chore(vendor): import pi 0.85.1

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: d981de1229ef899957bbe968bc8dcda02a21f477

third_party/pi/packages/protocol/vitest.config.ts

@@ -0,0 +1,11 @@
+import { defineConfig } from "vitest/config";
+
+export default defineConfig({
+	test: {
+		globals: true,
+		environment: "node",
+		reporters: process.env.GITHUB_ACTIONS ? ["dot", "github-actions"] : ["dot"],
+	},
+	resolve: { conditions: ["source"] },
+	ssr: { resolve: { conditions: ["source"] } },
+});