feat: add bsk CLI auto update

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/render-version-json.test.mjs

@@ -0,0 +1,52 @@
+import assert from "node:assert/strict";
+import { createHash } from "node:crypto";
+import { mkdirSync, mkdtempSync, readFileSync, writeFileSync } from "node:fs";
+import { tmpdir } from "node:os";
+import { dirname, join } from "node:path";
+import { fileURLToPath } from "node:url";
+import { execFileSync } from "node:child_process";
+import test from "node:test";
+
+const scriptDir = dirname(fileURLToPath(import.meta.url));
+const scriptPath = join(scriptDir, "render-version-json.mjs");
+
+test("renders asset URLs with sha256 checksums from dist files", () => {
+  const tmp = mkdtempSync(join(tmpdir(), "bsk-version-json-"));
+  const dist = join(tmp, "dist");
+  const out = join(tmp, "version.json");
+  const version = "9.8.7";
+  const archive = `bsk-v${version}-aarch64-apple-darwin.tar.gz`;
+  const archiveBytes = Buffer.from("fake darwin arm64 archive\n");
+  mkdirSync(dist);
+  writeFileSync(join(dist, archive), archiveBytes);
+  writeFileSync(join(dist, `bsk-v${version}-x86_64-apple-darwin.tar.gz`), "darwin x64\n");
+  writeFileSync(
+    join(dist, `bsk-v${version}-x86_64-unknown-linux-musl.tar.gz`),
+    "linux x64\n",
+  );
+  writeFileSync(
+    join(dist, `bsk-v${version}-aarch64-unknown-linux-musl.tar.gz`),
+    "linux arm64\n",
+  );
+  writeFileSync(join(dist, `bsk-v${version}-x86_64-pc-windows-msvc.zip`), "windows x64\n");
+
+  execFileSync(process.execPath, [
+    scriptPath,
+    "--version",
+    version,
+    "--repo",
+    "Tencent/BrowserSkill",
+    "--dist",
+    dist,
+    "--out",
+    out,
+  ]);
+
+  const manifest = JSON.parse(readFileSync(out, "utf8"));
+  const expectedSha = createHash("sha256").update(archiveBytes).digest("hex");
+  assert.equal(
+    manifest.assets["darwin-arm64"].url,
+    `https://github.com/Tencent/BrowserSkill/releases/download/cli-v${version}/${archive}`,
+  );
+  assert.equal(manifest.assets["darwin-arm64"].sha256, expectedSha);
+});