fix(odds): use update_interval as cache TTL and fix live game cache refresh (#268)

* fix(odds): use 2-minute cache for live games instead of 30 minutes

Live game odds were being cached for 30 minutes because the cache key
didn't trigger the odds_live cache strategy. Added is_live parameter
to get_odds() and include 'live' suffix in cache key for live games,
which triggers the existing odds_live strategy (2 min TTL).

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* fix(base-odds): Use interval as TTL for cache operations

- Pass interval variable as TTL to cache_manager.set() calls
- Ensures cache expires after update interval, preventing stale data
- Removes dead code by actually using the computed interval value

* refactor(base-odds): Remove is_live parameter from base class for modularity

- Remove is_live parameter from get_odds() method signature
- Remove cache key modification logic from base class
- Remove is_live handling from get_odds_for_games()
- Keep base class minimal and generic for reuse by other plugins
- Plugin-specific is_live logic moved to odds-ticker plugin override

---------

Co-authored-by: Chuck <chuck@example.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

src/base_classes/sports.py

@@ -415,7 +415,8 @@ class SportsCore(ABC):
                 sport=self.sport,
                 league=self.league,
                 event_id=game['id'],
-                update_interval_seconds=update_interval
+                update_interval_seconds=update_interval,
+                is_live=is_live
             )
             
             if odds_data: