id: DATA-002A
title: Lazy Options Loading
status: backlog
priority: P0
effort: S
depends_on:
  - DATA-002
tags: [options, performance]
summary: Render the options page fast by loading only the minimum data initially.
acceptance_criteria:
  - Initial page load fetches expirations plus one default expiry chain.
  - Changing expiry fetches only that expiry on demand.
  - Browser test verifies /options becomes visible quickly with no visible runtime error.
technical_notes:
  - Keep initial render fast and move additional data loading behind user selection.