fix: harden Unix scripts and Makefile

scripts/build.sh

@@ -11,10 +11,20 @@ echo "[1/2] 同步物品贴图"
 "$DIR/sync-items.sh"
 
 if ! command -v hugo >/dev/null 2>&1; then
-  echo "[错误] 未找到 hugo, 请安装 Hugo 或将其加入 PATH。" >&2
-  exit 1
+  HUGO_BIN=""
+  if [ -n "${HUGO:-}" ] && [ -x "$HUGO" ]; then
+    HUGO_BIN="$HUGO"
+  elif [ -n "${LOCALAPPDATA:-}" ]; then
+    HUGO_BIN="$(find "$LOCALAPPDATA/Microsoft/WinGet/Packages" -maxdepth 3 -name hugo.exe 2>/dev/null | head -n 1)"
+  fi
+  if [ -z "$HUGO_BIN" ]; then
+    echo "[错误] 未找到 hugo, 请安装 Hugo、将其加入 PATH, 或设置环境变量 HUGO。" >&2
+    exit 1
+  fi
+else
+  HUGO_BIN="$(command -v hugo)"
 fi
 
 echo
 echo "[2/2] hugo 构建"
-exec hugo "$@"
+exec "$HUGO_BIN" "$@"

scripts/dev.sh

@@ -28,10 +28,20 @@ else
 fi
 
 if ! command -v hugo >/dev/null 2>&1; then
-  echo "[错误] 未找到 hugo, 请安装 Hugo 或将其加入 PATH。" >&2
-  exit 1
+  HUGO_BIN=""
+  if [ -n "${HUGO:-}" ] && [ -x "$HUGO" ]; then
+    HUGO_BIN="$HUGO"
+  elif [ -n "${LOCALAPPDATA:-}" ]; then
+    HUGO_BIN="$(find "$LOCALAPPDATA/Microsoft/WinGet/Packages" -maxdepth 3 -name hugo.exe 2>/dev/null | head -n 1)"
+  fi
+  if [ -z "$HUGO_BIN" ]; then
+    echo "[错误] 未找到 hugo, 请安装 Hugo、将其加入 PATH, 或设置环境变量 HUGO。" >&2
+    exit 1
+  fi
+else
+  HUGO_BIN="$(command -v hugo)"
 fi
 
 echo
 echo "[2/2] 启动 hugo server"
-exec hugo server "${HUGO_ARGS[@]}"
+exec "$HUGO_BIN" server "${HUGO_ARGS[@]}"

scripts/sync-items.sh

@@ -6,12 +6,12 @@ set -euo pipefail
 DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 
 PY=""
-if command -v python3 >/dev/null 2>&1; then
+if command -v python3 >/dev/null 2>&1 && python3 -c "import sys" >/dev/null 2>&1; then
   PY="python3"
-elif command -v python >/dev/null 2>&1; then
+elif command -v python >/dev/null 2>&1 && python -c "import sys" >/dev/null 2>&1; then
   PY="python"
 else
-  echo "[错误] 未找到 python3 / python, 请先安装 Python 3。" >&2
+  echo "[错误] 未找到可用的 python3 / python, 请先安装 Python 3。" >&2
   exit 1
 fi