Add script for team sponsorship via squads import

Anchor.toml

@@ -1,3 +1,3 @@
 [toolchain]
 solana_version = "1.17.34"
 
@@ -57,6 +57,7 @@
 v06-return-funds = "yarn run tsx scripts/v0.6/returnFunds.ts"
 v06-dump-daos = "yarn run tsx scripts/v0.6/dumpDaos.ts"
 v06-migrate-daos = "yarn run tsx scripts/v0.6/migrateDaos.ts"
+v06-sponsor-proposal = "yarn run tsx scripts/v0.6/sponsorProposal.ts"
 v07-collect-meteora-damm-fees = "yarn run tsx scripts/v0.7/collectMeteoraDammFees.ts"
 v07-launch-template = "yarn run tsx scripts/v0.7/launchTemplate.ts"
 v07-start-launch = "yarn run tsx scripts/v0.7/startLaunch.ts"

scripts/v0.6/sponsorProposal.ts

@@ -0,0 +1,61 @@
+import * as anchor from "@coral-xyz/anchor";
+import { FutarchyClient } from "@metadaoproject/programs/futarchy/v0.6";
+import { PublicKey, TransactionMessage } from "@solana/web3.js";
+import bs58 from "bs58";
+
+// Set the DAO and the proposal its team wants to sponsor before running the script
+const DAO = new PublicKey("");
+const PROPOSAL = new PublicKey("");
+
+const provider = anchor.AnchorProvider.env();
+const futarchyClient = FutarchyClient.createClient({ provider });
+
+const sponsorProposal = async () => {
+  const dao = await futarchyClient.fetchDao(DAO);
+
+  if (!dao) {
+    throw new Error("DAO not found");
+  }
+
+  const proposal = await futarchyClient.fetchProposal(PROPOSAL);
+
+  if (!proposal) {
+    throw new Error("Proposal not found");
+  }
+
+  if (!proposal.dao.equals(DAO)) {
+    throw new Error(
+      `Proposal belongs to DAO ${proposal.dao.toBase58()}, not ${DAO.toBase58()}`,
+    );
+  }
+
+  console.log(`Proposal: ${PROPOSAL.toBase58()}`);
+  console.log(`DAO: ${DAO.toBase58()}`);
+  console.log(`Team address: ${dao.teamAddress.toBase58()}`);
+
+  const sponsorIx = await futarchyClient
+    .sponsorProposalIx({
+      proposal: PROPOSAL,
+      dao: DAO,
+      teamAddress: dao.teamAddress,
+    })
+    .instruction();
+
+  const transactionMessage = new TransactionMessage({
+    instructions: [sponsorIx],
+    payerKey: dao.teamAddress,
+    recentBlockhash: (await provider.connection.getLatestBlockhash()).blockhash,
+  });
+
+  const serializedMessage = transactionMessage
+    .compileToLegacyMessage()
+    .serialize();
+
+  console.log("\nTransaction message (base58):");
+  console.log(bs58.encode(serializedMessage));
+
+  console.log("\nTransaction message (base64):");
+  console.log(serializedMessage.toString("base64"));
+};
+
+sponsorProposal().catch(console.error);