Refill round: 8 owner-authorized retries all accepted; bank now 200 (100L/100R) with full attempt log (#298)

accepted_bank_complete: reviewed ledger (192 usable / 8 unusable), accepted bank, review evidence (#298)

Candidate grid complete: all 200 candidate videos + final ledger + receipts, pre-exclusion (#298)

Canary phase: 8 canary videos, ledger, receipts, review sheets (#298)

initial commit