feat(mobile): mobile cards for reminders, audit log, users

Three new <EntityCard> files using the shared <ListCard> shell, wired
into each list page's <DataTable> via cardRender.

  - ReminderCard:   Bell icon, related-entity subtitle (User/Anchor/
                    FileText icon by entity type), due-date meta with
                    past-due flag, accent bar (rose=past-due,
                    amber=pending, slate=snoozed, emerald=done).
                    Snooze/Complete/Edit/Delete in actions menu.
  - AuditLogCard:   Action icon (Plus/Pencil/Trash2/Eye), entity
                    title, "{verb} by {actor}" subtitle, timestamp
                    meta, optional changed-field chip line. Accent
                    bar by action (created=emerald, updated=blue,
                    deleted=rose). Immutable, no actions menu.
  - UserCard:       Initials avatar, displayName/email, role meta
                    (Shield icon), last-login distance, "Inactive"
                    pill when deactivated. Accent bar (violet=
                    super_admin, slate=inactive, none=active).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/admin/audit/audit-log-card.tsx

@@ -0,0 +1,151 @@
+'use client';
+
+import { Activity, Clock, Eye, Pencil, Plus, Trash2, User } from 'lucide-react';
+import { formatDistanceToNow } from 'date-fns';
+
+import { ListCard, ListCardAvatar, ListCardMeta } from '@/components/shared/list-card';
+import { cn } from '@/lib/utils';
+
+interface AuditEntry {
+  id: string;
+  userId: string | null;
+  action: string;
+  entityType: string;
+  entityId: string | null;
+  fieldChanged: string | null;
+  oldValue: Record<string, unknown> | null;
+  newValue: Record<string, unknown> | null;
+  metadata: Record<string, unknown> | null;
+  ipAddress: string | null;
+  createdAt: string;
+  actor: { id: string; email: string; name: string } | null;
+}
+
+const ACTION_ACCENT: Record<string, string> = {
+  create: 'bg-emerald-400',
+  update: 'bg-blue-400',
+  delete: 'bg-rose-400',
+  viewed: 'bg-slate-300',
+};
+
+const ACTION_BADGE_COLORS: Record<string, string> = {
+  create: 'bg-green-600',
+  update: 'bg-blue-500',
+  delete: 'bg-red-600',
+  archive: 'bg-orange-500',
+  restore: 'bg-teal-500',
+  login: 'bg-gray-500',
+  permission_denied: 'bg-red-800',
+  merge: 'bg-purple-500',
+  revert: 'bg-amber-500',
+};
+
+function ActionIcon({ action }: { action: string }) {
+  if (action === 'create') return <Plus className="h-5 w-5" />;
+  if (action === 'update') return <Pencil className="h-5 w-5" />;
+  if (action === 'delete') return <Trash2 className="h-5 w-5" />;
+  if (action === 'viewed') return <Eye className="h-5 w-5" />;
+  return <Activity className="h-5 w-5" />;
+}
+
+function actionVerb(action: string): string {
+  const map: Record<string, string> = {
+    create: 'Created',
+    update: 'Updated',
+    delete: 'Deleted',
+    archive: 'Archived',
+    restore: 'Restored',
+    login: 'Logged in',
+    permission_denied: 'Permission denied',
+    merge: 'Merged',
+    revert: 'Reverted',
+    viewed: 'Viewed',
+  };
+  return map[action] ?? action.charAt(0).toUpperCase() + action.slice(1);
+}
+
+interface AuditLogCardProps {
+  entry: AuditEntry;
+}
+
+export function AuditLogCard({ entry }: AuditLogCardProps) {
+  const accentClass = ACTION_ACCENT[entry.action] ?? 'bg-slate-300';
+  const badgeColor = ACTION_BADGE_COLORS[entry.action] ?? 'bg-gray-500';
+
+  const entityTitle = `${entry.entityType.charAt(0).toUpperCase()}${entry.entityType.slice(1)}${
+    entry.entityId ? ` ${entry.entityId.slice(0, 8)}…` : ''
+  }`;
+
+  const actorName = entry.actor?.name ?? (entry.userId ? `${entry.userId.slice(0, 8)}…` : 'system');
+
+  // Changed-fields chip line: prefer fieldChanged (single field), then newValue keys
+  let changedFields: string[] = [];
+  if (entry.fieldChanged) {
+    changedFields = [entry.fieldChanged];
+  } else if (entry.newValue) {
+    changedFields = Object.keys(entry.newValue);
+  }
+  const visibleFields = changedFields.slice(0, 3);
+  const overflowCount = changedFields.length - visibleFields.length;
+
+  return (
+    <ListCard
+      href="#"
+      ariaLabel={`Audit: ${actionVerb(entry.action)} ${entityTitle}`}
+      accentClassName={accentClass}
+    >
+      <div className="flex items-start gap-3">
+        <ListCardAvatar icon={<ActionIcon action={entry.action} />} />
+        <div className="min-w-0 flex-1">
+          {/* Title: entity type + short ID */}
+          <h3 className="truncate text-base font-semibold tracking-tight text-foreground">
+            {entityTitle}
+          </h3>
+
+          {/* Subtitle: action verb + actor */}
+          <p className="mt-0.5 inline-flex items-center gap-1 truncate text-sm text-muted-foreground">
+            <User className="h-3.5 w-3.5 shrink-0 text-muted-foreground/70" aria-hidden />
+            <span className="truncate">
+              {actionVerb(entry.action)} by {actorName}
+            </span>
+          </p>
+
+          {/* Timestamp meta line */}
+          <div className="mt-1 flex flex-wrap items-center gap-x-2 gap-y-0.5 text-xs text-muted-foreground">
+            <ListCardMeta icon={<Clock className="h-3 w-3" />}>
+              {formatDistanceToNow(new Date(entry.createdAt), { addSuffix: true })}
+            </ListCardMeta>
+          </div>
+
+          {/* Action badge + changed-fields chips */}
+          <div className="mt-1.5 flex flex-wrap items-center gap-x-2 gap-y-1">
+            <span
+              className={cn(
+                'inline-flex items-center rounded-full px-2 py-0.5 text-xs font-medium text-white',
+                badgeColor,
+              )}
+            >
+              {entry.action}
+            </span>
+
+            {visibleFields.length > 0 ? (
+              <>
+                {visibleFields.map((field) => (
+                  <span
+                    key={field}
+                    className="inline-flex items-center rounded-full bg-secondary px-2 py-0.5 text-xs text-secondary-foreground"
+                  >
+                    {field}
+                  </span>
+                ))}
+                {overflowCount > 0 ? (
+                  <span className="text-xs text-muted-foreground">+{overflowCount}</span>
+                ) : null}
+              </>
+            ) : null}
+          </div>
+        </div>
+      </div>
+    </ListCard>
+  );
+}