chore: import upstream snapshot with attribution

scripts/check-api-surface.mjs

@@ -0,0 +1,34 @@
+#!/usr/bin/env node
+
+import { spawnSync } from "node:child_process";
+import path from "node:path";
+import { hasOption, optionArgs, optionValues } from "./lib/script-options.mjs";
+
+const repoRoot = process.cwd();
+const scriptArgs = process.argv.slice(2);
+const filters = optionValues(scriptArgs, "--filter");
+const skipBuild = hasOption(scriptArgs, "--skip-build");
+
+function run(command, args) {
+  const result = spawnSync(command, args, {
+    cwd: repoRoot,
+    stdio: "inherit",
+  });
+  if (result.status !== 0) {
+    process.exit(result.status ?? 1);
+  }
+}
+
+const buildFilterArgs = filters.length
+  ? optionArgs("--filter", filters)
+  : ["--filter", "./packages/*"];
+
+if (!skipBuild) {
+  run("pnpm", ["exec", "turbo", "build", "--force", ...buildFilterArgs]);
+}
+run("node", [
+  path.join("scripts", "generate-api-surface.mjs"),
+  "--check",
+  ...optionArgs("--filter", filters),
+]);
+run("pnpm", ["--filter", "@assistant-ui/api-surface", "check"]);