siddharthd 859043f5a5 feat(shared): bidirectional split balance, credit direction, and multi-user view ...

- Rewrite participant balance to UNION both directions (they owe me + I owe them)
- Credits/refunds subtract from owed amount for correct net balance
- Allow secondary users to see transactions split with them
- Add participant balance cards with colour-coded owe direction
- Add inline AddParticipantForm with name + optional email

2026-03-14 20:06:13 +11:00

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page.tsx

feat(shared): bidirectional split balance, credit direction, and multi-user view

2026-03-14 20:06:13 +11:00