V0.5.0 - Add export mode
Adds an export mode for releases where the CI keypair has no proposer permission in Squads (#42):
export: 'true'outputs the combined transaction (program upgrade + IDL update + verify PDA) base58/base64 encoded as thetxoutput instead of creating the Squads vault transaction on-chain. A multisig member imports it into the Squads transaction builder — one transaction, one approval.keypairis optional in export mode; propose mode unchanged.- Fails with a clear error above the 1232-byte transaction size limit.