## Story 007: Export or migrate session history

**Persona:** Riley, 35, a consultant who has been tracking with another app and wants to try the Pomodoro tracker without losing her data, or wants a backup of her history.

**Situation:**

Riley has 200+ sessions logged in another tool. She'd like to move to this app but wants her history intact, or at minimum, a way to export it as a backup.

**Need:**

As Riley, I want to export my session history as a CSV or JSON file, so that I can back up my data or migrate to another tool without losing my history.

**Acceptance:**
- An export button in settings generates a machine-readable file (CSV or JSON) of all sessions
- The exported file includes session date, start time, duration, break duration, and any user-set durations

**Tier:** fast-follow

**Confusion-flags:**
- Is import (from another tool) also in scope? Or only export? The directive doesn't mention it, so I'm assuming fast-follow at best.
