Initial commit: Port Nimara CRM (Layers 0-4)

Full CRM rebuild with Next.js 15, TypeScript, Tailwind, Drizzle ORM,
PostgreSQL, Redis, BullMQ, MinIO, and Socket.io. Includes 461 source
files covering clients, berths, interests/pipeline, documents/EOI,
expenses/invoices, email, notifications, dashboard, admin, and
client portal. CI/CD via Gitea Actions with Docker builds.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/components/shared/empty-state.tsx

@@ -0,0 +1,44 @@
+import { type ReactNode, type ElementType } from 'react';
+import { cn } from '@/lib/utils';
+import { Button } from '@/components/ui/button';
+
+interface EmptyStateProps {
+  icon?: ElementType;
+  title: string;
+  description?: string;
+  action?: {
+    label: string;
+    onClick: () => void;
+  };
+  className?: string;
+}
+
+/**
+ * Centered empty-state pattern with icon, title, description, and optional CTA.
+ * Used when a list or table has no data.
+ */
+export function EmptyState({ icon: Icon, title, description, action, className }: EmptyStateProps) {
+  return (
+    <div
+      className={cn(
+        'flex flex-col items-center justify-center text-center py-16 px-4',
+        className,
+      )}
+    >
+      {Icon && (
+        <div className="w-12 h-12 rounded-full bg-muted flex items-center justify-center mb-4">
+          <Icon className="w-6 h-6 text-muted-foreground" />
+        </div>
+      )}
+      <h3 className="text-base font-semibold text-foreground mb-1">{title}</h3>
+      {description && (
+        <p className="text-sm text-muted-foreground max-w-sm mb-4">{description}</p>
+      )}
+      {action && (
+        <Button onClick={action.onClick} size="sm">
+          {action.label}
+        </Button>
+      )}
+    </div>
+  );
+}