worktrunk v0.78.0 renames every hook context key

The JSON piped to every hook drops worktree, repo_root, main_worktree and main_worktree_path in favour of worktree_path, repo_path, repo and primary_worktree_path. Config templates migrate on load, so hooks written with the old names keep working; scripts that read the JSON, --execute templates and --var overrides need updating by hand, and the release marks that breaking.⁷ wt config plugins pi now installs a Pi extension — oh-my-pi moved to wt config plugins omp, and existing oh-my-pi hooks are listed as outdated until you re-run it there.