Recurring payment scheduling UI

[truthixify]

Tier: L (1-2 weeks) Type: feature

Context

Spectre supports scheduled payments. Demo currently doesn't expose this. Add a flow that lets users set up "send X to Y every interval" entries.

Scope

• New page /schedule listing active schedules
• Form to create: recipient, amount, asset, interval (daily/weekly/monthly), end date
• Display next-run-time per schedule
• Pause/resume/cancel actions
• Persistence: client-side (localStorage) for demo, with note that production would use Spectre

Acceptance criteria

• Page + form + list
• Mock execution logic with next-run timer
• Playwright test for create-pause-resume flow

Files to start with

• New: src/pages/Schedule.tsx