initial commit

app/src/components/views/kanban-column.tsx

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+"use client";
+
+import { useDroppable } from "@dnd-kit/core";
+import { cn } from "@/lib/utils";
+import type { ReactNode } from "react";
+
+interface KanbanColumnProps {
+  id: string;
+  title: string;
+  color: string;
+  count: number;
+  children: ReactNode;
+}
+
+export function KanbanColumn({ id, title, color, count, children }: KanbanColumnProps) {
+  const { setNodeRef, isOver } = useDroppable({ id });
+
+  return (
+    <div
+      ref={setNodeRef}
+      className={cn(
+        "flex flex-col w-72 h-full rounded-lg bg-muted/50 transition-colors",
+        isOver && "bg-muted"
+      )}
+      data-testid={`kanban-column-${id}`}
+    >
+      {/* Column Header */}
+      <div className="flex items-center gap-2 p-3 border-b border-border">
+        <div className={cn("w-3 h-3 rounded-full", color)} />
+        <h3 className="font-medium text-sm flex-1">{title}</h3>
+        <span className="text-xs text-muted-foreground bg-background px-2 py-0.5 rounded-full">
+          {count}
+        </span>
+      </div>
+
+      {/* Column Content */}
+      <div className="flex-1 overflow-y-auto p-2 space-y-2">{children}</div>
+    </div>
+  );
+}