Add deploy script for demo contract

.env.example

@@ -11,6 +11,7 @@ NODE_3_ADDRESS="0x3c44cdddb6a900fa2b585dd299e03d12fa4293bc"
 ORACLE_FACTORY_ADDRESS="0xd0763A3730972dC880b525B5490541d5621EdeC2"
 DKG_FACTORY_ADDRESS="0xc84983B3D1338DfB08c9c539bEc01ebcaeD7e5D6"
 DKG_ADDRESS="0x83bd914F8fDD118Cb840DAcE1644CA5aEEC4259b"
+ORACLE_ADDRESS="0x0"
 
 # The private key of the first account generated by anvil
 PRIVATE_KEY=0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80

script/BaseScript.s.sol

@@ -16,6 +16,10 @@ abstract contract BaseScript is Script {
         return vm.envAddress("DKG_FACTORY_ADDRESS");
     }
 
+    function getOracleInstanceAddress() internal returns (address) {
+        return vm.envAddress("ORACLE_ADDRESS");
+    }
+
     function getDKGInstanceAddress() internal returns (address) {
         return vm.envAddress("DKG_ADDRESS");
     }

script/DeployMedusaFans.s.sol

@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.17;
+
+import "forge-std/Script.sol";
+import "../src/MedusaFans.sol";
+import {BaseScript} from "./BaseScript.s.sol";
+import {BN254EncryptionOracle as Oracle} from "../src/BN254EncryptionOracle.sol";
+
+contract DeployMedusaFans is BaseScript {
+    function run() external {
+        uint256 deployerPrivateKey = vm.envUint("PRIVATE_KEY");
+
+        vm.startBroadcast(deployerPrivateKey);
+        new MedusaFans(Oracle(getOracleInstanceAddress()));
+        vm.stopBroadcast();
+    }
+}