Function uniqueDcrSlug

packages/core/sdk/src/oauth-service.ts:472–478

(slug: OAuthClientSlug, taken: ReadonlySet<string>)

 *  DCR candidates, appending `-2`, `-3`, … so a new client never collides with
 *  (and clobbers, via createClient's delete-then-create) an existing one. */
const uniqueDcrSlug = (slug: OAuthClientSlug, taken: ReadonlySet<string>): OAuthClientSlug => {
  const base = String(slug);
  if (!taken.has(base)) return slug;
  let suffix = 2;
  while (taken.has(`${base}-${suffix}`)) suffix += 1;
  return OAuthClientSlug.make(`${base}-${suffix}`);
};

const parseOAuthClientOrigin = (row: {
  readonly slug?: unknown;