store proposal timing conf in the governor datum

agora/Agora/Governor.hs

@@ -37,6 +37,7 @@ import Agora.Proposal (
   ProposalId (ProposalId),
   ProposalThresholds,
  )
+import Agora.Proposal.Time (PProposalTimingConfig, ProposalTimingConfig)
 import Agora.SafeMoney (GTTag)
 import Agora.Utils (tclet)
 
@@ -66,6 +67,9 @@ data GovernorDatum = GovernorDatum
   -- ^ Gets copied over upon creation of a 'Agora.Proposal.ProposalDatum'.
   , nextProposalId :: ProposalId
   -- ^ What tag the next proposal will get upon creating.
+  , proposalTimings :: ProposalTimingConfig
+  -- ^ The timing configuration for proposals.
+  --   Will get copied over upon the creation of proposals.
   }
   deriving stock (Show, GHC.Generic)
 
@@ -118,6 +122,7 @@ newtype PGovernorDatum (s :: S) = PGovernorDatum
       ( PDataRecord
           '[ "proposalThresholds" ':= PProposalThresholds
            , "nextProposalId" ':= PProposalId
+           , "proposalTimings" ':= PProposalTimingConfig
            ]
       )
   }