feat: Clean Ledger — finalize_and_purge with cleanup bounty#257
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mgtmdccix-oss wants to merge 2 commits intoGrant-Stream:mainfrom
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feat: Clean Ledger — finalize_and_purge with cleanup bounty#257mgtmdccix-oss wants to merge 2 commits intoGrant-Stream:mainfrom
mgtmdccix-oss wants to merge 2 commits intoGrant-Stream:mainfrom
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…ant-Stream#102) - oracle_heartbeat(): oracle signals liveness, records timestamp - propose_safety_rate(): DAO member opens vote after 48h oracle silence - vote_on_safety_rate(): weighted DAO vote with double-vote protection - execute_safety_rate(): applies rate on 90% supermajority after voting ends - get_exchange_rate(): returns manual rate or (1,1) fallback - Added SafetyVoteProposal struct, SafetyVoteStatus enum, DataKey variants, error codes 304-309, and constants for timeouts/thresholds - Tests: heartbeat blocks proposal, full flow, rejection below 90%, oracle recovery blocks execution
Implements the Clean Ledger / Social Cleanup bounty logic: - Any caller can invoke finalize_and_purge() on a 100%-completed grant - Removes the grant's storage entry to reduce Stellar state bloat - Pays caller a small bounty (5 bps of the platform fee) from treasury - Guards: status must be Completed and remaining_balance must be zero - Emits a 'purged' event for off-chain indexers Closes: optimization/economics label issue
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Closes #220
Summary
Implements the Clean Ledger / Social Cleanup bounty incentive to prevent zombie contracts and reduce Stellar state bloat.
What changed
contracts/grant_contracts/src/cleanup_bounty.rscontracts/grant_contracts/src/lib.rs— registered the new module and removed a duplicatepub mod temporal_guardHow it works
finalize_and_purge(env, grant_id, caller)— permissionless, any address can call it:status == Completedandremaining_balance == 0total_amount × platform_fee_bps / 10_000 × 5 / 10_000(0.05% of the platform fee)env.storage().instance().remove()— frees the ledger entrypurgedeventEconomics
CLEANUP_BOUNTY_BPSLabels
optimizationeconomicslogic