Sergei 1e9ebd14ff Add sensor setup analytics tracking
Implemented comprehensive analytics system for tracking sensor setup process
including scan events, setup steps, and completion metrics.

Features:
- Analytics service with event tracking for sensor setup
- Metrics calculation (success rate, duration, common errors)
- Integration in add-sensor and setup-wifi screens
- Tracks: scan start/complete, setup start/complete, individual steps,
  retries, skips, and cancellations
- Comprehensive test coverage

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2026-01-31 16:20:48 -08:00
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