Release v0.4.6 — Atomic Session Split & Workspace Tab Naming

🚀 Improvements

Workspace Tab Naming: Opening a terminal cluster from a Workspace Preset now automatically sets the header tab label to the Workspace Name (e.g., Production Cluster, Web + DB) instead of falling back to the first host's label.

Fix Split Button in Multi-Session Split Mode:
- Resolved an issue where launching a new session from the split button (next to SYNC) in an existing multi-pane split layout resulted in an empty connection log (No logs yet...) and stuck socket connection screen.
- Introduced openSessionInSplit in useSessionStore: atomically creates the new SSH session and performs the layout tree split in a single state transaction, preventing the intermediate dock-render cycle that was resetting the XtermView component state.
Connection Log Persistence in Terminal Pool:
- Handshake progress logs (connectionLogs, connectionStep, and connectionError) are now preserved inside terminalPool.
- Splitting, resizing, or remounting panes while an SSH connection is actively negotiating will no longer drop connection events or clear the log output.
Context Menu & Header Split Alignment:
- Updated terminal right-click context menu split actions (handleSplitRight / handleSplitDown) and Header tab context menu split actions to use the atomic openSessionInSplit workflow.

Component	Version	Package
Desktop Client (Tauri + Rust + React)	`v0.4.6`	Releases
Self-Hosted Sync Server (Go)	`v0.4.6`	`ghcr.io/termimus/termimus-sync`

405dd99 fix(terminal): atomic session split & display workspace name in tab header; bump v0.4.6