## Story 004: Review weekly and all-time history

**Persona:** Jasmine, 26, a student and freelancer who is using the Pomodoro method to build a consistent work habit. She wants to see her improvement over time.

**Situation:**

It's Sunday evening and Jasmine wants to look back at the week — how many sessions did she do? Did this week improve over last week? She opens the history view.

**Need:**

As Jasmine, I want to see my session history by day (this week) and in aggregate (all-time), so that I can spot my own patterns and feel the progress of building a habit.

**Acceptance:**
- A 'history' or 'stats' view shows the past 7 days as a list or bar chart (sessions per day)
- All-time cumulative stats are visible (total sessions, total focus time, average sessions per week)
- Clicking a day shows detail (sessions completed, breaks skipped, average session vs. break duration)
- The view is readable on the device's natural viewport (no truncation or tiny numbers)

**Tier:** core

**Confusion-flags:**
- Does Jasmine want to see the data as numbers, a chart, or both? The directive doesn't specify visualization. This matters for whether she'll actually use the view or ignore it.
