feat: init sproutclaw-web — Go+Gin backend + React frontend

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/components/chat/CompactionSummaryBlock.tsx

@@ -0,0 +1,15 @@
+import styles from "./CompactionSummaryBlock.module.css";
+
+interface CompactionSummaryBlockProps {
+	content: string;
+	label?: string;
+}
+
+export function CompactionSummaryBlock({ content, label = "上下文已压缩" }: CompactionSummaryBlockProps) {
+	return (
+		<details className={styles.summary}>
+			<summary className={styles.toggle}>{label}</summary>
+			<div className={styles.body}>{content}</div>
+		</details>
+	);
+}