Edge cases to plan for - Unconfirmed or conflicting legacy …

Edge cases to plan for
- Unconfirmed or conflicting legacy deposits: delay sweep or require manual review.
- Dust/OP_RETURN-heavy UTXOs: batch and consolidate off-peak; enforce floor amounts on bridge.
- Multi-sig/escrow: define BKDS context roles per participant (e.g., payer, payee, arb) and derive role-specific keys.
- Watch-only setups: replicate with BKDS by maintaining an app-side descriptor list of all active contexts.