feat: 升级算法包 delivery_v1.1 → v1.2，新增任务级 CAD 与测距面板

- 算法包替换为 delivery_v1.2（coupler_panel 新增 autotune/layer_select，underframe_deflection 新增 single_beam 管线），删除 delivery_v1.1
- manifests/adapters 的 PYTHONPATH 与版本说明同步更新到 v1.2
- 新增任务级 CAD 文件支持（task_cad_files 表、上传/读取路由、TaskManager 全选与加载显示）
- 新增 train-measurement 自定义前端面板（YAML 编辑器 + 可视化 ROI 配置 + 3D 取点）
- PointCloudViewer 支持 PLY 叠加层渲染与 ROI 拾取
- Dockerfile 改用 Miniforge 安装 pythonocc-core，修复 libgomp/libstdc++ 依赖

alg/delivery_v1.2/underframe_deflection/requirements.txt

@@ -0,0 +1,21 @@
+# underframe_deflection v1.1 — runtime dependencies
+#
+# Core (mandatory for compute_deflection and registration):
+numpy>=1.23,<3.0
+scipy>=1.10,<2.0
+
+# Visualization (required by artifacts.render_plots and the
+# `run_measurement_pipeline` end-to-end flow that writes PNGs):
+matplotlib>=3.5,<4.0
+
+# Excel report writer (required by artifacts/excel_report.write_excel_report;
+# pipeline degrades gracefully if missing, but production deployments should
+# install it):
+openpyxl>=3.1,<4.0
+
+# --- Reference versions used for validation ----------------------------------
+# numpy        1.26.4
+# scipy        1.15.3
+# matplotlib   3.10.8
+# openpyxl     3.1.2
+# Python       3.10.9 (Windows 11 x64)