9f9433c5ca
- Added contextual Vim ex parsing for `.,$`, `+/-` addresses, copy/move destinations, and `del/ya` aliases. - Added Vim engine handling for clamped ranges, no-op `update`, and register-aware `yank`/`put` command execution. - Added regression tests for explicit ranges, yank/put, inline-cursor rendering, and `message_update` ordering. - Updated session event flow by queuing `message_update` events, changed websocket default to `off`, and documented Unreleased notes.