Live odds have missing selections (e.g. '1' key removed from Maç Sonucu
after kickoff), causing the AI model to produce wildly incorrect predictions
(e.g. 3.5% home win for Bristol City). Two guards added:
1. fetchOddsForMatches: Exclude live/finished matches from odds fetch query
2. processMatchOdds: Skip odds/lineups/sidelined overwrite if match already
has pre-match odds and is live/finished
fahricansecer