The EventFeed component was filtering events twice:
1. First in useEvents hook (backend query with event_types filter)
2. Then again in EventFeed component (client-side filter)
This caused filter issues where switching between filters would show
incorrect events (e.g., switching from SESSIONS to ALL would only show
session events).
Fixed by removing the duplicate client-side filter, as useEvents already
provides correctly filtered events from the backend.
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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>