feat(portable): 交互式 CLI 启动器 + 3 个办公技能（采纳自 PR #36）

基于最新 main 重做 PR #36（fanjiazhen）中有价值的部分：
- OpenClaw-CLI.bat / Mac-OpenClaw-CLI.command：进阶用户双击打开一个配好
  便携环境（盘内 Node + 盘内数据 + .bin 入 PATH）的命令行，可直接敲
  openclaw 命令（chat/configure/doctor/gateway status 等）。
- skills-cn/ 新增 word-writer / excel-helper / ppt-designer 三个办公文本
  技能，与现有 10 个本地化技能（小红书/知乎等）互补，frontmatter 格式一致。

未采纳 PR #36 的其余部分：HTML 品牌改动、skill_zip 二进制、删充值.html。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

portable/Mac-OpenClaw-CLI.command

@@ -0,0 +1,63 @@
+#!/bin/bash
+# ============================================================
+# U-Claw - Interactive CLI (macOS)
+# 进阶用户：双击打开一个配置好环境的终端，可直接敲 openclaw 命令。
+# 复用与 Mac-Start.command 一致的便携环境（盘内 Node + 盘内数据）。
+# ============================================================
+
+UCLAW_DIR="$(cd "$(dirname "$0")" && pwd)"
+APP_DIR="$UCLAW_DIR/app"
+CORE_DIR="$APP_DIR/core"
+DATA_DIR="$UCLAW_DIR/data"
+STATE_DIR="$DATA_DIR/.openclaw"
+
+RED='\033[0;31m'; GREEN='\033[0;32m'; CYAN='\033[0;36m'; NC='\033[0m'
+
+# Detect CPU & set runtime（与 Mac-Start.command 一致）
+ARCH=$(uname -m)
+if [ "$ARCH" = "arm64" ]; then
+    NODE_DIR="$APP_DIR/runtime/node-mac-arm64"
+elif [ "$ARCH" = "x86_64" ]; then
+    NODE_DIR="$APP_DIR/runtime/node-mac-x64"
+else
+    echo -e "  ${RED}Unsupported architecture: $ARCH${NC}"
+    read -p "  Press Enter to exit..."
+    exit 1
+fi
+
+NODE_BIN="$NODE_DIR/bin/node"
+if [ ! -f "$NODE_BIN" ]; then
+    echo -e "  ${RED}Node.js runtime not found.${NC} Run Mac-Start.command once first."
+    read -p "  Press Enter to exit..."
+    exit 1
+fi
+if [ ! -x "$CORE_DIR/node_modules/.bin/openclaw" ]; then
+    echo -e "  ${RED}OpenClaw not installed yet.${NC} Run Mac-Start.command once first."
+    read -p "  Press Enter to exit..."
+    exit 1
+fi
+
+export OPENCLAW_HOME="$DATA_DIR"
+export OPENCLAW_STATE_DIR="$STATE_DIR"
+export OPENCLAW_CONFIG_PATH="$STATE_DIR/openclaw.json"
+# 盘内 node 和 .bin 放到 PATH 最前，让 openclaw 命令可直接调用
+export PATH="$NODE_DIR/bin:$CORE_DIR/node_modules/.bin:$PATH"
+
+echo ""
+echo -e "${CYAN}========================================${NC}"
+echo -e "${CYAN}   U-Claw Interactive CLI${NC}"
+echo -e "${CYAN}========================================${NC}"
+echo ""
+echo "  You can now run the 'openclaw' command directly. Examples:"
+echo "    openclaw --help          Show all commands"
+echo "    openclaw chat            Open the terminal chat UI"
+echo "    openclaw configure       Interactive setup (models, channels)"
+echo "    openclaw doctor          Diagnose and repair"
+echo "    openclaw gateway status  Check the running gateway"
+echo ""
+echo -e "  Type ${GREEN}exit${NC} to close."
+echo -e "${CYAN}========================================${NC}"
+echo ""
+
+# 开一个继承上述环境的交互 shell
+exec "$SHELL" -i