Proposer Bid Reward [ENG-534] (#24)

proto/pob/auction/v1/genesis.proto

@@ -8,7 +8,9 @@ import "amino/amino.proto";
 option go_package = "github.com/skip-mev/pob/x/auction/types";
 
 // GenesisState defines the genesis state of the x/auction module.
-message GenesisState { Params params = 1 [ (gogoproto.nullable) = false ]; }
+message GenesisState {
+  Params params = 1 [(gogoproto.nullable) = false];
+}
 
 // Params defines the parameters of the x/auction module.
 message Params {
@@ -17,29 +19,42 @@ message Params {
   // max_bundle_size is the maximum number of transactions that can be bundled
   // in a single bundle.
   uint32 max_bundle_size = 1;
-  // escrow_account_address is the address of the account that will hold the
-  // funds for the auctions.
+
+  // escrow_account_address is the address of the account that will receive a
+  // portion of the bid proceeds.
   string escrow_account_address = 2;
+
   // reserve_fee specifies the bid floor for the auction.
   repeated cosmos.base.v1beta1.Coin reserve_fee = 3 [
-    (gogoproto.nullable) = false,
-    (amino.dont_omitempty) = true,
+    (gogoproto.nullable)     = false,
+    (amino.dont_omitempty)   = true,
     (gogoproto.castrepeated) = "github.com/cosmos/cosmos-sdk/types.Coins"
   ];
-  // min_buy_in_fee specifies the fee that the bidder must pay to enter the auction.
+
+  // min_buy_in_fee specifies the fee that the bidder must pay to enter the
+  // auction.
   repeated cosmos.base.v1beta1.Coin min_buy_in_fee = 4 [
-    (gogoproto.nullable) = false,
-    (amino.dont_omitempty) = true,
+    (gogoproto.nullable)     = false,
+    (amino.dont_omitempty)   = true,
     (gogoproto.castrepeated) = "github.com/cosmos/cosmos-sdk/types.Coins"
   ];
+
   // min_bid_increment specifies the minimum amount that the next bid must be
   // greater than the previous bid.
   repeated cosmos.base.v1beta1.Coin min_bid_increment = 5 [
-    (gogoproto.nullable) = false,
-    (amino.dont_omitempty) = true,
+    (gogoproto.nullable)     = false,
+    (amino.dont_omitempty)   = true,
     (gogoproto.castrepeated) = "github.com/cosmos/cosmos-sdk/types.Coins"
   ];
-  // front_running_protection specifies whether front running and sandwich attack protection
-  // is enabled.
+
+  // front_running_protection specifies whether front running and sandwich
+  // attack protection is enabled.
   bool front_running_protection = 6;
+
+  // proposer_fee defines the portion of the winning bid that goes to the block
+  // proposer that proposed the block.
+  string proposer_fee = 7 [
+    (gogoproto.nullable)   = false,
+    (gogoproto.customtype) = "github.com/cosmos/cosmos-sdk/types.Dec"
+  ];
 }