diff --git a/biome.json b/biome.json
index 896bd70..a3d660f 100644
--- a/biome.json
+++ b/biome.json
@@ -36,7 +36,8 @@
 				"noLabelWithoutControl": "off"
 			},
 			"suspicious": {
-				"noExplicitAny": "off"
+				"noExplicitAny": "off",
+				"noArrayIndexKey": "off"
 			},
 			"style": {
 				"noNonNullAssertion": "off"
diff --git a/scripts/crawl-all.ts b/scripts/crawl-all.ts
index e79769b..6059959 100644
--- a/scripts/crawl-all.ts
+++ b/scripts/crawl-all.ts
@@ -25,7 +25,7 @@ const args = Object.fromEntries(
 		}),
 );
 
-const tier = args["tier"] ? Number(args["tier"]) : 1;
+const tier = args.tier ? Number(args.tier) : 1;
 const dryRun = args["dry-run"] === "true";
 
 async function listActiveManufacturers(targetTier: number) {
diff --git a/scripts/crawl-manufacturer.ts b/scripts/crawl-manufacturer.ts
index 7118109..a3eae4f 100644
--- a/scripts/crawl-manufacturer.ts
+++ b/scripts/crawl-manufacturer.ts
@@ -34,7 +34,7 @@ const args = Object.fromEntries(
 		}),
 );
 
-const manufacturerSlug = args["manufacturer"];
+const manufacturerSlug = args.manufacturer;
 const dryRun = args["dry-run"] === "true";
 
 if (!manufacturerSlug) {
diff --git a/scripts/grant-admin.ts b/scripts/grant-admin.ts
index 7752890..9363b6f 100644
--- a/scripts/grant-admin.ts
+++ b/scripts/grant-admin.ts
@@ -22,7 +22,11 @@ const [user] = await db
 	.update(users)
 	.set({ isAdmin: !revoke })
 	.where(eq(users.logtoSub, sub))
-	.returning({ id: users.id, logtoSub: users.logtoSub, isAdmin: users.isAdmin });
+	.returning({
+		id: users.id,
+		logtoSub: users.logtoSub,
+		isAdmin: users.isAdmin,
+	});
 
 if (!user) {
 	console.error(`User not found with logto_sub: ${sub}`);
@@ -30,4 +34,6 @@ if (!user) {
 }
 
 const action = revoke ? "Revoked admin from" : "Granted admin to";
-console.log(`${action} user ${user.id} (${user.logtoSub}) — isAdmin: ${user.isAdmin}`);
+console.log(
+	`${action} user ${user.id} (${user.logtoSub}) — isAdmin: ${user.isAdmin}`,
+);
diff --git a/src/client/components/ComparisonTable.tsx b/src/client/components/ComparisonTable.tsx
index 180bf8b..66a2e0f 100644
--- a/src/client/components/ComparisonTable.tsx
+++ b/src/client/components/ComparisonTable.tsx
@@ -244,7 +244,6 @@ export function ComparisonTable({
 				return (
 					<ul className="list-disc list-inside space-y-0.5">
 						{items.map((item, i) => (
-							// biome-ignore lint/suspicious/noArrayIndexKey: stable list of static items
 							<li key={i} className="text-xs text-gray-700">
 								{item}
 							</li>
@@ -263,7 +262,6 @@ export function ComparisonTable({
 				return (
 					<ul className="list-disc list-inside space-y-0.5">
 						{items.map((item, i) => (
-							// biome-ignore lint/suspicious/noArrayIndexKey: stable list of static items
 							<li key={i} className="text-xs text-gray-700">
 								{item}
 							</li>
diff --git a/src/client/components/ItemCard.tsx b/src/client/components/ItemCard.tsx
index a0c8a4a..137b994 100644
--- a/src/client/components/ItemCard.tsx
+++ b/src/client/components/ItemCard.tsx
@@ -61,9 +61,7 @@ export function ItemCard({
 	const duplicateItem = useDuplicateItem();
 
 	const displayName =
-		brand && name.startsWith(`${brand} `)
-			? name.slice(brand.length + 1)
-			: name;
+		brand && name.startsWith(`${brand} `) ? name.slice(brand.length + 1) : name;
 
 	const handleClick =
 		linkTo === null
diff --git a/src/client/hooks/useAdminGlobalItems.ts b/src/client/hooks/useAdminGlobalItems.ts
index 8f0d1bf..0ec583b 100644
--- a/src/client/hooks/useAdminGlobalItems.ts
+++ b/src/client/hooks/useAdminGlobalItems.ts
@@ -67,9 +67,7 @@ export function useAdminGlobalItems(query?: string, tagNames?: string[]) {
 	return useInfiniteQuery({
 		queryKey: ["admin-global-items", query ?? "", tagNames ?? []],
 		queryFn: ({ pageParam = 0 }) =>
-			apiGet<AdminGlobalItemPage>(
-				`/api/admin/items?offset=${pageParam}&${qs}`,
-			),
+			apiGet<AdminGlobalItemPage>(`/api/admin/items?offset=${pageParam}&${qs}`),
 		getNextPageParam: (lastPage) =>
 			lastPage.hasMore ? lastPage.nextOffset : undefined,
 		initialPageParam: 0,
@@ -79,8 +77,7 @@ export function useAdminGlobalItems(query?: string, tagNames?: string[]) {
 export function useAdminGlobalItem(id: number | null) {
 	return useQuery({
 		queryKey: ["admin-global-item", id],
-		queryFn: () =>
-			apiGet<AdminGlobalItemDetail>(`/api/admin/items/${id}`),
+		queryFn: () => apiGet<AdminGlobalItemDetail>(`/api/admin/items/${id}`),
 		enabled: id != null,
 		retry: (count, error) =>
 			error instanceof ApiError && error.status === 404 ? false : count < 3,
@@ -90,13 +87,8 @@ export function useAdminGlobalItem(id: number | null) {
 export function useUpdateAdminGlobalItem() {
 	const queryClient = useQueryClient();
 	return useMutation({
-		mutationFn: ({
-			id,
-			data,
-		}: {
-			id: number;
-			data: UpdateGlobalItemPayload;
-		}) => apiPut<AdminGlobalItemDetail>(`/api/admin/items/${id}`, data),
+		mutationFn: ({ id, data }: { id: number; data: UpdateGlobalItemPayload }) =>
+			apiPut<AdminGlobalItemDetail>(`/api/admin/items/${id}`, data),
 		onSuccess: (_result, { id }) => {
 			queryClient.invalidateQueries({ queryKey: ["admin-global-items"] });
 			queryClient.invalidateQueries({ queryKey: ["admin-global-item", id] });
diff --git a/src/client/hooks/useAuth.ts b/src/client/hooks/useAuth.ts
index 54c457d..1703573 100644
--- a/src/client/hooks/useAuth.ts
+++ b/src/client/hooks/useAuth.ts
@@ -2,7 +2,12 @@ import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import { apiDelete, apiGet, apiPost } from "../lib/api";
 
