Offline Mode

Summary
Create and edit invoices without internet. Automatic sync when online. Visual indicator for unsynced items.

Acceptance Criteria

  • Create invoices offline.
  • Auto‑sync when online.
  • Show unsynced items clearly.
  • Access and edit existing invoices offline.

Examples

  • Construction site without reception.
  • Field engineer on remote site.
  • Rural tradesperson invoices on location; sync later.