## Summary
- **Group stage match list**: Removed MD 1/2/3 headings; matches now listed chronologically under date separators (e.g. "Jun 14"). Kick-off time appears below the team names instead of between them.
- **Sort order**: \`findMatchesByGroupIds\` / \`findMatchesByEventId\` now order by \`scheduledAt ASC NULLS LAST\` so unscheduled matches always trail scheduled ones.
- **Groups/Bracket toggle**: When both group stage and knockout bracket exist, a toggle appears (mirroring the NBA/AFL standings toggle). Sports with both regular-season standings and a group stage get all views available.
- **Upcoming events**: \`getUpcomingEventsForDraftedParticipants\` now also queries \`groupStageMatches\`, so World Cup group fixtures appear on the home page calendar sorted by kick-off time with a label like "Group A — France vs Germany".
- **\`isAllCompete\` fix**: \`UpcomingEventsCard\` and \`UpcomingCalendarPanel\` now treat \`group_stage_match\` as a bracket-style event, showing team badges instead of "N of your picks".
Fixes#53
## Test plan
- [ ] Navigate to a World Cup sports season page — groups should be listed chronologically under date headers with no MD labels; kick-off time should appear below each match row
- [ ] Once the knockout bracket has matches, confirm the Groups/Bracket toggle appears and both views render correctly
- [ ] On the home page, a user with drafted World Cup participants should see upcoming group fixtures in the calendar panel with individual team badges (not a participant count)
- [ ] NBA/AFL/NHL pages unaffected — their standings/playoffs/finished toggle still works normally
- [ ] \`npm run typecheck\` and \`npm run test:run\` pass
Co-authored-by: Chris Parsons <chrisparsons1127@gmail.com>
Reviewed-on: #55
chrisp
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