feat(23-01): create ManualEntryForm component

- Compact form with name, category, weight, price, purchase price, product URL, notes, image
- Uses CategoryPicker and ImageUpload reusable components
- Calls useCreateItem without globalItemId for standalone item creation
- Back arrow (ArrowLeft) calls onBack prop to return to search results
- Converts price strings to cents via Math.round(Number(val) * 100)
- No toast.success on save — success card in overlay handles feedback

src/client/components/ManualEntryForm.tsx

@@ -0,0 +1,245 @@
+import { ArrowLeft } from "lucide-react";
+import { useEffect, useState } from "react";
+import { useCategories } from "../hooks/useCategories";
+import { useCreateItem } from "../hooks/useItems";
+import { CategoryPicker } from "./CategoryPicker";
+import { ImageUpload } from "./ImageUpload";
+
+interface ManualEntryFormProps {
+	initialName?: string;
+	onSuccess: (itemName: string) => void;
+	onBack: () => void;
+}
+
+export function ManualEntryForm({
+	initialName,
+	onSuccess,
+	onBack,
+}: ManualEntryFormProps) {
+	const { data: categories } = useCategories();
+	const createItem = useCreateItem();
+
+	const [name, setName] = useState(initialName ?? "");
+	const [categoryId, setCategoryId] = useState<number | null>(null);
+	const [weightGrams, setWeightGrams] = useState("");
+	const [priceDollars, setPriceDollars] = useState("");
+	const [purchasePrice, setPurchasePrice] = useState("");
+	const [notes, setNotes] = useState("");
+	const [productUrl, setProductUrl] = useState("");
+	const [imageFilename, setImageFilename] = useState<string | null>(null);
+	const [error, setError] = useState<string | null>(null);
+
+	// Pre-select first category when categories load
+	useEffect(() => {
+		if (categories && categories.length > 0 && categoryId === null) {
+			setCategoryId(categories[0].id);
+		}
+	}, [categories, categoryId]);
+
+	function handleSubmit(e: React.FormEvent) {
+		e.preventDefault();
+
+		if (!name.trim()) {
+			setError("Name is required");
+			return;
+		}
+		if (categoryId === null) {
+			setError("Please select a category");
+			return;
+		}
+
+		setError(null);
+
+		createItem.mutate(
+			{
+				name: name.trim(),
+				categoryId,
+				weightGrams: weightGrams ? Number(weightGrams) : undefined,
+				priceCents: priceDollars
+					? Math.round(Number(priceDollars) * 100)
+					: undefined,
+				purchasePriceCents: purchasePrice
+					? Math.round(Number(purchasePrice) * 100)
+					: undefined,
+				notes: notes || undefined,
+				productUrl: productUrl || undefined,
+				imageFilename: imageFilename ?? undefined,
+			},
+			{
+				onSuccess: (item) => {
+					onSuccess(item.name);
+				},
+				onError: (err) => {
+					setError(err instanceof Error ? err.message : "Failed to save");
+				},
+			},
+		);
+	}
+
+	return (
+		<div className="max-w-2xl mx-auto px-4 sm:px-6 lg:px-8 py-4">
+			{/* Back arrow row */}
+			<div className="flex items-center gap-1.5 mb-4">
+				<button
+					type="button"
+					onClick={onBack}
+					className="p-0.5 text-gray-400 hover:text-gray-600 transition-colors"
+				>
+					<ArrowLeft className="w-4 h-4" />
+				</button>
+				<p className="text-xs font-medium text-gray-400">Add Manually</p>
+			</div>
+
+			<form onSubmit={handleSubmit} className="space-y-4">
+				{/* Name */}
+				<div>
+					<label
+						htmlFor="manual-name"
+						className="block text-sm font-medium text-gray-700 mb-1"
+					>
+						Name <span className="text-red-500">*</span>
+					</label>
+					<input
+						id="manual-name"
+						type="text"
+						value={name}
+						onChange={(e) => setName(e.target.value)}
+						placeholder="Item name"
+						required
