code-review-fix task 10.1: create ErrorBoundary component with fallback UI

src/components/ErrorBoundary.tsx

@@ -0,0 +1,66 @@
+"use client";
+
+import React, { Component, ErrorInfo, ReactNode } from "react";
+import { Button } from "@/components/ui/button";
+
+interface Props {
+  children: ReactNode;
+}
+
+interface State {
+  hasError: boolean;
+  error: Error | null;
+}
+
+class ErrorBoundary extends Component<Props, State> {
+  constructor(props: Props) {
+    super(props);
+    this.state = { hasError: false, error: null };
+  }
+
+  static getDerivedStateFromError(error: Error): State {
+    return { hasError: true, error };
+  }
+
+  componentDidCatch(error: Error, errorInfo: ErrorInfo): void {
+    console.error("ErrorBoundary caught an error:", error, errorInfo);
+  }
+
+  handleTryAgain = (): void => {
+    this.setState({ hasError: false, error: null });
+  };
+
+  handleReload = (): void => {
+    window.location.reload();
+  };
+
+  render(): ReactNode {
+    if (this.state.hasError) {
+      return (
+        <div className="flex min-h-screen flex-col items-center justify-center gap-6 p-8 text-center">
+          <div className="flex flex-col items-center gap-3">
+            <h2 className="text-2xl font-semibold text-destructive">
+              Something went wrong
+            </h2>
+            {this.state.error && (
+              <p className="max-w-md text-sm text-muted-foreground">
+                {this.state.error.message}
+              </p>
+            )}
+          </div>
+          <div className="flex gap-3">
+            <Button variant="outline" onClick={this.handleTryAgain}>
+              Try Again
+            </Button>
+            <Button onClick={this.handleReload}>Reload</Button>
+          </div>
+        </div>
+      );
+    }
+
+    return this.props.children;
+  }
+}
+
+export { ErrorBoundary };
+export default ErrorBoundary;