v3.12.0

• feat: Renames carry history, recents and your fleet view.
• feat: Edit a host's alias and your connection history follows it, so your top hosts stay top after a typo fix or a provider relabel.
• feat: Jump-bar recents move with the rename, so the universal : bar still surfaces the host you actually use.
• feat: Collapsed fleets in the containers tab survive a rename, so big fleets stay tidy across edits.
• feat: purple sync migrates the same per-host state when a cloud provider rewrites an alias, so a relabel never orphans your context.
• feat: Container logs (l) open in demo mode, so --demo shows off the search and filter UI without a remote shell.
• change: SSH config rename keeps # purple:* metadata, unknown directives, CRLF endings and the UTF-8 BOM byte-for-byte. New round-trip tests lock it in.