refactor: rebuild desktop app with Tauri

scripts/release/generate-legacy-update.mjs

@@ -0,0 +1,77 @@
+import { createHash } from "node:crypto";
+import { stat, readFile, writeFile } from "node:fs/promises";
+import { basename, join, resolve } from "node:path";
+
+const assetSpecs = [
+  ["macos-arm64", ".tar.gz"],
+  ["macos-amd64", ".tar.gz"],
+  ["windows-amd64", ".zip"],
+  ["linux-amd64", ".tar.gz"],
+];
+
+function readOptions(args) {
+  const options = new Map();
+  for (let index = 0; index < args.length; index += 2) {
+    const name = args[index];
+    const value = args[index + 1];
+    if (!name?.startsWith("--") || value === undefined) {
+      throw new Error(`invalid argument near ${name ?? "end of command"}`);
+    }
+    options.set(name.slice(2), value);
+  }
+  return options;
+}
+
+function required(options, name) {
+  const value = options.get(name)?.trim();
+  if (!value) throw new Error(`--${name} is required`);
+  return value;
+}
+
+async function sha256(path) {
+  const content = await readFile(path);
+  return createHash("sha256").update(content).digest("hex");
+}
+
+async function main() {
+  const options = readOptions(process.argv.slice(2));
+  const version = required(options, "version").replace(/^v/, "");
+  const repository = required(options, "repository");
+  const assetsDir = resolve(required(options, "assets-dir"));
+  const output = resolve(required(options, "output"));
+  const releaseNotes = options.get("notes")?.trim() || `Cursor BYOK v${version}`;
+
+  if (!/^\d+\.\d+\.\d+(?:-[0-9A-Za-z.-]+)?$/.test(version)) {
+    throw new Error(`invalid semantic version: ${version}`);
+  }
+  if (!/^[^/\s]+\/[^/\s]+$/.test(repository)) {
+    throw new Error(`invalid GitHub repository: ${repository}`);
+  }
+
+  const platforms = {};
+  for (const [platform, suffix] of assetSpecs) {
+    const filename = `cursor-byok-${version}-${platform}${suffix}`;
+    const path = join(assetsDir, filename);
+    const info = await stat(path);
+    if (!info.isFile()) throw new Error(`release asset is not a file: ${path}`);
+    platforms[platform] = {
+      url: `https://github.com/${repository}/releases/download/v${version}/${basename(path)}`,
+      size: info.size,
+      checksum: `sha256:${await sha256(path)}`,
+    };
+  }
+
+  const manifest = {
+    version,
+    release_date: new Date().toISOString(),
+    release_notes: releaseNotes,
+    platforms,
+    mandatory: false,
+  };
+  await writeFile(output, `${JSON.stringify(manifest, null, 2)}\n`);
+}
+
+main().catch((error) => {
+  console.error(error instanceof Error ? error.message : String(error));
+  process.exitCode = 1;
+});