feat: 拆分 environment-setup 为 Python/Node.js 运行时双核心 + 父级路由

新增双核心 skill（深度集成 DesireCore Hatch/Volta + HTTP API + Socket.IO）：
- python-runtime v1.0.1：Python 运行时管理
  · 四级降级：HTTP API → Hatch CLI 绝对路径 → 系统包管理器 → pyenv
  · references：hatch-desirecore / pyenv-fallback / virtualenv / troubleshooting
  · scripts/probe-python.sh：输出 JSON 快照供 Claude 解析决策
- nodejs-runtime v1.0.1：Node.js 运行时管理
  · 四级降级：HTTP API → Volta CLI → 系统包管理器/NodeSource → nvm/fnm
  · references：volta-desirecore / nvm-fallback / package-managers / troubleshooting
  · scripts/probe-node.sh：输出 JSON 快照（含 volta_tools / package_json_volta 等）

environment-setup → dev-environment-setup v2.0.1（重命名 + 重写为 router）：
- 从 1380 行手册瘦身为 ~150 行索引
- 仅负责容器（Docker/Podman）/ WSL2 / 办公依赖速查 / 系统工具
- references/desirecore-runtime.md 沉淀 Hatch/Volta 路径表 + HTTP API 速查 +
  Socket.IO 事件契约，作为两个核心 skill 的共享底座
- references/decision-tree.md 定义四级降级决策树
- scripts/probe.sh + probe.ps1 系统级 JSON 探测

三个 SKILL.md 的 L0 改为场景驱动结构（何时使用 / 何时不要用 / 怎么做），
让 AI 凭名字与 L0 即可判断匹配场景。

注册更新：
- builtin-skills.json：新增 python-runtime / nodejs-runtime / dev-environment-setup
  （原 environment-setup 移除），按字母序，共 21 个 skill
- manifest.json：totalSkills 19→21，lastUpdated 2026-05-02

下游同步：
- docx / pdf / xlsx / pptx 中的环境引用从 environment-setup 拆分为
  python-runtime / nodejs-runtime / dev-environment-setup 三向指引

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

skills/python-runtime/scripts/probe-python.sh

@@ -0,0 +1,103 @@
+#!/usr/bin/env bash
+# python-runtime probe: 输出 Python 环境快照（JSON）
+# 协议：见 ../../dev-environment-setup/references/probe-snapshot.md
+
+set +e
+
+detect_tool() {
+  local name="$1"
+  local path
+  path=$(command -v "$name" 2>/dev/null)
+  if [ -z "$path" ]; then
+    printf '{"path":"","version":""}'
+    return
+  fi
+  local version
+  version=$("$name" --version 2>&1 | head -n1 | grep -oE '[0-9]+\.[0-9]+(\.[0-9]+)?' | head -n1)
+  printf '{"path":"%s","version":"%s"}' "$path" "${version:-}"
+}
+
+# ── 平台 ────────────────────────────────
+case "$(uname -s)" in
+  Darwin) PLATFORM="darwin" ;;
+  Linux)  PLATFORM="linux"  ;;
+  *)      PLATFORM="other"  ;;
+esac
+ARCH=$(uname -m)
+case "$ARCH" in
+  arm64|aarch64) ARCH="arm64" ;;
+  x86_64|amd64)  ARCH="x64"   ;;
+esac
+
+# ── DesireCore API ──────────────────────
+DESIRECORE_API=""
+PORT_FILE="$HOME/.desirecore/agent-service.port"
+if [ -r "$PORT_FILE" ]; then
+  PORT=$(cat "$PORT_FILE" 2>/dev/null | tr -d '[:space:]')
+  if [ -n "$PORT" ]; then
+    if curl -sk --max-time 0.5 "https://127.0.0.1:${PORT}/api/runtime/environment" >/dev/null 2>&1; then
+      DESIRECORE_API="https://127.0.0.1:${PORT}"
+    fi
+  fi
+fi
+
+# ── 系统 Python / pip ───────────────────
+SYS_PY=$(detect_tool python3)
+[ "$(echo "$SYS_PY" | grep -c '"path":""')" = "1" ] && SYS_PY=$(detect_tool python)
+SYS_PIP=$(detect_tool pip3)
+[ "$(echo "$SYS_PIP" | grep -c '"path":""')" = "1" ] && SYS_PIP=$(detect_tool pip)
+
+# ── DesireCore Hatch ────────────────────
+HATCH_BIN="$HOME/.desirecore/runtime/hatch/hatch"
+HATCH_PATH=""
+HATCH_VERSION=""
+if [ -x "$HATCH_BIN" ]; then
+  HATCH_PATH="$HATCH_BIN"
+  HATCH_VERSION=$("$HATCH_BIN" --version 2>/dev/null | grep -oE '[0-9]+\.[0-9]+(\.[0-9]+)?' | head -n1)
+fi
+
+# Hatch 已安装的 Python 版本（直接读 local/ 目录，避免依赖 hatch 命令）
+HATCH_LOCAL="$HOME/.desirecore/runtime/hatch/local"
+HATCH_VERSIONS="[]"
+if [ -d "$HATCH_LOCAL" ]; then
+  versions=$(ls -1 "$HATCH_LOCAL" 2>/dev/null | sort -V | tr '\n' ',' | sed 's/,$//')
+  if [ -n "$versions" ]; then
+    HATCH_VERSIONS="[\"$(echo "$versions" | sed 's/,/","/g')\"]"
+  fi
+fi
+
+# ── 虚拟环境 ────────────────────────────
+ACTIVE_VENV="${VIRTUAL_ENV:-}"
+
+# ── PEP 668 ────────────────────────────
+PEP668="false"
+for marker in /usr/lib/python*/EXTERNALLY-MANAGED /usr/lib/python3/EXTERNALLY-MANAGED /usr/lib/python3*/EXTERNALLY-MANAGED; do
+  if [ -e "$marker" ]; then
+    PEP668="true"
+    break
+  fi
+done
+
+# ── 社区方案 ────────────────────────────
+PYENV_PATH=$(command -v pyenv 2>/dev/null)
+[ -z "$PYENV_PATH" ] && [ -d "$HOME/.pyenv/bin" ] && PYENV_PATH="$HOME/.pyenv/bin/pyenv"
+CONDA_PATH=$(command -v conda 2>/dev/null)
+[ -z "$CONDA_PATH" ] && [ -x "$HOME/miniconda3/bin/conda" ] && CONDA_PATH="$HOME/miniconda3/bin/conda"
+
+# ── 输出 JSON ───────────────────────────
+cat <<EOF
+{
+  "platform": "${PLATFORM}",
+  "arch": "${ARCH}",
+  "desirecore_api": "${DESIRECORE_API}",
+  "system_python": ${SYS_PY},
+  "system_pip": ${SYS_PIP},
+  "hatch_path": "${HATCH_PATH}",
+  "hatch_version": "${HATCH_VERSION}",
+  "hatch_versions": ${HATCH_VERSIONS},
+  "active_venv": "${ACTIVE_VENV}",
+  "pep668": ${PEP668},
+  "pyenv_path": "${PYENV_PATH:-}",
+  "conda_path": "${CONDA_PATH:-}"
+}
+EOF