feat: 完善 MCU 芯片自动化测试架构

- 重构为三角色协作：人+Arch AI+执行AI
- 新增 Excel 寄存器表格解析工具，自动生成测试代码
- 新增串口日志分析工具，自动生成测试报告
- 完善项目文档：AGENTS.md、README.md
- 创建自动化测试架构设计文档
- 添加示例测试任务 P01-001

.ai/config/executor.json

@@ -0,0 +1,38 @@
+{
+  "name": "Executor AI",
+  "role": "测试执行者",
+  "description": "allowed_paths = 可写路径（含读）；read_only_paths = 只读路径；不在二者中的路径禁止访问。详细权限见 AGENTS.md 权限矩阵。",
+  "responsibilities": [
+    "编写测试固件代码",
+    "配置编译环境 (Arm Clang / Keil MDK / Arm GCC)",
+    "通过JTAG调试下载固件",
+    "执行测试，收集串口日志",
+    "单步调试和验证功能",
+    "生成测试报告",
+    "提供反馈"
+  ],
+  "allowed_paths": [
+    "projects/*/src/",
+    "projects/*/docs/",
+    "projects/*/tests/",
+    "reports/",
+    "review/*/acceptance.md",
+    "review/*/feedback/",
+    "tools/"
+  ],
+  "read_only_paths": [
+    "docs/",
+    "shared/",
+    "review/*/task.md",
+    "review/*/acceptance.md"
+  ],
+  "forbidden_paths": [
+    ".ai/",
+    "shared/",
+    "review/*/impact.md"
+  ],
+  "prompt_templates": {
+    "execution": ".ai/prompts/execution/",
+    "testing": ".ai/prompts/execution/"
+  }
+}