| T4-01 | Open actionable items page | Pending items load by default | |
| T4-02 | Filter by pending, completed, all | Correct subset returned each time | |
| T4-03 | Open actionable count endpoint | Count matches pending list total | |
| T4-04 | Complete one item | Item marked completed with timestamp; pending count decreases | |
| T4-05 | Complete all items | All pending items marked completed | |
| T4-06 | Complete already completed item | No crash; state remains consistent | |
| T4-07 | Cross-user data isolation check | User cannot see/complete another user's items | |
| T4-08 | Sidebar badge count | Badge reflects pending count changes after complete actions | |