Feature: Leagues

Tied to journey: Create / join league.

Product acceptance criteria

• Commissioner can create a league
• League can be discoverable (browse) or unlisted (default TBD — see open decisions)
• Guests and signed-in users can browse discoverable league metadata
• Gated join: request-to-join (commissioner approve/decline) or invite code
• No one-tap open public join
• League settings editable by commissioner within defined bounds
• Clear membership list and role display

Implementation notes

• (invite token / deep link TBD)
• (Discover listing policy / feed TBD)