Directory listing for /docs/plans/

• 2026-03-05-web-client-reconnect-session-design.md
• 2026-03-05-web-client-reconnect-session-implementation.md
• 2026-03-05-web-client-system-theme-design.md
• 2026-03-05-web-client-system-theme-implementation.md
• 2026-03-19-card-game-helper-modernization-plan.md