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/skill-evidence.md

@@ -0,0 +1,33 @@
+# Skill Evidence
+
+## Planned Skills
+
+- TBD
+
+## Tool Selection Rationale
+
+TBD
+
+## Used Skills
+
+| Skill | Phase | Trigger | Evidence | Status |
+| --- | --- | --- | --- | --- |
+| skill-id | plan/build/verify/review | why it was selected | command, screenshot, report, or artifact path | executed/skipped/fallback |
+
+## Browser Or Web Evidence
+
+| Tool | Target | Evidence | Result |
+| --- | --- | --- | --- |
+| web-access/agent-browser/Chrome DevTools MCP | URL or local target | screenshot, console log, network finding, source URL | passed/failed/skipped |
+
+## Desktop Or External CLI Evidence
+
+| Tool | Scope | Safety Boundary | Evidence | Result |
+| --- | --- | --- | --- | --- |
+| cua/codex/gemini/opencode/wps/wechat | command or app target | read-only/dry-run/test account/manual approval | output summary, screenshot, or report path | passed/failed/skipped |
+
+## Skipped Skills
+
+| Skill | Reason | Fallback Evidence |
+| --- | --- | --- |
+| skill-id | why it could not run | manual review, alternate command, or explicit risk |