refactor: extract tab views from collection route into separate components

Moves CollectionView, PlanningView, and SetupsView out of the 634-line collection/index.tsx into dedicated component files. Pure extraction — zero logic changes.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/client/components/SetupsView.tsx

@@ -0,0 +1,112 @@
+import { useState } from "react";
+import { useCreateSetup, useSetups } from "../hooks/useSetups";
+import { SetupCard } from "./SetupCard";
+
+export function SetupsView() {
+	const [newSetupName, setNewSetupName] = useState("");
+	const { data: setups, isLoading } = useSetups();
+	const createSetup = useCreateSetup();
+
+	function handleCreateSetup(e: React.FormEvent) {
+		e.preventDefault();
+		const name = newSetupName.trim();
+		if (!name) return;
+		createSetup.mutate({ name }, { onSuccess: () => setNewSetupName("") });
+	}
+
+	return (
+		<div>
+			{/* Create setup form */}
+			<form onSubmit={handleCreateSetup} className="flex gap-2 mb-6">
+				<input
+					type="text"
+					value={newSetupName}
+					onChange={(e) => setNewSetupName(e.target.value)}
+					placeholder="New setup name..."
+					className="flex-1 px-3 py-2 border border-gray-200 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-gray-400 focus:border-transparent"
+				/>
+				<button
+					type="submit"
+					disabled={!newSetupName.trim() || createSetup.isPending}
+					className="px-4 py-2 bg-gray-700 hover:bg-gray-800 disabled:opacity-50 text-white text-sm font-medium rounded-lg transition-colors"
+				>
+					{createSetup.isPending ? "Creating..." : "Create"}
+				</button>
+			</form>
+
+			{/* Loading skeleton */}
+			{isLoading && (
+				<div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
+					{[1, 2].map((i) => (
+						<div
+							key={i}
+							className="h-24 bg-gray-200 rounded-xl animate-pulse"
+						/>
+					))}
+				</div>
+			)}
+
+			{/* Empty state */}
+			{!isLoading && (!setups || setups.length === 0) && (
+				<div className="py-16">
+					<div className="max-w-lg mx-auto text-center">
+						<h2 className="text-xl font-semibold text-gray-900 mb-8">
+							Build your perfect loadout
+						</h2>
+						<div className="space-y-6 text-left mb-10">
+							<div className="flex items-start gap-4">
+								<div className="flex items-center justify-center w-8 h-8 rounded-full bg-gray-200 text-gray-700 font-bold text-sm shrink-0">
+									1
+								</div>
+								<div>
+									<p className="font-medium text-gray-900">Create a setup</p>
+									<p className="text-sm text-gray-500">
+										Name your loadout for a specific trip or activity
+									</p>
+								</div>
+							</div>
+							<div className="flex items-start gap-4">
+								<div className="flex items-center justify-center w-8 h-8 rounded-full bg-gray-200 text-gray-700 font-bold text-sm shrink-0">
+									2
+								</div>
+								<div>
+									<p className="font-medium text-gray-900">Add items</p>
+									<p className="text-sm text-gray-500">
+										Pick gear from your collection to include in the setup
+									</p>
+								</div>
+							</div>
+							<div className="flex items-start gap-4">
+								<div className="flex items-center justify-center w-8 h-8 rounded-full bg-gray-200 text-gray-700 font-bold text-sm shrink-0">
+									3
+								</div>
+								<div>
+									<p className="font-medium text-gray-900">Track weight</p>
+									<p className="text-sm text-gray-500">
+										See weight breakdown and optimize your pack
+									</p>
+								</div>
+							</div>
+						</div>
+					</div>
+				</div>
+			)}
+
+			{/* Setup grid */}
+			{!isLoading && setups && setups.length > 0 && (
+				<div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
+					{setups.map((setup) => (
+						<SetupCard
+							key={setup.id}
+							id={setup.id}
+							name={setup.name}
+							itemCount={setup.itemCount}
+							totalWeight={setup.totalWeight}
+							totalCost={setup.totalCost}
+						/>
+					))}
+				</div>
+			)}
+		</div>
+	);
+}