fix: investigate lattice layout sessions

[phasetr]

Summary

• investigate lattice-system layout switching warning for workspace 02 / project lat
• fix active session detection or layout setup path as needed

Reproduction context

With the provided enkan-repl-target-directories / enkan-repl-projects config, launching lattice-system then pressing C-M-l in examples reports:

Setting up layout for 0 actual sessions in workspace '02' for project 'lat'...
No active sessions found in workspace '02'
Refreshed 1 tmux mirror buffer(s) for workspace 02

Expected behavior: the screen/layout switches appropriately for project lat.

Test plan

• pending

[phasetr]

Implemented the fix and pushed commit 3f95fe5.

What changed:

• restore missing workspace session-list from live tmux during reattach, covering the observed state where workspace 02 had target-directories for lat but session-list nil
• centralize buffer/target matching so path-named enkan buffers and tmux fallback mirrors are handled through one code path
• apply the unified matching to layout setup, send target resolution, prefix directory selection, workspace buffer filtering, and workspace buffer counts

Validation:

• reproduced the actual local state: enkan-02 has window lattice-system at /Users/sekine/dev/self/lattice-system while persisted workspace 02 had :session-list nil
• verified reattach now reconstructs ws02 as :session-list ((1 . "lat"))
• make test: 281/281 passing
• make compile: passing
• make clean: removed generated .elc files

[github-actions]

🎉 This PR is included in version 0.19.6 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