 interface AuthState {
-	user: { id: string; email?: string; createdAt?: string; isAdmin?: boolean } | null;
+	user: {
+		id: string;
+		email?: string;
+		createdAt?: string;
+		isAdmin?: boolean;
+	} | null;
 	authenticated: boolean;
 }
 
diff --git a/src/client/routeTree.gen.ts b/src/client/routeTree.gen.ts
index 8d92a53..315b76e 100644
--- a/src/client/routeTree.gen.ts
+++ b/src/client/routeTree.gen.ts
@@ -22,8 +22,10 @@ import { Route as UsersUserIdRouteImport } from './routes/users/$userId'
 import { Route as SetupsSetupIdRouteImport } from './routes/setups/$setupId'
 import { Route as ItemsItemIdRouteImport } from './routes/items/$itemId'
 import { Route as GlobalItemsGlobalItemIdRouteImport } from './routes/global-items/$globalItemId'
+import { Route as AdminTagsRouteImport } from './routes/admin/tags'
 import { Route as AdminItemsRouteImport } from './routes/admin/items'
 import { Route as ThreadsThreadIdIndexRouteImport } from './routes/threads/$threadId/index'
+import { Route as AdminTagsTagIdRouteImport } from './routes/admin/tags.$tagId'
 import { Route as AdminItemsItemIdRouteImport } from './routes/admin/items.$itemId'
 import { Route as ThreadsThreadIdCandidatesCandidateIdRouteImport } from './routes/threads/$threadId/candidates/$candidateId'
 
@@ -92,6 +94,11 @@ const GlobalItemsGlobalItemIdRoute = GlobalItemsGlobalItemIdRouteImport.update({
   path: '/global-items/$globalItemId',
   getParentRoute: () => rootRouteImport,
 } as any)
+const AdminTagsRoute = AdminTagsRouteImport.update({
+  id: '/tags',
+  path: '/tags',
+  getParentRoute: () => AdminRoute,
+} as any)
 const AdminItemsRoute = AdminItemsRouteImport.update({
   id: '/items',
   path: '/items',
@@ -102,6 +109,11 @@ const ThreadsThreadIdIndexRoute = ThreadsThreadIdIndexRouteImport.update({
   path: '/threads/$threadId/',
   getParentRoute: () => rootRouteImport,
 } as any)
+const AdminTagsTagIdRoute = AdminTagsTagIdRouteImport.update({
+  id: '/$tagId',
+  path: '/$tagId',
+  getParentRoute: () => AdminTagsRoute,
+} as any)
 const AdminItemsItemIdRoute = AdminItemsItemIdRouteImport.update({
   id: '/$itemId',
   path: '/$itemId',
@@ -121,6 +133,7 @@ export interface FileRoutesByFullPath {
   '/profile': typeof ProfileRoute
   '/settings': typeof SettingsRoute
   '/admin/items': typeof AdminItemsRouteWithChildren
+  '/admin/tags': typeof AdminTagsRouteWithChildren
   '/global-items/$globalItemId': typeof GlobalItemsGlobalItemIdRoute
   '/items/$itemId': typeof ItemsItemIdRoute
   '/setups/$setupId': typeof SetupsSetupIdRoute
@@ -130,6 +143,7 @@ export interface FileRoutesByFullPath {
   '/global-items/': typeof GlobalItemsIndexRoute
   '/setups/': typeof SetupsIndexRoute
   '/admin/items/$itemId': typeof AdminItemsItemIdRoute
+  '/admin/tags/$tagId': typeof AdminTagsTagIdRoute
   '/threads/$threadId/': typeof ThreadsThreadIdIndexRoute
   '/threads/$threadId/candidates/$candidateId': typeof ThreadsThreadIdCandidatesCandidateIdRoute
 }
@@ -139,6 +153,7 @@ export interface FileRoutesByTo {
   '/profile': typeof ProfileRoute
   '/settings': typeof SettingsRoute
   '/admin/items': typeof AdminItemsRouteWithChildren
+  '/admin/tags': typeof AdminTagsRouteWithChildren
   '/global-items/$globalItemId': typeof GlobalItemsGlobalItemIdRoute
   '/items/$itemId': typeof ItemsItemIdRoute
   '/setups/$setupId': typeof SetupsSetupIdRoute
@@ -148,6 +163,7 @@ export interface FileRoutesByTo {
   '/global-items': typeof GlobalItemsIndexRoute
   '/setups': typeof SetupsIndexRoute
   '/admin/items/$itemId': typeof AdminItemsItemIdRoute
+  '/admin/tags/$tagId': typeof AdminTagsTagIdRoute
   '/threads/$threadId': typeof ThreadsThreadIdIndexRoute
   '/threads/$threadId/candidates/$candidateId': typeof ThreadsThreadIdCandidatesCandidateIdRoute
 }
@@ -159,6 +175,7 @@ export interface FileRoutesById {
   '/profile': typeof ProfileRoute
   '/settings': typeof SettingsRoute
   '/admin/items': typeof AdminItemsRouteWithChildren
+  '/admin/tags': typeof AdminTagsRouteWithChildren
   '/global-items/$globalItemId': typeof GlobalItemsGlobalItemIdRoute
   '/items/$itemId': typeof ItemsItemIdRoute
   '/setups/$setupId': typeof SetupsSetupIdRoute
@@ -168,6 +185,7 @@ export interface FileRoutesById {
   '/global-items/': typeof GlobalItemsIndexRoute
   '/setups/': typeof SetupsIndexRoute
   '/admin/items/$itemId': typeof AdminItemsItemIdRoute
+  '/admin/tags/$tagId': typeof AdminTagsTagIdRoute
   '/threads/$threadId/': typeof ThreadsThreadIdIndexRoute
   '/threads/$threadId/candidates/$candidateId': typeof ThreadsThreadIdCandidatesCandidateIdRoute
 }
@@ -180,6 +198,7 @@ export interface FileRouteTypes {
     | '/profile'
     | '/settings'
     | '/admin/items'
+    | '/admin/tags'
     | '/global-items/$globalItemId'
     | '/items/$itemId'
     | '/setups/$setupId'
@@ -189,6 +208,7 @@ export interface FileRouteTypes {
     | '/global-items/'
     | '/setups/'
     | '/admin/items/$itemId'
+    | '/admin/tags/$tagId'
     | '/threads/$threadId/'
     | '/threads/$threadId/candidates/$candidateId'
   fileRoutesByTo: FileRoutesByTo
@@ -198,6 +218,7 @@ export interface FileRouteTypes {
     | '/profile'
     | '/settings'
     | '/admin/items'
+    | '/admin/tags'
     | '/global-items/$globalItemId'
     | '/items/$itemId'
     | '/setups/$setupId'
@@ -207,6 +228,7 @@ export interface FileRouteTypes {
     | '/global-items'
     | '/setups'
     | '/admin/items/$itemId'
+    | '/admin/tags/$tagId'
     | '/threads/$threadId'
     | '/threads/$threadId/candidates/$candidateId'
   id:
@@ -217,6 +239,7 @@ export interface FileRouteTypes {
     | '/profile'
     | '/settings'
     | '/admin/items'
+    | '/admin/tags'
     | '/global-items/$globalItemId'
     | '/items/$itemId'
     | '/setups/$setupId'
@@ -226,6 +249,7 @@ export interface FileRouteTypes {
     | '/global-items/'
     | '/setups/'
     | '/admin/items/$itemId'
+    | '/admin/tags/$tagId'
     | '/threads/$threadId/'
     | '/threads/$threadId/candidates/$candidateId'
   fileRoutesById: FileRoutesById
@@ -340,6 +364,13 @@ declare module '@tanstack/react-router' {
       preLoaderRoute: typeof GlobalItemsGlobalItemIdRouteImport
       parentRoute: typeof rootRouteImport
     }
+    '/admin/tags': {
+      id: '/admin/tags'
+      path: '/tags'
+      fullPath: '/admin/tags'
+      preLoaderRoute: typeof AdminTagsRouteImport
+      parentRoute: typeof AdminRoute
+    }
     '/admin/items': {
       id: '/admin/items'
       path: '/items'
@@ -354,6 +385,13 @@ declare module '@tanstack/react-router' {
       preLoaderRoute: typeof ThreadsThreadIdIndexRouteImport
       parentRoute: typeof rootRouteImport
     }
+    '/admin/tags/$tagId': {
+      id: '/admin/tags/$tagId'
+      path: '/$tagId'
+      fullPath: '/admin/tags/$tagId'
+      preLoaderRoute: typeof AdminTagsTagIdRouteImport
+      parentRoute: typeof AdminTagsRoute
+    }
     '/admin/items/$itemId': {
       id: '/admin/items/$itemId'
       path: '/$itemId'
@@ -383,13 +421,27 @@ const AdminItemsRouteWithChildren = AdminItemsRoute._addFileChildren(
   AdminItemsRouteChildren,
 )
 
+interface AdminTagsRouteChildren {
+  AdminTagsTagIdRoute: typeof AdminTagsTagIdRoute
+}
+
+const AdminTagsRouteChildren: AdminTagsRouteChildren = {
+  AdminTagsTagIdRoute: AdminTagsTagIdRoute,
+}
+
+const AdminTagsRouteWithChildren = AdminTagsRoute._addFileChildren(
+  AdminTagsRouteChildren,
+)
+
 interface AdminRouteChildren {
   AdminItemsRoute: typeof AdminItemsRouteWithChildren
+  AdminTagsRoute: typeof AdminTagsRouteWithChildren
   AdminIndexRoute: typeof AdminIndexRoute
 }
 
 const AdminRouteChildren: AdminRouteChildren = {
   AdminItemsRoute: AdminItemsRouteWithChildren,
+  AdminTagsRoute: AdminTagsRouteWithChildren,
   AdminIndexRoute: AdminIndexRoute,
 }
 
diff --git a/src/client/routes/admin.tsx b/src/client/routes/admin.tsx
index b64b8b2..ff6f53b 100644
--- a/src/client/routes/admin.tsx
+++ b/src/client/routes/admin.tsx
@@ -1,4 +1,9 @@
-import { Link, createFileRoute, Outlet, useNavigate } from "@tanstack/react-router";
+import {
+	createFileRoute,
+	Link,
+	Outlet,
+	useNavigate,
+} from "@tanstack/react-router";
 import { useEffect } from "react";
 import { useAuth } from "../hooks/useAuth";
 import { LucideIcon } from "../lib/iconData";
diff --git a/src/client/routes/admin/items.$itemId.tsx b/src/client/routes/admin/items.$itemId.tsx
index bfb7b74..56c1c79 100644
--- a/src/client/routes/admin/items.$itemId.tsx
+++ b/src/client/routes/admin/items.$itemId.tsx
@@ -63,7 +63,10 @@ function TagInput({
 					{tag}
 					<button
 						type="button"
-						onClick={(e) => { e.stopPropagation(); removeTag(tag); }}
+						onClick={(e) => {
+							e.stopPropagation();
+							removeTag(tag);
+						}}
 						className="text-gray-400 hover:text-gray-600"
 					>
 						×
@@ -76,7 +79,9 @@ function TagInput({
 				value={inputValue}
 				onChange={(e) => setInputValue(e.target.value)}
 				onKeyDown={handleKeyDown}
-				onBlur={() => { if (inputValue) addTag(inputValue); }}
+				onBlur={() => {
+					if (inputValue) addTag(inputValue);
+				}}
 				placeholder={value.length === 0 ? "Add tags..." : ""}
 				className="outline-none bg-transparent text-sm flex-1 min-w-[100px]"
 			/>
@@ -91,7 +96,11 @@ function AdminItemEditPage() {
 	const id = Number(itemId);
 	const navigate = useNavigate();
 
-	const { data: item, isLoading, isError } = useAdminGlobalItem(isNaN(id) ? null : id);
+	const {
+		data: item,
+		isLoading,
+		isError,
+	} = useAdminGlobalItem(Number.isNaN(id) ? null : id);
 	const updateMutation = useUpdateAdminGlobalItem();
 	const deleteMutation = useDeleteAdminGlobalItem();
 
@@ -121,7 +130,8 @@ function AdminItemEditPage() {
 				model: item.model,
 				category: item.category ?? "",
 				weightGrams: item.weightGrams != null ? String(item.weightGrams) : "",
-				priceCents: item.priceCents != null ? String(item.priceCents / 100) : "",
+				priceCents:
+					item.priceCents != null ? String(item.priceCents / 100) : "",
 				imageUrl: item.imageUrl ?? "",
 				description: item.description ?? "",
 				sourceUrl: item.sourceUrl ?? "",
@@ -134,7 +144,9 @@ function AdminItemEditPage() {
 
 	// Fetch manufacturers for dropdown
 	useEffect(() => {
-		apiGet<Manufacturer[]>("/api/manufacturers").then(setManufacturers).catch(() => {});
+		apiGet<Manufacturer[]>("/api/manufacturers")
+			.then(setManufacturers)
+			.catch(() => {});
 	}, []);
 
 	function handleChange(
@@ -146,7 +158,8 @@ function AdminItemEditPage() {
 
 	async function handleSave(e: React.FormEvent) {
 		e.preventDefault();
-		const weightGrams = form.weightGrams !== "" ? Number(form.weightGrams) : null;
+		const weightGrams =
+			form.weightGrams !== "" ? Number(form.weightGrams) : null;
 		const priceCents =
 			form.priceCents !== "" ? Math.round(Number(form.priceCents) * 100) : null;
 
@@ -184,7 +197,10 @@ function AdminItemEditPage() {
 				<div className="h-4 w-16 bg-gray-100 rounded animate-pulse mb-6" />
 				<div className="space-y-4">
 					{Array.from({ length: 8 }).map((_, i) => (
-						<div key={i} className="h-10 bg-gray-100 rounded-lg animate-pulse" />
+						<div
+							key={i}
+							className="h-10 bg-gray-100 rounded-lg animate-pulse"
+						/>
 					))}
 				</div>
 			</div>
@@ -194,7 +210,9 @@ function AdminItemEditPage() {
 	if (isError || !item) {
 		return (
 			<div className="max-w-2xl mx-auto text-center py-12">
-				<p className="text-sm text-red-500">Failed to load item. Please try again.</p>
+				<p className="text-sm text-red-500">
+					Failed to load item. Please try again.
+				</p>
 			</div>
 		);
 	}
@@ -252,7 +270,9 @@ function AdminItemEditPage() {
 							<label className={labelClass}>Brand (Manufacturer)</label>
 							<select
 								value={form.manufacturerId}
-								onChange={(e) => handleChange("manufacturerId", Number(e.target.value))}
+								onChange={(e) =>
+									handleChange("manufacturerId", Number(e.target.value))
+								}
 								className={`${inputClass} appearance-none bg-white`}
 							>
 								<option value={0}>Select manufacturer...</option>
diff --git a/src/client/routes/admin/items.tsx b/src/client/routes/admin/items.tsx
index ee0891a..0fa40da 100644
--- a/src/client/routes/admin/items.tsx
+++ b/src/client/routes/admin/items.tsx
@@ -87,6 +87,7 @@ function AdminItemsPage() {
 				<div className="flex flex-wrap gap-2 mb-4">
 					{allTags.map((tag) => (
 						<button
+							type="button"
 							key={tag.id}
 							onClick={() => toggleTag(tag.name)}
 							className={`px-3 py-1 rounded-full text-xs font-medium transition-colors ${
@@ -150,25 +151,36 @@ function AdminItemsPage() {
 											key={item.id}
 											className="border-b border-gray-50 hover:bg-gray-50 cursor-pointer transition-colors"
 											onClick={() =>
-												navigate({ to: "/admin/items/$itemId", params: { itemId: String(item.id) } })
+												navigate({
+													to: "/admin/items/$itemId",
+													params: { itemId: String(item.id) },
+												})
 											}
 										>
 											<td className="px-4 py-3">
-												<span className="font-medium text-gray-900">{item.brand}</span>
+												<span className="font-medium text-gray-900">
+													{item.brand}
+												</span>
 												<span className="text-gray-500 ml-1">{item.model}</span>
 											</td>
 											<td className="px-4 py-3 text-gray-700">
-												{item.category ?? <span className="text-gray-300">—</span>}
+												{item.category ?? (
+													<span className="text-gray-300">—</span>
+												)}
 											</td>
 											<td className="px-4 py-3 text-gray-700">
-												{item.weightGrams != null
-													? formatWeight(item.weightGrams)
-													: <span className="text-gray-300">—</span>}
+												{item.weightGrams != null ? (
+													formatWeight(item.weightGrams)
+												) : (
+													<span className="text-gray-300">—</span>
+												)}
 											</td>
 											<td className="px-4 py-3 text-gray-700">
-												{item.priceCents != null
-													? formatPrice(item.priceCents)
-													: <span className="text-gray-300">—</span>}
+												{item.priceCents != null ? (
+													formatPrice(item.priceCents)
+												) : (
+													<span className="text-gray-300">—</span>
+												)}
 											</td>
 											<td className="px-4 py-3">
 												{item.tags.length === 0 ? (
@@ -209,7 +221,9 @@ function AdminItemsPage() {
 					{/* Empty state (after load, no items) */}
 					{!isLoading && allItems.length === 0 && !isError && (
 						<div className="py-12 text-center">
-							<p className="text-sm font-medium text-gray-900">No items found</p>
+							<p className="text-sm font-medium text-gray-900">
+								No items found
+							</p>
 							<p className="text-sm text-gray-400 mt-1">
 								Try a different search or clear your filters.
 							</p>
@@ -221,7 +235,9 @@ function AdminItemsPage() {
 
 					{/* Loading more */}
 					{isFetchingNextPage && (
-						<div className="py-4 text-center text-sm text-gray-400">Loading...</div>
+						<div className="py-4 text-center text-sm text-gray-400">
+							Loading...
+						</div>
 					)}
 
 					{/* All loaded message */}
diff --git a/src/client/routes/admin/tags.$tagId.tsx b/src/client/routes/admin/tags.$tagId.tsx
index c8c7db8..c652a3a 100644
--- a/src/client/routes/admin/tags.$tagId.tsx
+++ b/src/client/routes/admin/tags.$tagId.tsx
@@ -1,11 +1,11 @@
 import { createFileRoute, useNavigate } from "@tanstack/react-router";
 import { useEffect, useState } from "react";
 import {
+	type AdminTag,
 	useAdminTag,
 	useAdminTags,
 	useDeleteAdminTag,
 	useUpdateAdminTag,
-	type AdminTag,
 } from "../../hooks/useAdminTags";
 
 export const Route = createFileRoute("/admin/tags/$tagId")({
@@ -53,12 +53,19 @@ function AdminTagEditPage() {
 	const id = Number(tagId);
 	const navigate = useNavigate();
 
-	const { data: tag, isLoading, isError } = useAdminTag(isNaN(id) ? null : id);
+	const {
+		data: tag,
+		isLoading,
+		isError,
+	} = useAdminTag(Number.isNaN(id) ? null : id);
 	const { data: allTags } = useAdminTags();
 	const updateMutation = useUpdateAdminTag();
 	const deleteMutation = useDeleteAdminTag();
 
-	const [form, setForm] = useState({ name: "", parentId: null as number | null });
+	const [form, setForm] = useState({
+		name: "",
+		parentId: null as number | null,
+	});
 	const [showDeleteConfirm, setShowDeleteConfirm] = useState(false);
 
 	useEffect(() => {
@@ -67,7 +74,10 @@ function AdminTagEditPage() {
 		}
 	}, [tag]);
 
-	function handleChange(field: keyof typeof form, value: string | number | null) {
+	function handleChange(
+		field: keyof typeof form,
+		value: string | number | null,
+	) {
 		setForm((prev) => ({ ...prev, [field]: value }));
 	}
 
@@ -95,7 +105,10 @@ function AdminTagEditPage() {
 				<div className="h-4 w-16 bg-gray-100 rounded animate-pulse mb-6" />
 				<div className="space-y-4">
 					{Array.from({ length: 3 }).map((_, i) => (
-						<div key={i} className="h-10 bg-gray-100 rounded-lg animate-pulse" />
+						<div
+							key={i}
+							className="h-10 bg-gray-100 rounded-lg animate-pulse"
+						/>
 					))}
 				</div>
 			</div>
@@ -105,7 +118,9 @@ function AdminTagEditPage() {
 	if (isError || !tag) {
 		return (
 			<div className="max-w-2xl mx-auto text-center py-12">
-				<p className="text-sm text-red-500">Failed to load tag. Please try again.</p>
+				<p className="text-sm text-red-500">
+					Failed to load tag. Please try again.
+				</p>
 			</div>
 		);
 	}
@@ -149,7 +164,10 @@ function AdminTagEditPage() {
 					<select
 						value={form.parentId ?? ""}
 						onChange={(e) =>
-							handleChange("parentId", e.target.value ? Number(e.target.value) : null)
+							handleChange(
+								"parentId",
+								e.target.value ? Number(e.target.value) : null,
+							)
 						}
 						className={`${inputClass} appearance-none bg-white`}
 					>
diff --git a/src/client/routes/admin/tags.tsx b/src/client/routes/admin/tags.tsx
index a3f703b..d43c919 100644
--- a/src/client/routes/admin/tags.tsx
+++ b/src/client/routes/admin/tags.tsx
@@ -1,9 +1,9 @@
 import { createFileRoute, useNavigate } from "@tanstack/react-router";
 import { useEffect, useState } from "react";
 import {
+	type AdminTag,
 	useAdminTags,
 	useCreateAdminTag,
-	type AdminTag,
 } from "../../hooks/useAdminTags";
 import { LucideIcon } from "../../lib/iconData";
 
