Test: Override Handlers

What this tests:

The override: true option - allows multiple handlers with different priorities.

Current handlers:

• Handler 1: overridePriority: 1 (default) - Always active
• Handler 2: overridePriority: 2 - Toggle below

Expected behavior:

• Lower priority number runs first (1 before 2)
• Back → "Override Handler 1" dialog appears (priority 1)
• Only one handler runs per back navigation