feat: 初始化 SCALE OS 工程框架

- 添加 SCALE Engine 配置 (.scale/)
- 添加 OpenClaw Agent 配置 (.openclaw/)
- 添加知识文档 (AGENTS.md, TOOLS.md)
- 添加质量契约和工作流配置
- 添加 22 个工作流模板
- 添加验证脚本和门控脚本
- 添加 skills-registry 技能注册表

docs/workflow/templates/github-actions-scale-preflight.yml

@@ -0,0 +1,32 @@
+name: SCALE Preflight
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+      - master
+
+jobs:
+  preflight:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Install project dependencies when present
+        shell: bash
+        run: |
+          if [ -f package-lock.json ]; then
+            npm ci
+          elif [ -f package.json ]; then
+            npm install
+          fi
+
+      - name: Run SCALE preflight
+        run: npx @hongmaple0820/scale-engine@latest preflight --service all --preflight-profile ci