 			{#if loading}
 				<div class="space-y-3">
-					{#each Array(5) as _, i (i)}
+					{#each Array(5) as __, i (i)}
+					{__}
 						<div class="flex items-center gap-3 rounded-lg border p-3 sm:gap-4">
 							<Skeleton class="h-4 w-[45px] sm:w-[60px] lg:w-[80px]" />
 							<Skeleton class="h-10 w-1 shrink-0" />
diff --git a/frontend/src/lib/components/today/TodayStats.svelte b/frontend/src/lib/components/today/TodayStats.svelte
index 48edb85..6f5a8a3 100644
--- a/frontend/src/lib/components/today/TodayStats.svelte
+++ b/frontend/src/lib/components/today/TodayStats.svelte
@@ -210,7 +210,8 @@
 	<Card.Content>
 		{#if loading && !stats}
 			<div class="space-y-3">
-				{#each Array(6) as _, i (i)}
+				{#each Array(6) as __, i (i)}
+					{__}
 					<Skeleton class="h-5 w-full" />
 				{/each}
 			</div>
diff --git a/frontend/src/lib/components/ui/phone-input/PhoneInput.svelte b/frontend/src/lib/components/ui/phone-input/PhoneInput.svelte
index 9dc148f..c6f909f 100644
--- a/frontend/src/lib/components/ui/phone-input/PhoneInput.svelte
+++ b/frontend/src/lib/components/ui/phone-input/PhoneInput.svelte
@@ -6,7 +6,6 @@
 		value?: string;
 		error?: string;
 		placeholder?: string;
-		_required?: boolean;
 		disabled?: boolean;
 		class?: string;
 		id?: string;
@@ -18,7 +17,6 @@
 		value = $bindable(''),
 		error = $bindable(''),
 		placeholder = '07123 456789 or +44 7123 456789',
-		_required = false,
 		disabled = false,
 		class: className = '',
 		id = 'phone',
@@ -29,7 +27,6 @@
 	let touched = $state(false);
 
 	function handleKeyDown(e: KeyboardEvent) {
-		const _target = e.target as HTMLInputElement;
 		const allowedKeys = [
 			'Backspace',
 			'Delete',
diff --git a/frontend/src/routes/account/+page.svelte b/frontend/src/routes/account/+page.svelte
index efdf487..5703f56 100644
--- a/frontend/src/routes/account/+page.svelte
+++ b/frontend/src/routes/account/+page.svelte
@@ -1284,7 +1284,8 @@
 		</div>
 		<Card.Root>
 			<Card.Content class="space-y-4 pt-6">
-				{#each Array(5) as _, i (i)}
+				{#each Array(5) as __, i (i)}
+					{__}
 					<Skeleton class="h-12 w-full" />
 				{/each}
 			</Card.Content>
@@ -1306,7 +1307,7 @@
 					'general'
 						? 'bg-white text-gray-900 shadow-sm'
 						: 'text-gray-600 hover:text-gray-900'}"
-					onclick={(_) => (activeTab = 'general')}
+					onclick={() => (activeTab = 'general')}
 				>
 					<svg
 						class="mx-auto mb-1 h-4 w-4"
@@ -1326,7 +1327,7 @@
 						'history'
 							? 'bg-white text-gray-900 shadow-sm'
 							: 'text-gray-600 hover:text-gray-900'}"
-						onclick={(_) => (activeTab = 'history')}
+						onclick={() => (activeTab = 'history')}
 					>
 						<svg
 							class="mx-auto mb-1 h-4 w-4"
@@ -1349,7 +1350,7 @@
 						'referral'
 							? 'bg-white text-gray-900 shadow-sm'
 							: 'text-gray-600 hover:text-gray-900'}"
-						onclick={(_) => (activeTab = 'referral')}
+						onclick={() => (activeTab = 'referral')}
 					>
 						<svg
 							class="mx-auto mb-1 h-4 w-4"
@@ -1372,7 +1373,7 @@
 						'cards'
 							? 'bg-white text-gray-900 shadow-sm'
 							: 'text-gray-600 hover:text-gray-900'}"
-						onclick={(_) => {
+						onclick={() => {
 							activeTab = 'cards';
 							savedCardsStore.fetch();
 							savedCardsStore.invalidate();
@@ -1397,7 +1398,7 @@
 					'admin'
 						? 'bg-white text-gray-900 shadow-sm'
 						: 'text-gray-600 hover:text-gray-900'}"
-					onclick={(_) => (activeTab = 'admin')}
+					onclick={() => (activeTab = 'admin')}
 				>
 					<svg
 						class="mx-auto mb-1 h-4 w-4"
@@ -1517,7 +1518,8 @@
 						</Dialog.Root>
 
 						{#if loadingUser}
-							{#each Array(6) as _, i (i)}
+							{#each Array(6) as __, i (i)}
+					{__}
 								<Skeleton class="h-12 w-full" />
 							{/each}
 						{:else if userData}
@@ -1716,7 +1718,8 @@
 										</div>
 
