v3.0.0

Corrections derived by the feedback loop are now proposals a reviewer decides on before they enter a prompt version, with approve, edit and reject recorded under the reviewer's name. playbook diff compares two versions step by step and reports the steps added, removed and changed, including retitled and reordered ones. playbook promote signs a graded version off for use and refuses while the version still commits a forbidden action or carries undecided proposals, and the refusal is recorded as well. playbook review audit prints the whole decision trail, corrections and versions together, from the proposals and promotions stored alongside the runs. The unattended path is unchanged: playbook loop still decides as the reviewer auto, and offline mode still needs no API key.