Fix workspace save reentrancy and cut 0.1.9 release

Include the current Limux planning docs, bump the workspace version, and keep the local release artifacts on the GitHub release instead of in git.

Co-authored-by: Codex <noreply@openai.com>

Release 0.1.8

- parse real OSC 9 control-byte notifications
- add regression coverage for OSC 9 notification parsing
- bump workspace packages to 0.1.8

Co-authored-by: Codex <noreply@openai.com>

fix: reduce split_pane arguments

Refactor split_pane to take a small options struct so host window code passes Clippy's too-many-arguments lint again.

Co-authored-by: Codex <noreply@openai.com>

release: cut v0.1.6

Limux v0.1.5

Limux v0.1.4

Bump version to 0.1.3

Strip repo to Limux-only: remove all macOS cmux files, flatten linux/…

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