Weather Station API with Dual-Mode Wind Support

Endpoints:
  POST   /update                - Full weather data (temp, humidity, pressure, wind)
  POST   /wind/rapid            - Rapid wind-only updates (5-second interval)
  GET    /data                  - Get current weather + wind data
  GET    /wind                  - Get wind-specific data
  GET    /history               - Get 24h historical data
  GET    /history?hours=48      - Get custom hours of history
  GET    /logs                  - View system logs (HTML)
  GET    /logs/css              - Download logs page CSS
  GET    /stats                 - View storage statistics
  POST   /cleanup               - Manual cleanup trigger

Delete History:
  DELETE /history               - Delete ALL historical data
  DELETE /history/range         - Delete time range (body: {start_time, end_time})
  GET    /history/cleanup       - Keep last 24 hours (default)
  GET    /history/cleanup?hours=48 - Keep last 48 hours

Smart Storage System:
  FULL UPDATES:
    - Normal: 5-minute intervals (~288 writes/day)
    - Events: 30-second intervals during weather events
    - Stores complete historical snapshots

  WIND RAPID UPDATES:
    - 5-second interval (~17,280 updates/day)
    - Only updates current data (1 write per update)
    - NO historical storage (saves operations)
    - Total: ~17,500 operations/day (well under 100k limit!)

  Auto cleanup every 100 full updates