Deposit into the Delta Vault

import {
  findVaultPda,
  fetchVault,
} from '@/app/generated/delta-vault/accounts';

const [vault] = await findVaultPda({ perpsMarket: marketPda });
const vaultAccount = await fetchVault(rpc, vault);

import { getDepositInstruction } from '@/app/generated/delta-vault/instructions';

const ix = getDepositInstruction({
  user: wallet,
  vault,
  perpsMarket: marketPda,
  spotPool: vaultAccount.spotPool,
  oracle: priceUpdate,
  shareMint: vaultAccount.shareMint,
  userUsdcAta,
  userShareAta,
  usdcVault: vaultAccount.usdcVault,
  wsolVault: vaultAccount.wsolVault,
  perpsUserAccount: vaultAccount.perpsUserAccount,
  // + remaining accounts for place_order counterparties
  amount: 1_000_000_000n,    // 1,000 USDC
  openPerp: true,
  sizeAmount: 5_000_000_000n, // 5 SOL short (must match 50% leg sizing)
});

await sendTransaction([...postIxs, ix]);

import { getClaimFundingInstruction } from '@/app/generated/delta-vault/instructions';

const ix = getClaimFundingInstruction({
  keeper: wallet,
  vault,
  perpsMarket: marketPda,
  perpsUserAccount: vaultAccount.perpsUserAccount,
});

import { getWithdrawInstruction } from '@/app/generated/delta-vault/instructions';

const ix = getWithdrawInstruction({
  user: wallet,
  vault,
  ...,
  amount: 500_000_000n, // 500 USDC worth of shares
  closePerp: true,      // proportionally close the hedge
});