Improve post-race status transition and "Race B" activity logic

Feedback/Issue: I am experiencing a consistent issue where the system fails to correctly transition from "pre-race preparation" to "post-race recovery" after completing a planned B-priority race.

Description: Even when a workout is correctly linked to a scheduled B-priority race event in the calendar, the system continues to display pre-race advice (e.g., "this is the final key workout before the race") and ignores that the race has been completed.

Impact:

• The automated coaching notes provide irrelevant, pre-race guidance even after the race is finished.

• It fails to recognize the activity as the "goal" event, leading to confusion in the recovery phase analysis.

• The system treats the post-race fatigue purely as unexpected training stress rather than a planned recovery requirement following a specific race event.

Suggestion: It would be highly beneficial if the system could trigger a "Post-Race Analysis" mode immediately upon marking the race activity as completed. The system should automatically shift from pre-race warnings to post-race recovery/adaptation mode once the event is marked as finished.