@@ -287,7 +287,9 @@ function AdminTagsPage() {
 								</p>
 							) : (
 								<>
-									<p className="text-sm font-medium text-gray-900">No tags yet</p>
+									<p className="text-sm font-medium text-gray-900">
+										No tags yet
+									</p>
 									<p className="text-sm text-gray-400 mt-1">
 										Add your first tag using the form above.
 									</p>
diff --git a/src/client/routes/settings.tsx b/src/client/routes/settings.tsx
index 7a79aa2..f7025f2 100644
--- a/src/client/routes/settings.tsx
+++ b/src/client/routes/settings.tsx
@@ -202,7 +202,6 @@ function ImportExportSection() {
 						</p>
 					)}
 					{importResult.errors.map((err, i) => (
-						// biome-ignore lint/suspicious/noArrayIndexKey: static error list
 						<p key={i} className="text-red-600">
 							{err}
 						</p>
diff --git a/src/db/schema.ts b/src/db/schema.ts
index a851e39..0fc3bfe 100644
--- a/src/db/schema.ts
+++ b/src/db/schema.ts
@@ -204,7 +204,9 @@ export const globalItems = pgTable(
 export const tags = pgTable("tags", {
 	id: serial("id").primaryKey(),
 	name: text("name").notNull().unique(),
-	parentId: integer("parent_id").references(() => tags.id, { onDelete: "set null" }),
+	parentId: integer("parent_id").references(() => tags.id, {
+		onDelete: "set null",
+	}),
 	createdAt: timestamp("created_at").defaultNow().notNull(),
 });
 
diff --git a/src/server/middleware/auth.ts b/src/server/middleware/auth.ts
index 8c990cb..0d78062 100644
--- a/src/server/middleware/auth.ts
+++ b/src/server/middleware/auth.ts
@@ -1,5 +1,5 @@
-import type { Context, Next } from "hono";
 import { eq } from "drizzle-orm";
+import type { Context, Next } from "hono";
 import { users } from "../../db/schema.ts";
 import { getOrCreateUser, verifyApiKey } from "../services/auth.service";
 import { getOrCreateUncategorized } from "../services/category.service";
diff --git a/src/server/routes/admin-items.ts b/src/server/routes/admin-items.ts
index 0ddfd50..874c2fa 100644
--- a/src/server/routes/admin-items.ts
+++ b/src/server/routes/admin-items.ts
@@ -44,8 +44,8 @@ app.get("/", async (c) => {
 	const result = await listGlobalItemsForAdmin(db, {
 		query: q || undefined,
 		tagNames,
-		offset: isNaN(offset) ? 0 : offset,
-		limit: isNaN(limit) || limit > 100 ? 50 : limit,
+		offset: Number.isNaN(offset) ? 0 : offset,
+		limit: Number.isNaN(limit) || limit > 100 ? 50 : limit,
 	});
 
 	return c.json(result);
@@ -62,19 +62,15 @@ app.get("/:id", async (c) => {
 });
 
 // PUT /api/admin/items/:id — update item fields
-app.put(
-	"/:id",
-	zValidator("json", updateGlobalItemAdminSchema),
-	async (c) => {
-		const db = c.get("db");
-		const id = parseId(c.req.param("id"));
-		if (!id) return c.json({ error: "Invalid item ID" }, 400);
-		const data = c.req.valid("json");
-		const item = await updateGlobalItemById(db, id, data);
-		if (!item) return c.json({ error: "Global item not found" }, 404);
-		return c.json(item);
-	},
-);
+app.put("/:id", zValidator("json", updateGlobalItemAdminSchema), async (c) => {
+	const db = c.get("db");
+	const id = parseId(c.req.param("id"));
+	if (!id) return c.json({ error: "Invalid item ID" }, 400);
+	const data = c.req.valid("json");
+	const item = await updateGlobalItemById(db, id, data);
+	if (!item) return c.json({ error: "Global item not found" }, 404);
+	return c.json(item);
+});
 
 // DELETE /api/admin/items/:id — delete item with FK cleanup
 app.delete("/:id", async (c) => {
diff --git a/src/server/services/global-item.service.ts b/src/server/services/global-item.service.ts
index fbfff83..9947c7f 100644
--- a/src/server/services/global-item.service.ts
+++ b/src/server/services/global-item.service.ts
@@ -178,7 +178,12 @@ export async function listGlobalItemsForAdmin(
 		})
 		.from(globalItemTags)
 		.innerJoin(tags, eq(tags.id, globalItemTags.tagId))
-		.where(sql`${globalItemTags.globalItemId} IN (${sql.join(ids.map((id) => sql`${id}`), sql`, `)})`);
+		.where(
+			sql`${globalItemTags.globalItemId} IN (${sql.join(
+				ids.map((id) => sql`${id}`),
+				sql`, `,
+			)})`,
+		);
 
 	const tagsByItemId = new Map<number, string[]>();
 	for (const row of tagRows) {
@@ -194,7 +199,12 @@ export async function listGlobalItemsForAdmin(
 			ownerCount: count(),
 		})
 		.from(items)
-		.where(sql`${items.globalItemId} IN (${sql.join(ids.map((id) => sql`${id}`), sql`, `)})`)
+		.where(
+			sql`${items.globalItemId} IN (${sql.join(
+				ids.map((id) => sql`${id}`),
+				sql`, `,
+			)})`,
+		)
 		.groupBy(items.globalItemId);
 
 	const ownerCountById = new Map<number, number>();
@@ -241,16 +251,22 @@ export async function updateGlobalItemById(
 
 		// Build partial update — only set provided fields
 		const updateSet: Record<string, unknown> = {};
-		if (fields.manufacturerId !== undefined) updateSet.manufacturerId = fields.manufacturerId;
+		if (fields.manufacturerId !== undefined)
+			updateSet.manufacturerId = fields.manufacturerId;
 		if (fields.model !== undefined) updateSet.model = fields.model;
 		if ("category" in fields) updateSet.category = fields.category ?? null;
-		if ("weightGrams" in fields) updateSet.weightGrams = fields.weightGrams ?? null;
-		if ("priceCents" in fields) updateSet.priceCents = fields.priceCents ?? null;
+		if ("weightGrams" in fields)
+			updateSet.weightGrams = fields.weightGrams ?? null;
+		if ("priceCents" in fields)
+			updateSet.priceCents = fields.priceCents ?? null;
 		if ("imageUrl" in fields) updateSet.imageUrl = fields.imageUrl ?? null;
-		if ("description" in fields) updateSet.description = fields.description ?? null;
+		if ("description" in fields)
+			updateSet.description = fields.description ?? null;
 		if ("sourceUrl" in fields) updateSet.sourceUrl = fields.sourceUrl ?? null;
-		if ("imageCredit" in fields) updateSet.imageCredit = fields.imageCredit ?? null;
-		if ("imageSourceUrl" in fields) updateSet.imageSourceUrl = fields.imageSourceUrl ?? null;
+		if ("imageCredit" in fields)
+			updateSet.imageCredit = fields.imageCredit ?? null;
+		if ("imageSourceUrl" in fields)
+			updateSet.imageSourceUrl = fields.imageSourceUrl ?? null;
 
 		let item: typeof globalItems.$inferSelect | undefined;
 		if (Object.keys(updateSet).length > 0) {
@@ -295,14 +311,10 @@ export async function deleteGlobalItem(db: Db, id: number) {
 			.where(eq(items.globalItemId, id));
 
 		// 3. Remove tag associations (FK: globalItemTags.globalItemId → globalItems.id, no cascade)
-		await tx
-			.delete(globalItemTags)
-			.where(eq(globalItemTags.globalItemId, id));
+		await tx.delete(globalItemTags).where(eq(globalItemTags.globalItemId, id));
 
 		// 4. Delete the global item
-		await tx
-			.delete(globalItems)
-			.where(eq(globalItems.id, id));
+		await tx.delete(globalItems).where(eq(globalItems.id, id));
 
 		return true;
 	});
diff --git a/tests/routes/admin-tags.test.ts b/tests/routes/admin-tags.test.ts
index 9869572..c8b76da 100644
--- a/tests/routes/admin-tags.test.ts
+++ b/tests/routes/admin-tags.test.ts
@@ -64,7 +64,11 @@ describe("Admin Tag Routes", () => {
 			});
 			expect(res.status).toBe(201);
 			const body = await res.json();
-			expect(body).toMatchObject({ id: expect.any(Number), name: "ultralight", parentId: null });
+			expect(body).toMatchObject({
+				id: expect.any(Number),
+				name: "ultralight",
+				parentId: null,
+			});
 		});
 
 		it("creates tag with parentId", async () => {
diff --git a/tests/services/global-item.service.test.ts b/tests/services/global-item.service.test.ts
index 4b573cb..89849e5 100644
--- a/tests/services/global-item.service.test.ts
+++ b/tests/services/global-item.service.test.ts
@@ -536,9 +536,15 @@ describe("listGlobalItemsForAdmin", () => {
 
 	it("filters by query string (brand/model)", async () => {
 		const mfr = await insertManufacturer(db, "Salsa", "salsa");
-		await insertGlobalItem(db, { manufacturerId: mfr.id, model: "Woodsmoke 700" });
+		await insertGlobalItem(db, {
+			manufacturerId: mfr.id,
+			model: "Woodsmoke 700",
+		});
 		const mfr2 = await insertManufacturer(db, "Apidura", "apidura");
-		await insertGlobalItem(db, { manufacturerId: mfr2.id, model: "Racing Saddle Bag" });
+		await insertGlobalItem(db, {
+			manufacturerId: mfr2.id,
+			model: "Racing Saddle Bag",
+		});
 
 		const result = await listGlobalItemsForAdmin(db, { query: "salsa" });
 		expect(result.items).toHaveLength(1);
@@ -547,7 +553,10 @@ describe("listGlobalItemsForAdmin", () => {
 
 	it("includes tags and ownerCount per item", async () => {
 		const mfr = await insertManufacturer(db);
-		const globalItem = await insertGlobalItem(db, { manufacturerId: mfr.id, model: "Test Item" });
+		const globalItem = await insertGlobalItem(db, {
+			manufacturerId: mfr.id,
+			model: "Test Item",
+		});
 		const tag = await insertTag(db, "bikepacking");
 		await tagGlobalItem(db, globalItem.id, tag.id!);
 
