chore(vendor): import pi 1.3.0

Imported as a linear vendor commit so forge rebases do not replay the upstream root tree.

git-subtree-dir: third_party/pi

git-subtree-split: 71023aec1546d6d677a65669c5665c0927ce0dd0

third_party/pi/packages/coding-agent/test/codemode-worker-config.test.ts

@@ -0,0 +1,21 @@
+import { describe, expect, test } from "vitest";
+import { resolveCodemodeWorkerSpecifier } from "../src/config.ts";
+
+describe("resolveCodemodeWorkerSpecifier", () => {
+	// Regression test for #10204.
+	test("uses a relative source entrypoint in Bun binaries", () => {
+		expect(resolveCodemodeWorkerSpecifier("bun-binary", "file:///B:/~BUN/root/config.js")).toBe(
+			"./src/extensions/codemode/worker.ts",
+		);
+	});
+
+	test("uses the emitted worker beside the bundled Node module", () => {
+		expect(resolveCodemodeWorkerSpecifier("bundled-node", "file:///app/chunks/config.js")).toEqual(
+			new URL("file:///app/chunks/codemode-worker.js"),
+		);
+	});
+
+	test("uses the pi-codemode worker when unbundled", () => {
+		expect(resolveCodemodeWorkerSpecifier("unbundled", import.meta.url)).toBeUndefined();
+	});
+});