feat(08-01): create StatusBadge component and wire into CandidateCard

- StatusBadge: clickable pill badge with popup menu (researching/ordered/arrived)
- Muted gray styling, LucideIcon per status, click-outside dismiss, Escape key support
- CandidateCard: status + onStatusChange props, StatusBadge in pill row after category
- Thread detail page: passes candidate.status and useUpdateCandidate for onStatusChange
- Fix Biome formatting for candidateStatusSchema enum

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

src/client/components/CandidateCard.tsx

@@ -2,6 +2,7 @@ import { useWeightUnit } from "../hooks/useWeightUnit";
 import { formatPrice, formatWeight } from "../lib/formatters";
 import { LucideIcon } from "../lib/iconData";
 import { useUIStore } from "../stores/uiStore";
+import { StatusBadge } from "./StatusBadge";
 
 interface CandidateCardProps {
 	id: number;
@@ -14,6 +15,8 @@ interface CandidateCardProps {
 	productUrl?: string | null;
 	threadId: number;
 	isActive: boolean;
+	status: "researching" | "ordered" | "arrived";
+	onStatusChange: (status: "researching" | "ordered" | "arrived") => void;
 }
 
 export function CandidateCard({
@@ -27,6 +30,8 @@ export function CandidateCard({
 	productUrl,
 	threadId,
 	isActive,
+	status,
+	onStatusChange,
 }: CandidateCardProps) {
 	const unit = useWeightUnit();
 	const openCandidateEditPanel = useUIStore((s) => s.openCandidateEditPanel);
@@ -106,6 +111,7 @@ export function CandidateCard({
 						/>{" "}
 						{categoryName}
 					</span>
+					<StatusBadge status={status} onStatusChange={onStatusChange} />
 				</div>
 				<div className="flex gap-2">
 					<button

src/client/components/StatusBadge.tsx

@@ -0,0 +1,103 @@
+import { useEffect, useRef, useState } from "react";
+import { LucideIcon } from "../lib/iconData";
+
+const STATUS_CONFIG = {
+	researching: { icon: "search", label: "Researching" },
+	ordered: { icon: "truck", label: "Ordered" },
+	arrived: { icon: "check", label: "Arrived" },
+} as const;
+
+type CandidateStatus = keyof typeof STATUS_CONFIG;
+
+interface StatusBadgeProps {
+	status: CandidateStatus;
+	onStatusChange: (status: CandidateStatus) => void;
+}
+
+export function StatusBadge({ status, onStatusChange }: StatusBadgeProps) {
+	const [isOpen, setIsOpen] = useState(false);
+	const containerRef = useRef<HTMLDivElement>(null);
+
+	const config = STATUS_CONFIG[status];
+
+	useEffect(() => {
+		if (!isOpen) return;
+
+		function handleClickOutside(e: MouseEvent) {
+			if (
+				containerRef.current &&
+				!containerRef.current.contains(e.target as Node)
+			) {
+				setIsOpen(false);
+			}
+		}
+
+		function handleEscape(e: KeyboardEvent) {
+			if (e.key === "Escape") {
+				setIsOpen(false);
+			}
+		}
+
+		document.addEventListener("mousedown", handleClickOutside);
+		document.addEventListener("keydown", handleEscape);
+		return () => {
+			document.removeEventListener("mousedown", handleClickOutside);
+			document.removeEventListener("keydown", handleEscape);
+		};
+	}, [isOpen]);
+
+	return (
+		<div ref={containerRef} className="relative">
+			<button
+				type="button"
+				onClick={(e) => {
+					e.stopPropagation();
+					setIsOpen((prev) => !prev);
+				}}
+				className="inline-flex items-center gap-1 px-2 py-0.5 rounded-full text-xs font-medium bg-gray-100 text-gray-600 hover:bg-gray-200 transition-colors cursor-pointer"
+			>
+				<LucideIcon name={config.icon} size={14} className="text-gray-500" />
+				{config.label}
+			</button>
+
+			{isOpen && (
+				<div className="absolute right-0 top-full mt-1 z-20 bg-white border border-gray-200 rounded-lg shadow-lg py-1 min-w-[150px]">
+					{(Object.keys(STATUS_CONFIG) as CandidateStatus[]).map((key) => {
+						const option = STATUS_CONFIG[key];
+						const isActive = key === status;
+						return (
+							<button
+								key={key}
+								type="button"
+								onClick={(e) => {
+									e.stopPropagation();
+									onStatusChange(key);
+									setIsOpen(false);
+								}}
+								className={`w-full flex items-center gap-2 px-3 py-1.5 text-sm text-left hover:bg-gray-50 transition-colors ${
+									isActive ? "bg-gray-50 font-medium" : ""
+								}`}
+							>
+								<LucideIcon
+									name={option.icon}
+									size={14}
+									className={isActive ? "text-gray-700" : "text-gray-400"}
+								/>
+								<span className={isActive ? "text-gray-900" : "text-gray-600"}>
+									{option.label}
+								</span>
+								{isActive && (
+									<LucideIcon
+										name="check"
+										size={14}
+										className="ml-auto text-gray-500"
+									/>
+								)}
+							</button>
+						);
+					})}
+				</div>
+			)}
+		</div>
+	);
+}