@@ -556,7 +565,9 @@ describe("listGlobalItemsForAdmin", () => {
 			.insert(schema.users)
 			.values({ logtoSub: "test-sub" })
 			.returning();
-		await insertItem(db, "My Test Item", user!.id, { globalItemId: globalItem.id });
+		await insertItem(db, "My Test Item", user!.id, {
+			globalItemId: globalItem.id,
+		});
 
 		const result = await listGlobalItemsForAdmin(db);
 		expect(result.items).toHaveLength(1);
@@ -579,7 +590,10 @@ describe("updateGlobalItemById", () => {
 
 	it("updates model field by id", async () => {
 		const mfr = await insertManufacturer(db);
-		const globalItem = await insertGlobalItem(db, { manufacturerId: mfr.id, model: "Original" });
+		const globalItem = await insertGlobalItem(db, {
+			manufacturerId: mfr.id,
+			model: "Original",
+		});
 
 		await updateGlobalItemById(db, globalItem.id, { model: "Updated" });
 
@@ -589,9 +603,14 @@ describe("updateGlobalItemById", () => {
 
 	it("syncs tags when tags array provided", async () => {
 		const mfr = await insertManufacturer(db);
-		const globalItem = await insertGlobalItem(db, { manufacturerId: mfr.id, model: "Tagged Item" });
+		const globalItem = await insertGlobalItem(db, {
+			manufacturerId: mfr.id,
+			model: "Tagged Item",
+		});
 
-		await updateGlobalItemById(db, globalItem.id, { tags: ["cycling", "gravel"] });
+		await updateGlobalItemById(db, globalItem.id, {
+			tags: ["cycling", "gravel"],
+		});
 
 		const result = await listGlobalItemsForAdmin(db);
 		const found = result.items.find((i) => i.id === globalItem.id);
@@ -614,7 +633,10 @@ describe("deleteGlobalItem", () => {
 
 	it("deletes item and returns true", async () => {
 		const mfr = await insertManufacturer(db);
-		const globalItem = await insertGlobalItem(db, { manufacturerId: mfr.id, model: "To Delete" });
+		const globalItem = await insertGlobalItem(db, {
+			manufacturerId: mfr.id,
+			model: "To Delete",
+		});
 
 		const result = await deleteGlobalItem(db, globalItem.id);
 		expect(result).toBe(true);
@@ -625,12 +647,17 @@ describe("deleteGlobalItem", () => {
 
 	it("nullifies items.globalItemId before deleting", async () => {
 		const mfr = await insertManufacturer(db);
-		const globalItem = await insertGlobalItem(db, { manufacturerId: mfr.id, model: "Owned Item" });
+		const globalItem = await insertGlobalItem(db, {
+			manufacturerId: mfr.id,
+			model: "Owned Item",
+		});
 		const [user] = await db
 			.insert(schema.users)
 			.values({ logtoSub: "delete-test-sub" })
 			.returning();
-		const userItem = await insertItem(db, "User Item", user!.id, { globalItemId: globalItem.id });
+		const userItem = await insertItem(db, "User Item", user!.id, {
+			globalItemId: globalItem.id,
+		});
 
 		await deleteGlobalItem(db, globalItem.id);
 
@@ -643,7 +670,10 @@ describe("deleteGlobalItem", () => {
 
 	it("removes globalItemTags before deleting", async () => {
 		const mfr = await insertManufacturer(db);
-		const globalItem = await insertGlobalItem(db, { manufacturerId: mfr.id, model: "Tagged Delete" });
+		const globalItem = await insertGlobalItem(db, {
+			manufacturerId: mfr.id,
+			model: "Tagged Delete",
+		});
 		const tag = await insertTag(db, "delete-tag");
 		await tagGlobalItem(db, globalItem.id, tag.id!);
 
diff --git a/tests/services/manufacturer.service.test.ts b/tests/services/manufacturer.service.test.ts
index ecad938..42ac6bf 100644
--- a/tests/services/manufacturer.service.test.ts
+++ b/tests/services/manufacturer.service.test.ts
@@ -1,5 +1,4 @@
 import { beforeEach, describe, expect, it } from "bun:test";
-import { manufacturers } from "../../src/db/schema.ts";
 import {
 	createManufacturer,
 	getManufacturerBySlug,
diff --git a/tests/services/tag.service.test.ts b/tests/services/tag.service.test.ts
index 37fba06..aefd15f 100644
--- a/tests/services/tag.service.test.ts
+++ b/tests/services/tag.service.test.ts
@@ -5,16 +5,11 @@ import {
 	deleteTag,
 	getAdminTags,
 	getAllTags,
-	getTagWithCounts,
 	updateTag,
 } from "../../src/server/services/tag.service.ts";
 import { createTestDb } from "../helpers/db.ts";
 
-async function insertTag(
-	db: any,
-	name: string,
-	parentId?: number | null,
-) {
+async function insertTag(db: any, name: string, parentId?: number | null) {
 	const [row] = await db
 		.insert(tags)
 		.values({ name, parentId: parentId ?? null })
@@ -108,7 +103,10 @@ describe("createTag", () => {
 
 	it("creates a tag with parentId set to an existing tag id", async () => {
 		const parent = await createTag(db, { name: "gear" });
-		const child = await createTag(db, { name: "clothing", parentId: parent.id });
+		const child = await createTag(db, {
+			name: "clothing",
+			parentId: parent.id,
+		});
 		expect(child.parentId).toBe(parent.id);
 	});
 });
@@ -175,7 +173,7 @@ describe("deleteTag", () => {
 		const parent = await insertTag(db, "parent");
 		const child = await insertTag(db, "child", parent.id);
 		await deleteTag(db, parent.id);
-		const [childRow] = await db
+		const [_childRow] = await db
 			.select({ parentId: tags.parentId })
 			.from(tags)
 			.where((t: any) => t.id === child.id);