Bills soft-delete and are retained 30 days, but the only way back was the
transient "Undo" toast — dismiss it and a bill deleted an hour ago was
unrecoverable from the UI (even though the API and retention kept it).
- GET /api/bills/deleted lists soft-deleted bills still inside the recovery
window, newest first, with days_left (declared before /:id). User-scoped.
- BillsPage shows a "Recently deleted (N)" button when any exist, opening a
dialog to restore each one; restoring refreshes the active list too.
- The list fetch is non-blocking (never blanks the page); restore is
try/catch + toast; dialog has empty and per-row busy states.
Tests: tests/billsDeletedRoute.test.js (window filter, ordering, days_left,
money serialization, user isolation). Server 116 pass; client 46; build clean.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
aace5a4356