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

.scale/quality-contract.json

@@ -0,0 +1,70 @@
+{
+  "version": "1.0",
+  "project": "eskin-model-player",
+  "description": "E-Skin 传感器数据可视化工具质量契约",
+  "gates": {
+    "pre_commit": {
+      "enabled": true,
+      "checks": [
+        {
+          "name": "type_check",
+          "command": "cargo check",
+          "required": true,
+          "description": "类型检查"
+        },
+        {
+          "name": "lint",
+          "command": "cargo clippy -- -D warnings",
+          "required": true,
+          "description": "Clippy lint 检查"
+        },
+        {
+          "name": "test",
+          "command": "cargo test",
+          "required": true,
+          "description": "单元测试"
+        }
+      ]
+    },
+    "pre_push": {
+      "enabled": true,
+      "checks": [
+        {
+          "name": "build_release",
+          "command": "cargo build --release",
+          "required": true,
+          "description": "Release 构建验证"
+        },
+        {
+          "name": "full_test",
+          "command": "cargo test --all",
+          "required": true,
+          "description": "完整测试套件"
+        }
+      ]
+    },
+    "code_review": {
+      "enabled": true,
+      "checks": [
+        {
+          "name": "no_unwrap",
+          "pattern": "\\.unwrap\\(\\)",
+          "severity": "warning",
+          "description": "避免裸 unwrap()，使用 expect() 或 ? 运算符"
+        },
+        {
+          "name": "no_todo",
+          "pattern": "todo!\\(\\)|unimplemented!\\(\\)",
+          "severity": "warning",
+          "description": "生产代码不应包含 todo!/unimplemented!"
+        }
+      ]
+    }
+  },
+  "quality_metrics": {
+    "max_complexity": 15,
+    "min_test_coverage": 0,
+    "max_file_lines": 500,
+    "max_function_lines": 80
+  }
+}