Add settings manager, show changelog on startup if not shown yet.

packages/coding-agent/src/tui/dynamic-border.ts

@@ -0,0 +1,17 @@
+import type { Component } from "@mariozechner/pi-tui";
+import chalk from "chalk";
+
+/**
+ * Dynamic border component that adjusts to viewport width
+ */
+export class DynamicBorder implements Component {
+	private color: (str: string) => string;
+
+	constructor(color: (str: string) => string = chalk.blue) {
+		this.color = color;
+	}
+
+	render(width: number): string[] {
+		return [this.color("─".repeat(Math.max(1, width)))];
+	}
+}