/unfreeze — Clear Freeze Boundary

Remove the edit restriction set by /freeze, allowing edits to all directories.

STATE_DIR="${VIBESTACK_HOME:-$HOME/.vibestack}"
if [ -f "$STATE_DIR/freeze-dir.txt" ]; then
  PREV=$(cat "$STATE_DIR/freeze-dir.txt")
  rm -f "$STATE_DIR/freeze-dir.txt"
  echo "Freeze boundary cleared (was: $PREV). Edits are now allowed everywhere."
else
  echo "No freeze boundary was set."
fi

Tell the user the result. Note that /freeze hooks remain registered for the session — they will allow all paths since no state file exists. To re-freeze, run /freeze again.