 										<div class="grid grid-cols-5 gap-3 sm:grid-cols-10">
-											{#each Array(10) as _, i (i)}
+											{#each Array(10) as __, i (i)}
+					{__}
 												{@const slotNum = i + 1}
 												{@const rot = ((slotNum * 37 + 13) % 7) - 3}
 												{#if slotNum <= (stamps > 0 ? stamps % 10 || 10 : 0)}
@@ -1789,7 +1792,8 @@
 						</Card.Header>
 						<Card.Content class="space-y-2">
 							{#if loadingUpcoming}
-								{#each Array(3) as _, i (i)}
+								{#each Array(3) as __, i (i)}
+					{__}
 									<Skeleton class="h-16 w-full" />
 								{/each}
 							{:else}
@@ -1843,7 +1847,8 @@
 					</Card.Header>
 					<Card.Content class="space-y-2">
 						{#if loadingPast}
-							{#each Array(5) as _, i (i)}
+							{#each Array(5) as __, i (i)}
+					{__}
 								<Skeleton class="h-16 w-full" />
 							{/each}
 						{:else if pastBookings.length === 0}
@@ -2733,7 +2738,7 @@
 					'general'
 						? 'bg-white text-gray-900 shadow-sm'
 						: 'text-gray-600 hover:text-gray-900'}"
-					onclick={(_) => (activeTab = 'general')}
+					onclick={() => (activeTab = 'general')}
 				>
 					<svg
 						class="mx-auto mb-1 h-4 w-4"
@@ -2754,7 +2759,7 @@
 						'history'
 							? 'bg-white text-gray-900 shadow-sm'
 							: 'text-gray-600 hover:text-gray-900'}"
-						onclick={(_) => (activeTab = 'history')}
+						onclick={() => (activeTab = 'history')}
 					>
 						<svg
 							class="mx-auto mb-1 h-4 w-4"
@@ -2778,7 +2783,7 @@
 						'referral'
 							? 'bg-white text-gray-900 shadow-sm'
 							: 'text-gray-600 hover:text-gray-900'}"
-						onclick={(_) => (activeTab = 'referral')}
+						onclick={() => (activeTab = 'referral')}
 					>
 						<svg
 							class="mx-auto mb-1 h-4 w-4"
@@ -2802,7 +2807,7 @@
 						'cards'
 							? 'bg-white text-gray-900 shadow-sm'
 							: 'text-gray-600 hover:text-gray-900'}"
-						onclick={(_) => {
+						onclick={() => {
 							activeTab = 'cards';
 							savedCardsStore.fetch();
 							savedCardsStore.invalidate();
@@ -2828,7 +2833,7 @@
 					'admin'
 						? 'bg-white text-gray-900 shadow-sm'
 						: 'text-gray-600 hover:text-gray-900'}"
-					onclick={(_) => (activeTab = 'admin')}
+					onclick={() => (activeTab = 'admin')}
 				>
 					<svg
 						class="mx-auto mb-1 h-4 w-4"
diff --git a/frontend/src/routes/admin/+page.svelte b/frontend/src/routes/admin/+page.svelte
index 4c51806..f42cb55 100644
--- a/frontend/src/routes/admin/+page.svelte
+++ b/frontend/src/routes/admin/+page.svelte
@@ -69,8 +69,6 @@
 		settings: 'expanded'
 	});
 
-	let _isMobile = $state(false);
-
 	// =============== Lifted Data Fetching ===============
 	// Fetch shared data once at page level to avoid duplicate API calls
 	let defaultHours = $state<
@@ -96,10 +94,8 @@
 		if (!browser) return;
 
 		const mql = window.matchMedia('(max-width: 767px)');
-		_isMobile = mql.matches;
 
 		function handleChange(e: MediaQueryListEvent) {
-			_isMobile = e.matches;
 			for (const key in sectionState) {
 				sectionState[key as keyof typeof sectionState] = e.matches ? 'collapsed' : 'expanded';
 			}
diff --git a/frontend/src/routes/admin/notifications/+page.svelte b/frontend/src/routes/admin/notifications/+page.svelte
index 95fa23d..2e75b76 100644
--- a/frontend/src/routes/admin/notifications/+page.svelte
+++ b/frontend/src/routes/admin/notifications/+page.svelte
@@ -367,7 +367,8 @@
 {#if pageState === 'loading'}
 	<div class="mx-auto max-w-3xl space-y-4 p-6 pt-24">
 		<Skeleton class="h-8 w-48" />
-		{#each Array(5) as _, i (i)}
+		{#each Array(5) as __, i (i)}
+					{__}
 			<Skeleton class="h-24 w-full" />
 		{/each}
 	</div>
diff --git a/frontend/src/routes/prices/+page.svelte b/frontend/src/routes/prices/+page.svelte
index b3683fe..9b3dde2 100644
--- a/frontend/src/routes/prices/+page.svelte
+++ b/frontend/src/routes/prices/+page.svelte
@@ -62,7 +62,8 @@
 
 	{#if servicesLoading}
 		<div class="space-y-4">
-			{#each Array(5) as _, i (i)}
+			{#each Array(5) as __, i (i)}
+					{__}
 				<Card.Root class="shadow-sm">
 					<Card.Content>
 						<div class="flex items-start justify-between">
diff --git a/frontend/src/routes/schedule/+page.svelte b/frontend/src/routes/schedule/+page.svelte
index 1997441..648ee9a 100644
--- a/frontend/src/routes/schedule/+page.svelte
+++ b/frontend/src/routes/schedule/+page.svelte
@@ -208,7 +208,8 @@
 			<div class="h-8 w-44 rounded-lg bg-gray-200"></div>
 			<div class="h-4 w-64 rounded bg-gray-200"></div>
 			<div class="space-y-4 pt-2">
-				{#each Array(3) as _, i (i)}
+				{#each Array(3) as __, i (i)}
+					{__}
 					<div class="rounded-xl border bg-white p-5 shadow-sm">
 						<div class="mb-3 flex items-center gap-3">
 							<div class="h-4 w-24 rounded bg-gray-200"></div>
@@ -241,7 +242,8 @@
 
 		{#if loading}
 			<div class="space-y-6">
-				{#each Array(3) as _, i (i)}
+				{#each Array(3) as __, i (i)}
+					{__}
 					<div class="animate-pulse rounded-xl border bg-white p-5 shadow-sm">
 						<div class="mb-3 flex items-center gap-3">
 							<div class="h-4 w-24 rounded bg-gray-200"></div>