fix(init): resolve broken merge in bash/zsh fzf blocks

The merge of main into fix-open-ai inserted new --expect code above the
existing porcelain/empty-state logic instead of replacing it, leaving a
dangling _gtr_selection subshell and duplicate variable declarations that
produced syntax errors in the generated shell code.

Move the _gtr_key/_gtr_line declarations to after the empty-state guard
and remove the orphaned half-finished assignment lines so bash -n passes
cleanly on the generated init output.

Author: helizaga

lib/commands/init.sh

@@ -83,15 +83,13 @@ __FUNC__() {
     shift
     local dir
     if [ "$#" -eq 0 ] && command -v fzf >/dev/null 2>&1; then
-      local _gtr_selection _gtr_key _gtr_line
-      _gtr_selection="$(command git gtr list --porcelain | fzf \
       local _gtr_porcelain
       _gtr_porcelain="$(command git gtr list --porcelain)"
       if [ "$(printf '%s\n' "$_gtr_porcelain" | wc -l)" -le 1 ]; then
         echo "No worktrees to pick from. Create one with: git gtr new <branch>" >&2
         return 0
       fi
-      local _gtr_selection
+      local _gtr_selection _gtr_key _gtr_line
       _gtr_selection="$(printf '%s\n' "$_gtr_porcelain" | fzf \
         --delimiter=$'\t' \
         --with-nth=2 \
@@ -201,15 +199,13 @@ __FUNC__() {
     shift
     local dir
     if [ "$#" -eq 0 ] && command -v fzf >/dev/null 2>&1; then
-      local _gtr_selection _gtr_key _gtr_line
-      _gtr_selection="$(command git gtr list --porcelain | fzf \
       local _gtr_porcelain
       _gtr_porcelain="$(command git gtr list --porcelain)"
       if [ "$(printf '%s\n' "$_gtr_porcelain" | wc -l)" -le 1 ]; then
         echo "No worktrees to pick from. Create one with: git gtr new <branch>" >&2
         return 0
       fi
-      local _gtr_selection
+      local _gtr_selection _gtr_key _gtr_line
       _gtr_selection="$(printf '%s\n' "$_gtr_porcelain" | fzf \
         --delimiter=$'\t' \
         --with-nth=2 \