Function setPlanSlug

src/utils/plans.ts:54–56

(sessionId: SessionId, slug: string)

 * Set a specific plan slug for a session (used when resuming a session)
 */
export function setPlanSlug(sessionId: SessionId, slug: string): void {
  getPlanSlugCache().set(sessionId, slug)
}

/**
 * Clear the plan slug for the current session.