课程代码仓库初始化：Part1 (144) + Part3 (29) 全量生成与验证

把川大 wiki「02.Qt方向」课程代码整理为 CMake 管理的可编译运行项目。

Part1 C/C++ 强化 (p01/, 144 目标, host gcc/g++ 构建, 全绿):
- 修复全部编译失败：补 <cstring>/<fstream>/<iomanip>/<vector> 等缺失头
  (common_fix + infer_stl_includes 自动检测注入)、修正 pause() 壳注入
  (改检测已转换后的 pause 调用)、namespace 提升出函数体、const 成员函数
  正确性、dedupe 不再破坏函数重载集、K&R 隐式 int / 动态异常规范等
  C++17 移除特性的可编译等价改写。
- 目录采用深缩写 p01/ch04/s03/ (原 part1_cpp/ch04_class_object/03_ctor_dtor)。

Part3 Qt 桌面 (p03/, 29 目标, 隔离 Qt 5.14.2 构建, 全绿):
- gen_part3.py: Qt 外壳模板 (main+QApplication+show, QTimer 自动退出便于
  offscreen 验证)、AUTOMOC + .moc include、rewrite_* 处理散文混入/重载/
  资源依赖、生成占位 png/gif + .qrc + rundata 样例数据。
- 修正 QLable 笔误、全角分号、.→->、Windows 路径、QApplication 阻塞事件
  循环改为 QCoreApplication 等。

任务1 概念/版本验证:
- tools/std_probe.py: 跨 -std= 编译探针 (--pedantic-errors 让已废除特性硬失败)。
- tools/demo_versions/: K&R 隐式 int、三目左值、void* 转换、enum 赋整、
  const 经指针、动态异常规范 共 6 个跨版本演示。
- docs/VERSION_NOTES.md: 每条「原文说法→C17/C++17 是否成立→何版本成立→已验证」。

文档: 顶层 README、docs/SOURCE_PAGES.md (页面→目录映射)、
docs/ERRATA.md (Part1 修正)、docs/ERRATA_part3.md (Part3 修正)。
另修复 tools/run.sh / run_qt.sh 的 ${1:?...} 引号语法 bug。

隔离 Qt 验证: ldd 0 系统 Qt 引用; 173/173 目标全绿; p03 offscreen 运行通过。

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+      "title": "01.C++技术强化及提升",
+      "children": [
+        {
+          "id": "58954437",
+          "title": "01.C++概述",
+          "children": []
+        },
+        {
+          "id": "58954438",
+          "title": "02.C++初识",
+          "children": []
+        },
+        {
+          "id": "58954439",
+          "title": "03.C++对C的扩展",
+          "children": []
+        },
+        {
+          "id": "58954440",
+          "title": "04.类和对象",
+          "children": [
+            {
+              "id": "58954448",
+              "title": "01.类和对象的基本概念",
+              "children": []
+            },
+            {
+              "id": "58954449",
+              "title": "02.面向对象程序设计案例",
+              "children": []
+            },
+            {
+              "id": "58954451",
+              "title": "03.对象的构造和析构",
+              "children": []
+            },
+            {
+              "id": "58954456",
+              "title": "04.C++面向对象模型初探",
+              "children": []
+            },
+            {
+              "id": "58954457",
+              "title": "05.友元",
+              "children": []
+            },
+            {
+              "id": "58954458",
+              "title": "06.运算符重载",
+              "children": []
+            },
+            {
+              "id": "58954461",
+              "title": "07.继承和派生",
+              "children": []
+            },
+            {
+              "id": "58954469",
+              "title": "08.多态",
+              "children": []
+            }
+          ]
+        },
+        {
+          "id": "58954472",
+          "title": "05.C++模板",
+          "children": []
+        },
+        {
+          "id": "58954473",
+          "title": "06.C++类型转换",
+          "children": []
+        },
+        {
+          "id": "58954474",
+          "title": "07.C++异常",
+          "children": []
+        },
+        {
+          "id": "58954476",
+          "title": "08.C++输入输出流",
+          "children": []
+        },
+        {
+          "id": "58954485",
+          "title": "09.STL",
+          "children": [
+            {
+              "id": "58954486",
+              "title": "01.STL概论",
+              "children": []
+            },
+            {
+              "id": "58954487",
+              "title": "02.STL三大组件",
+              "children": []
+            },
+            {
+              "id": "58954488",
+              "title": "03.常用容器",
+              "children": []
+            },
+            {
+              "id": "58954498",
+              "title": "04.常用算法",
+              "children": []
+            }
+          ]
+        }
+      ]
+    },
+    {
+      "id": "58954500",
+      "title": "02.QT安装教程（免注册和登陆）",
+      "children": []
+    },
+    {
+      "id": "58954512",
+      "title": "03.Qt桌面应用开发",
+      "children": [
+        {
+          "id": "58954513",
+          "title": "1 Qt概述",
+          "children": []
+        },
+        {
+          "id": "58954515",
+          "title": "2 创建Qt项目",
+          "children": []
+        },
+        {
+          "id": "58954525",
+          "title": "3 第一个Qt小程序",
+          "children": []
+        },
+        {
+          "id": "58954527",
+          "title": "4 信号和槽机制",
+          "children": []
+        },
+        {
+          "id": "58954529",
+          "title": "5 QMainWindow",
+          "children": []
+        },
+        {
+          "id": "58954535",
+          "title": "6 对话框QDialog",
+          "children": []
+        },
+        {
+          "id": "58954536",
+          "title": "7 布局管理器",
+          "children": []
+        },
+        {
+          "id": "58954540",
+          "title": "8 常用控件",
+          "children": []
+        },
+        {
+          "id": "58954546",
+          "title": "9 Qt消息机制和事件",
+          "children": []
+        },
+        {
+          "id": "58954548",
+          "title": "10 绘图和绘图设备",
+          "children": []
+        },
+        {
+          "id": "58954552",
+          "title": "11 文件系统",
+          "children": []
+        }
+      ]
+    }
+  ]
+}