List Website Versions

Lists automatic version snapshots of the website. Every file write, edit, download and shell command takes a snapshot of /data/site FIRST, so an overwritten page can always be recovered. When a change disappeared, was reverted or came back wrong, the snapshot from before the change is listed here and site_restore restores it. Returns {versions:[{id, when, label}]} — newest first; older history is paged with offset (the answer gives next_offset). READ-ONLY FILE HISTORY: pass version_id + path to get that file exactly as it was in that snapshot (show="content") or its difference from the current file (show="diff") without restoring anything; long output is paged with byte_offset (the answer gives next_byte_offset).