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

.openclaw/settings.json

@@ -0,0 +1,35 @@
+{
+  "hooks": {
+    "pre-exec": [
+      {
+        "matcher": "",
+        "command": "scale gate pre-tool Bash --args-json \"$ARGS\" --session-id \"$SESSION_ID\""
+      },
+      {
+        "matcher": "edit|write",
+        "command": "scale gate pre-tool Edit --args-json \"$ARGS\" --session-id \"$SESSION_ID\""
+      }
+    ],
+    "post-exec": [
+      {
+        "matcher": "edit|write",
+        "command": "scale gate post-tool Edit --args-json \"$ARGS\" --exit-code \"$EXIT_CODE\" --session-id \"$SESSION_ID\""
+      },
+      {
+        "matcher": "",
+        "command": "scale gate post-tool Bash --args-json \"$ARGS\" --exit-code \"$EXIT_CODE\" --session-id \"$SESSION_ID\""
+      }
+    ],
+    "before-stop": [
+      {
+        "matcher": "",
+        "command": "scale gate before-stop --session-id \"$SESSION_ID\""
+      }
+    ]
+  },
+  "permissions": {
+    "allow": [
+      "scale:*"
+    ]
+  }
+}