Agents now capture a full version snapshot on every publish, and publishing opens a dialog to add an optional title and description to the version.

• Publish dialog — a title and description can be added when publishing; shown in the version history sidebar and the editor header
• Version snapshots — each publish stores a local snapshot of agent-builder-owned fields (form, phone number, transfer/email/SMS settings, welcome messages) so version restore is complete
• Version history sidebar — now searches and displays version title alongside the version number and publish status
• Historical version view — loading an old version in the editor shows the version title and description in the header with a distinct visual indicator