feat(admin): add PageHeader, StatusPill, EmptyState, CardList, StickyActionBar

src/components/admin/CardList.tsx

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+import { ReactNode } from "react";
+
+interface CardListProps {
+  children: ReactNode;
+  ariaLabel?: string;
+}
+
+export function CardList({ children, ariaLabel }: CardListProps) {
+  return (
+    <ul role="list" aria-label={ariaLabel} className="space-y-3 px-4 pb-24">
+      {children}
+    </ul>
+  );
+}
+
+interface CardListItemProps {
+  onClick?: () => void;
+  href?: string;
+  children: ReactNode;
+  as?: "li" | "div";
+}
+
+export function CardListItem({ onClick, href, children, as = "li" }: CardListItemProps) {
+  const content = (
+    <div
+      className="rounded-2xl p-4 transition-colors"
+      style={{
+        backgroundColor: "var(--color-surface-2)",
+        minHeight: "72px",
+        boxShadow: "0 1px 2px rgba(0,0,0,0.04)",
+      }}
+    >
+      {children}
+    </div>
+  );
+
+  if (href) {
+    return (
+      <li>
+        <a href={href} className="block active:scale-[0.99] transition-transform" style={{ minHeight: "72px" }}>
+          {content}
+        </a>
+      </li>
+    );
+  }
+  if (onClick) {
+    return (
+      <li>
+        <button
+          type="button"
+          onClick={onClick}
+          className="block w-full text-left active:scale-[0.99] transition-transform"
+          style={{ minHeight: "72px" }}
+        >
+          {content}
+        </button>
+      </li>
+    );
+  }
+  return <li>{content}</li>;
+}

src/components/admin/PageHeader.tsx

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+import { ReactNode } from "react";
+
+interface PageHeaderProps {
+  title: string;
+  subtitle?: string;
+  actions?: ReactNode;
+}
+
+export function PageHeader({ title, subtitle, actions }: PageHeaderProps) {
+  return (
+    <header className="px-4 pt-6 pb-4 flex items-start justify-between gap-4">
+      <div>
+        <h1 className="text-display font-display" style={{ fontWeight: 600, lineHeight: 1.15, letterSpacing: "-0.01em" }}>
+          {title}
+        </h1>
+        {subtitle && (
+          <p className="text-mono mt-1" style={{ color: "var(--color-text-muted)" }}>{subtitle}</p>
+        )}
+      </div>
+      {actions && <div className="flex items-center gap-2 shrink-0">{actions}</div>}
+    </header>
+  );
+}
+
+export default PageHeader;

src/components/admin/StatusPill.tsx

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+export type StatusKind = "placed" | "ready" | "picked-up" | "cancelled" | "scheduled" | "in-transit" | "completed" | "low" | "out" | "in-stock" | "hidden";
+
+const STATUS_MAP: Record<StatusKind, { bg: string; fg: string; label: string }> = {
+  placed:       { bg: "var(--color-info-soft)",     fg: "var(--color-info)",     label: "Placed" },
+  ready:        { bg: "var(--color-warning-soft)",  fg: "var(--color-warning)",  label: "Ready" },
+  "picked-up":  { bg: "var(--color-success-soft)",  fg: "var(--color-success)",  label: "Picked up" },
+  cancelled:    { bg: "var(--color-surface-2)",     fg: "var(--color-text-muted)", label: "Cancelled" },
+  scheduled:    { bg: "var(--color-info-soft)",     fg: "var(--color-info)",     label: "Scheduled" },
+  "in-transit": { bg: "var(--color-warning-soft)",  fg: "var(--color-warning)",  label: "In transit" },
+  completed:    { bg: "var(--color-success-soft)",  fg: "var(--color-success)",  label: "Completed" },
+  low:          { bg: "var(--color-warning-soft)",  fg: "var(--color-warning)",  label: "Low stock" },
+  out:          { bg: "var(--color-danger-soft)",   fg: "var(--color-danger)",   label: "Out" },
+  "in-stock":   { bg: "var(--color-success-soft)",  fg: "var(--color-success)",  label: "In stock" },
+  hidden:       { bg: "var(--color-surface-2)",     fg: "var(--color-text-muted)", label: "Hidden" },
+};
+
+interface StatusPillProps {
+  status: StatusKind;
+  label?: string;
+}
+
+export function StatusPill({ status, label }: StatusPillProps) {
+  const cfg = STATUS_MAP[status];
+  return (
+    <span
+      className="inline-flex items-center px-2.5 py-1 rounded-full text-label font-semibold"
+      style={{ backgroundColor: cfg.bg, color: cfg.fg, letterSpacing: "0.02em", minHeight: "24px" }}
+      aria-label={cfg.label}
+    >
+      {label ?? cfg.label}
+    </span>
+  );
+}
+
+export default StatusPill;

src/components/admin/StickyActionBar.tsx

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+import { ReactNode } from "react";
+
+interface StickyActionBarProps {
+  children: ReactNode;
+  pendingSync?: boolean;
+}
+
+export function StickyActionBar({ children, pendingSync = false }: StickyActionBarProps) {
+  return (
+    <div
+      className="fixed left-0 right-0 z-20 px-4 py-3 border-t"
+      style={{
+        bottom: "60px", // sits above the mobile tab bar
+        backgroundColor: "var(--color-bg)",
+        borderColor: "var(--color-surface-3)",
+        boxShadow: "0 -4px 12px rgba(0,0,0,0.04)",
+      }}
+    >
+      {pendingSync && (
+        <div className="text-label font-semibold mb-2 flex items-center gap-2" style={{ color: "var(--color-text-muted)" }}>
+          <span className="inline-block w-3 h-3 rounded-full animate-pulse" style={{ backgroundColor: "var(--color-warning)" }} />
+          Pending sync
+        </div>
+      )}
+      {children}
+    </div>
+  );
+}
+
+export default StickyActionBar;