Add camera calibration toolchain and armor pose solver

- capture_calib: capture calibration images (MindVision / USB) with a live
  quality gate (Laplacian sharpness, 3x3 coverage, board auto-detect)
- calibrate: batch intrinsics from calib_images/, writes configs/camera.yaml
- camera_calib: CameraCalib loader (intrinsics + distortion, cached
  undistort remap) and solvePose() via IPPE with a reprojection gate
- configs/camera.yaml: MV-SUA131GC intrinsics, RMS 0.483 px over 31 images,
  ruler-verified distance error < 2%
- xmake: three targets sharing an rm_deps rule, C++17
- gitignore: keep calibration photos/videos and generated
  compile_commands.json out of the repo

inc/camera_set.hpp

@@ -14,11 +14,11 @@ public:
     bool initializeCamera();                                        // 初始化相机
     bool startCamera();                                             // 启动相机
     bool stopCamera();                                              // 停止相机
-    bool setExposureTime(double exposureTime);                      // 设置曝光时间
-    bool setGain(double gain);                                      // 设置增益
-    bool setWhiteBalance(double redGain, double blueGain);          // 设置白平衡
-    bool setResolution(int width, int height);                      // 设置分辨率
-    bool setFrameRate(double frameRate);                            // 设置帧率
+    // bool setExposureTime(double exposureTime);                      // 设置曝光时间
+    // bool setGain(double gain);                                      // 设置增益
+    // bool setWhiteBalance(double redGain, double blueGain);          // 设置白平衡
+    // bool setResolution(int width, int height);                      // 设置分辨率
+    // bool setFrameRate(double frameRate);                            // 设置帧率
     bool getFrame(cv::Mat &frame);                                  // 获取一帧图像
 
 private: