Clean up ESP32 logging
Remove verbose debug output:
- HTTP request URLs and response codes
- JSON parse error details
- Session refresh messages
- Individual item counts during sync
Keep useful logs:
- Startup and connection status
- Button press actions and results
- Sync completion summaries
- Error conditions
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>