feat: rename skills/skiff to pouch and move ACK state under .pouch

Use ~/.pouch, the pouch CLI, and .pouch.yaml as the SSOT container.
Keep the inner skills/ packages, and store ACK project state in
.pouch/ack instead of docs/ack.

install.sh

@@ -3,17 +3,22 @@ set -euo pipefail
 
 REPO="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 BIN_DIR="${HOME}/.local/bin"
-PATH_MARKER="# skiff: ~/.local/bin"
+PATH_MARKER="# pouch: ~/.local/bin"
+LEGACY_PATH_MARKER="# skiff: ~/.local/bin"
 
 mkdir -p "$BIN_DIR"
-ln -sf "$REPO/bin/skiff" "$BIN_DIR/skiff"
-echo "已安装 skiff -> $BIN_DIR/skiff"
+ln -sf "$REPO/bin/pouch" "$BIN_DIR/pouch"
+echo "已安装 pouch -> $BIN_DIR/pouch"
+if [[ ! -e "$BIN_DIR/skiff" || -L "$BIN_DIR/skiff" ]]; then
+  ln -sf "pouch" "$BIN_DIR/skiff"
+  echo "已保留 skiff -> pouch（旧命令名）"
+fi
 
-PYTHONPATH="$REPO${PYTHONPATH:+:$PYTHONPATH}" python3 -m skiff bootstrap
+PYTHONPATH="$REPO${PYTHONPATH:+:$PYTHONPATH}" python3 -m pouch bootstrap
 
 path_already_configured() {
   local file="$1"
-  [[ -f "$file" ]] && grep -qF "$PATH_MARKER" "$file"
+  [[ -f "$file" ]] && { grep -qF "$PATH_MARKER" "$file" || grep -qF "$LEGACY_PATH_MARKER" "$file"; }
 }
 
 configure_bash() {