- Replace simple icon-based signal display with WiFiSignalIndicator bars
- Add human-readable signal strength labels (Excellent, Good, Fair, Weak)
- Display dBm values in parentheses for technical reference
- Add comprehensive tests for signal strength UI integration
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
