Add CI workflow and fix workspace tests

packages/tui/test/truncated-text.test.ts

@@ -1,9 +1,12 @@
 import assert from "node:assert";
 import { describe, it } from "node:test";
-import chalk from "chalk";
+import { Chalk } from "chalk";
 import { TruncatedText } from "../src/components/truncated-text.js";
 import { visibleWidth } from "../src/utils.js";
 
+// Force full color in CI so ANSI assertions are deterministic
+const chalk = new Chalk({ level: 3 });
+
 describe("TruncatedText component", () => {
 	it("pads output lines to exactly match width", () => {
 		const text = new TruncatedText("Hello world", 1, 0);