feat: Oracle Safety Valve with DAO manual rate override (Issue #102)#256
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mgtmdccix-oss wants to merge 1 commit intoGrant-Stream:mainfrom
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feat: Oracle Safety Valve with DAO manual rate override (Issue #102)#256mgtmdccix-oss wants to merge 1 commit intoGrant-Stream:mainfrom
mgtmdccix-oss wants to merge 1 commit 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
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Closes #215
Summary
If the Price Oracle stops responding, inflation protection could freeze funds. This PR implements a Manual Safety Valve so the protocol remains antifragile.
Changes
oracle_heartbeat()— oracle signals liveness by recording a timestamppropose_safety_rate()— any DAO member can propose a manual exchange rate after 48 hours of oracle silencevote_on_safety_rate()— weighted DAO vote with double-vote protectionexecute_safety_rate()— applies the rate if 90% supermajority is reached after the voting window closes; re-checks oracle is still silent at execution timeget_exchange_rate()— returns the manual rate, or(1, 1)if none is setNew types & storage
SafetyVoteProposalstruct +SafetyVoteStatusenumDataKeyvariants:OracleLastHeartbeat,SafetyVoteProposal,SafetyVoteVote,ManualExchangeRate, etc.Tests (
test_oracle_safety_valve.rs)Labels
securityreliabilitylogic