feat: add createMultisigProposal method to SolanaAgentKit for creating proposals

src/agent/index.ts

@@ -51,6 +51,7 @@ import { BN } from "@coral-xyz/anchor";
 import { create_squads_multisig } from "../tools/squads_multisig/create_multisig";
 import { deposit_to_multisig } from "../tools/squads_multisig/deposit_to_multisig";
 import { transfer_from_multisig } from "../tools/squads_multisig/transfer_from_multisig";
+import { create_proposal } from "../tools/squads_multisig/create_proposal";
 
 /**
  * Main class for interacting with Solana blockchain
@@ -373,4 +374,10 @@ export class SolanaAgentKit {
   ): Promise<string> {
     return transfer_from_multisig(this, amount, to, vaultIndex, mint);
   }
+
+  async createMultisigProposal(
+    transactionIndex?: number | bigint,
+  ): Promise<string> {
+    return create_proposal(this, transactionIndex);
+  }
 }