+						className="w-full px-3 py-2 border border-gray-200 rounded-lg text-sm text-gray-900 placeholder-gray-400 focus:outline-none focus:ring-2 focus:ring-gray-400 focus:border-transparent"
+					/>
+				</div>
+
+				{/* Category */}
+				<div>
+					<label className="block text-sm font-medium text-gray-700 mb-1">
+						Category
+					</label>
+					<CategoryPicker
+						value={categoryId ?? 0}
+						onChange={(id) => setCategoryId(id)}
+					/>
+				</div>
+
+				{/* Weight and Price row */}
+				<div className="grid grid-cols-2 gap-3">
+					<div>
+						<label
+							htmlFor="manual-weight"
+							className="block text-sm font-medium text-gray-700 mb-1"
+						>
+							Weight (g)
+						</label>
+						<input
+							id="manual-weight"
+							type="number"
+							value={weightGrams}
+							onChange={(e) => setWeightGrams(e.target.value)}
+							placeholder="0"
+							min="0"
+							step="1"
+							className="w-full 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"
+						/>
+					</div>
+					<div>
+						<label
+							htmlFor="manual-price"
+							className="block text-sm font-medium text-gray-700 mb-1"
+						>
+							MSRP ($)
+						</label>
+						<input
+							id="manual-price"
+							type="number"
+							value={priceDollars}
+							onChange={(e) => setPriceDollars(e.target.value)}
+							placeholder="0.00"
+							min="0"
+							step="0.01"
+							className="w-full px-3 py-2 border border-gray-200 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-gray-400 focus:border-transparent"
+						/>
+					</div>
+				</div>
+
+				{/* Purchase Price */}
+				<div>
+					<label
+						htmlFor="manual-purchase-price"
+						className="block text-sm font-medium text-gray-700 mb-1"
+					>
+						Purchase Price ($)
+					</label>
+					<input
+						id="manual-purchase-price"
+						type="number"
+						value={purchasePrice}
+						onChange={(e) => setPurchasePrice(e.target.value)}
+						placeholder="0.00"
+						min="0"
+						step="0.01"
+						className="w-full 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"
+					/>
+				</div>
+
+				{/* Product URL */}
+				<div>
+					<label
+						htmlFor="manual-product-url"
+						className="block text-sm font-medium text-gray-700 mb-1"
+					>
+						Product Link
+					</label>
+					<input
+						id="manual-product-url"
+						type="url"
+						value={productUrl}
+						onChange={(e) => setProductUrl(e.target.value)}
+						placeholder="https://..."
+						className="w-full 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"
+					/>
+				</div>
+
+				{/* Notes */}
+				<div>
+					<label
+						htmlFor="manual-notes"
+						className="block text-sm font-medium text-gray-700 mb-1"
+					>
+						Notes
+					</label>
+					<textarea
+						id="manual-notes"
+						value={notes}
+						onChange={(e) => setNotes(e.target.value)}
+						placeholder="Optional notes..."
+						rows={3}
+						className="w-full 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 resize-none"
+					/>
+				</div>
+
+				{/* Image upload */}
+				<div>
+					<label className="block text-sm font-medium text-gray-700 mb-1">
+						Image
+					</label>
+					<ImageUpload
+						value={imageFilename}
+						onChange={(filename) => setImageFilename(filename)}
+					/>
+				</div>
+
+				{/* Error */}
+				{error && <p className="text-sm text-red-600">{error}</p>}
+
+				{/* Submit */}
+				<button
+					type="submit"
+					disabled={createItem.isPending || !name.trim() || categoryId === null}
+					className="w-full px-4 py-2.5 text-sm font-medium text-white bg-gray-900 rounded-lg hover:bg-gray-800 disabled:opacity-50 transition-colors"
+				>
+					{createItem.isPending ? "Saving..." : "Add to Collection"}
+				</button>
+			</form>
+		</div>
+	);
+}