Add aircraft total to loot screen (ADS-B tracking + server-side deduped count)

[FusedStamen]

What this does

Adds ADS-B aircraft tracking to the loot database and loot screen.

Changes

loot_manager.py

• New save_adsb_aircraft() method — appends to adsb_aircraft.csv per session, deduped by ICAO within session, consistent with existing bt_devices/wardriving patterns
• _scan_session_dir now counts adsb_aircraft.csv entries
• _recalc_totals and _rebuild_db include adsb key for cross-session accumulation

app.py

• aircraft_new event handler now calls loot.save_adsb_aircraft() for each new unique ICAO, capturing position, altitude, speed and heading
• _load_loot_totals includes adsb key
• Loot screen ALL-TIME column shows Aircraft count — prefers server-side deduped total from wardrive plugin (_user_stats["aircraft"]), falls back to local count
• Loot screen THIS SESSION column shows live aircraft count for current session

Notes

• adsb_aircraft.csv format matches what wardrive_upload.py already expects for upload, so existing sessions with that file will be picked up automatically
• Server-side count takes priority in the display so the number stays consistent with what wdgwars.pl reports

[FusedStamen]

also fixed - upload timeout false failure (wardrive_upload)

Problem

Large sessions with many ADS-B records could exceed the 30s upload timeout.
The upload succeeded server-side but the client got a timeout error, logged
it as failed, and left the session unmarked — causing duplicate re-uploads
on retry which the server correctly rejected as "already seen".

Fix

• Bumped upload timeout from 30s to 90s on both main upload and rate-limit retry
• Added specific TimeoutError/OSError handler that marks the session as uploaded
  with a warning instead of silently failing — prevents duplicate re-sends when
  the server received the data but the response timed out