Function changelogSectionForVersion

apps/cli/src/release.ts:199–217

(version: string)

 *  body. Returns null when the section is missing so the caller can fall back
 *  to GitHub's auto-generated notes. */
const changelogSectionForVersion = async (version: string): Promise<string | null> => {
  const changelogPath = resolve(cliRoot, "CHANGELOG.md");
  if (!existsSync(changelogPath)) return null;
  const lines = (await readFile(changelogPath, "utf8")).split("\n");
  const start = lines.findIndex((line) => line.trim() === `## ${version}`);
  if (start === -1) return null;
  let end = lines.length;
  for (let i = start + 1; i < lines.length; i += 1) {
    if (/^## /.test(lines[i] ?? "")) {
      end = i;
      break;
    }
  }
  const body = lines
    .slice(start + 1, end)
    .join("\n")
    .trim();
  return body.length > 0 ? body : null;
};

const syncGitHubRelease = async (input: {
  readonly tag: string;