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/runtime.md

@@ -0,0 +1,21 @@
+# Runtime Contract
+
+## Configuration Source
+
+- Source: TBD
+- Environment/profile: TBD
+- Runtime overrides: TBD
+- Secrets boundary: TBD
+
+## Service Topology
+
+| Service | URL Or Command | Config Source | Auth Mode | Status |
+| --- | --- | --- | --- | --- |
+| TBD | TBD | TBD | TBD | Not checked |
+
+## Verification Boundary
+
+- Confirmed:
+- Not covered:
+- Credential-gated:
+- Environment-gated: